#,Fact,Value,Unit,Geography,Data period,Source,Publisher,URL (opened),Accessed date,Tier,Methodology notes,Limitations,Suggested citation
1,Base temperature for US degree days,65,degrees F,United States,definition,Degree days (Energy Explained),U.S. Energy Information Administration,https://www.eia.gov/energyexplained/units-and-calculators/degree-days.php,2026-11-02,1,CDD = daily mean temperature minus 65F when above 65F; HDD = 65F minus mean when below,"Degree days are an index, not a measure of energy use","U.S. Energy Information Administration, Degree days (Energy Explained), accessed 2026-11-02"
2,CPC degree days are estimated for 344 climate divisions in 48 states and then population weighted,344,climate divisions,Contiguous US,documentation,Weekly and monthly degree day summaries explanation,NOAA Climate Prediction Center,https://www.cpc.ncep.noaa.gov/products/analysis_monitoring/cdus/degree_days/ddayexp.shtml,2026-11-02,1,Population weighting to reflect temperature-related energy consumption,CPC uses 198 weather stations and regression equations,"NOAA Climate Prediction Center, Weekly and monthly degree day summaries explanation, accessed 2026-11-02"
3,nClimDiv processing date of the files used (version v1.0.0-20261006),20261006,date code,Contiguous US,2026-10-06,nClimDiv processing date file (procdate.txt),NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/procdate.txt,2026-11-02,1,"Files processed 6 October 2026, data through September 2026",nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv processing date file (procdate.txt), accessed 2026-11-02"
4,nClimDiv readme states degree-day population weights use the 2010 Census,2010,census year,Contiguous US,documentation,nClimDiv statewide file readme (state-readme.txt),NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/state-readme.txt,2026-11-02,1,Our rebuild from divisions matches statewide values with 2020 populations (mean absolute error 0.69 CDD) and not 2010 (4.79),Readme and data disagree; data used as found,"NOAA National Centers for Environmental Information, nClimDiv statewide file readme (state-readme.txt), accessed 2026-11-02"
5,EIA weights US degree days using state populations from the same year the degree days are measured,1,method note,United States,October 2026 MER,"Monthly Energy Review, October 2026, Section 1 (table notes)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/monthly/pdf/sec1.pdf,2026-11-02,1,So the EIA series includes the effect of population moving between states,EIA geographic coverage 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review, October 2026, Section 1 (table notes), accessed 2026-11-02"
6,"Air conditioning share of electricity consumption in US homes, 2020",19,percent,United States,2020,FAQ: How much electricity is used for cooling in the United States?,U.S. Energy Information Administration,https://www.eia.gov/tools/faqs/faq.php?id=1174&t=1,2026-11-02,1,EIA RECS 2020; 254 billion kWh,2020 is the latest RECS end-use estimate cited on the page,"U.S. Energy Information Administration, FAQ: How much electricity is used for cooling in the United States?, accessed 2026-11-02"
7,"Electricity used for air conditioning in US homes, 2020",254,billion kWh,United States,2020,FAQ: How much electricity is used for cooling in the United States?,U.S. Energy Information Administration,https://www.eia.gov/tools/faqs/faq.php?id=1174&t=1,2026-11-02,1,EIA RECS 2020,Single year,"U.S. Energy Information Administration, FAQ: How much electricity is used for cooling in the United States?, accessed 2026-11-02"
8,Share of 240 US locations with higher annual CDD since 1970 (Climate Central),97,percent,240 US locations,1970-2022,"Hotter Climate, Higher Cooling Demand (Climate Matters, 19 July 2023)",Climate Central,https://www.climatecentral.org/climate-matters/hotter-climate-higher-cooling-demand-2023,2026-11-02,3,Trend analysis of station data,Tier 3; locations not states,"Climate Central, Hotter Climate, Higher Cooling Demand (Climate Matters, 19 July 2023), accessed 2026-11-02"
9,Average increase in cooling demand since the early 1970s across 241 US cities (Climate Central),37,percent,241 US cities,early 1970s to 2025,"Warming cities, higher cooling demand (Climate Matters, 5 August 2026)",Climate Central,https://www.climatecentral.org/climate-matters/warming-cities-higher-cooling-demand,2026-11-02,3,Based on long-term trends in CDD,"Tier 3; trend-based, cities not states","Climate Central, Warming cities, higher cooling demand (Climate Matters, 5 August 2026), accessed 2026-11-02"
10,States with higher CDD in 2021-2025 than 2001-2005 (Shipley Energy via Stacker),45,of 48 states,Contiguous US,2001-2005 vs 2021-2025,"How a hotter summer changes the cost of cooling your home (Shipley Energy analysis, syndicated by Stacker)",Stacker / Shipley Energy,https://stacker.com/stories/home-garden/how-hotter-summer-changes-cost-cooling-your-home,2026-11-02,3,"Five-year averages, NOAA data","Tier 3; five-year windows, raw counts","Stacker / Shipley Energy, How a hotter summer changes the cost of cooling your home (Shipley Energy analysis, syndicated by Stacker), accessed 2026-11-02"
11,Texas CDD increase between 2001-2005 and 2021-2025 (Shipley Energy via Stacker),427,CDD,Texas,2001-2005 vs 2021-2025,"How a hotter summer changes the cost of cooling your home (Shipley Energy analysis, syndicated by Stacker)",Stacker / Shipley Energy,https://stacker.com/stories/home-garden/how-hotter-summer-changes-cost-cooling-your-home,2026-11-02,3,Five-year averages,Tier 3; not comparable with 10-year averages,"Stacker / Shipley Energy, How a hotter summer changes the cost of cooling your home (Shipley Energy analysis, syndicated by Stacker), accessed 2026-11-02"
12,"Contiguous US annual cooling degree days, 1991 (nClimDiv code 110)",1347,CDD (base 65F),Contiguous US,1991,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
13,"Contiguous US annual heating degree days, 1991 (nClimDiv code 110)",4182,HDD (base 65F),Contiguous US,1991,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
14,"US annual cooling degree days, 1991 (EIA MER ZWCDPUS)",1282,CDD (base 65F),United States,1991,"Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.12,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV), accessed 2026-11-02"
15,"US annual heating degree days, 1991 (EIA MER ZWHDPUS)",4345,HDD (base 65F),United States,1991,"Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.11,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV), accessed 2026-11-02"
16,"Contiguous US annual cooling degree days, 1992 (nClimDiv code 110)",1078,CDD (base 65F),Contiguous US,1992,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
17,"Contiguous US annual heating degree days, 1992 (nClimDiv code 110)",4392,HDD (base 65F),Contiguous US,1992,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
18,"US annual cooling degree days, 1992 (EIA MER ZWCDPUS)",1001,CDD (base 65F),United States,1992,"Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.12,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV), accessed 2026-11-02"
19,"US annual heating degree days, 1992 (EIA MER ZWHDPUS)",4582,HDD (base 65F),United States,1992,"Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.11,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV), accessed 2026-11-02"
20,"Contiguous US annual cooling degree days, 1993 (nClimDiv code 110)",1232,CDD (base 65F),Contiguous US,1993,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
21,"Contiguous US annual heating degree days, 1993 (nClimDiv code 110)",4657,HDD (base 65F),Contiguous US,1993,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
22,"US annual cooling degree days, 1993 (EIA MER ZWCDPUS)",1169,CDD (base 65F),United States,1993,"Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.12,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV), accessed 2026-11-02"
23,"US annual heating degree days, 1993 (EIA MER ZWHDPUS)",4835,HDD (base 65F),United States,1993,"Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.11,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV), accessed 2026-11-02"
24,"Contiguous US annual cooling degree days, 1994 (nClimDiv code 110)",1251,CDD (base 65F),Contiguous US,1994,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
25,"Contiguous US annual heating degree days, 1994 (nClimDiv code 110)",4428,HDD (base 65F),Contiguous US,1994,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
26,"US annual cooling degree days, 1994 (EIA MER ZWCDPUS)",1185,CDD (base 65F),United States,1994,"Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.12,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV), accessed 2026-11-02"
27,"US annual heating degree days, 1994 (EIA MER ZWHDPUS)",4607,HDD (base 65F),United States,1994,"Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.11,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV), accessed 2026-11-02"
28,"Contiguous US annual cooling degree days, 1995 (nClimDiv code 110)",1314,CDD (base 65F),Contiguous US,1995,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
29,"Contiguous US annual heating degree days, 1995 (nClimDiv code 110)",4465,HDD (base 65F),Contiguous US,1995,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
30,"US annual cooling degree days, 1995 (EIA MER ZWCDPUS)",1262,CDD (base 65F),United States,1995,"Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.12,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV), accessed 2026-11-02"
31,"US annual heating degree days, 1995 (EIA MER ZWHDPUS)",4637,HDD (base 65F),United States,1995,"Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.11,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV), accessed 2026-11-02"
32,"Contiguous US annual cooling degree days, 1996 (nClimDiv code 110)",1223,CDD (base 65F),Contiguous US,1996,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
33,"Contiguous US annual heating degree days, 1996 (nClimDiv code 110)",4629,HDD (base 65F),Contiguous US,1996,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
34,"US annual cooling degree days, 1996 (EIA MER ZWCDPUS)",1162,CDD (base 65F),United States,1996,"Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.12,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV), accessed 2026-11-02"
35,"US annual heating degree days, 1996 (EIA MER ZWHDPUS)",4799,HDD (base 65F),United States,1996,"Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.11,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV), accessed 2026-11-02"
36,"Contiguous US annual cooling degree days, 1997 (nClimDiv code 110)",1190,CDD (base 65F),Contiguous US,1997,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
37,"Contiguous US annual heating degree days, 1997 (nClimDiv code 110)",4478,HDD (base 65F),Contiguous US,1997,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
38,"US annual cooling degree days, 1997 (EIA MER ZWCDPUS)",1134,CDD (base 65F),United States,1997,"Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.12,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV), accessed 2026-11-02"
39,"US annual heating degree days, 1997 (EIA MER ZWHDPUS)",4626,HDD (base 65F),United States,1997,"Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.11,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV), accessed 2026-11-02"
40,"Contiguous US annual cooling degree days, 1998 (nClimDiv code 110)",1449,CDD (base 65F),Contiguous US,1998,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
41,"Contiguous US annual heating degree days, 1998 (nClimDiv code 110)",3949,HDD (base 65F),Contiguous US,1998,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
42,"US annual cooling degree days, 1998 (EIA MER ZWCDPUS)",1391,CDD (base 65F),United States,1998,"Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.12,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV), accessed 2026-11-02"
43,"US annual heating degree days, 1998 (EIA MER ZWHDPUS)",4049,HDD (base 65F),United States,1998,"Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.11,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV), accessed 2026-11-02"
44,"Contiguous US annual cooling degree days, 1999 (nClimDiv code 110)",1329,CDD (base 65F),Contiguous US,1999,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
45,"Contiguous US annual heating degree days, 1999 (nClimDiv code 110)",4108,HDD (base 65F),Contiguous US,1999,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
46,"US annual cooling degree days, 1999 (EIA MER ZWCDPUS)",1283,CDD (base 65F),United States,1999,"Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.12,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV), accessed 2026-11-02"
47,"US annual heating degree days, 1999 (EIA MER ZWHDPUS)",4230,HDD (base 65F),United States,1999,"Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.11,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV), accessed 2026-11-02"
48,"Contiguous US annual cooling degree days, 2000 (nClimDiv code 110)",1285,CDD (base 65F),Contiguous US,2000,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
49,"Contiguous US annual heating degree days, 2000 (nClimDiv code 110)",4376,HDD (base 65F),Contiguous US,2000,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
50,"US annual cooling degree days, 2000 (EIA MER ZWCDPUS)",1233,CDD (base 65F),United States,2000,"Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.12,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV), accessed 2026-11-02"
51,"US annual heating degree days, 2000 (EIA MER ZWHDPUS)",4491,HDD (base 65F),United States,2000,"Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.11,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV), accessed 2026-11-02"
52,"Contiguous US annual cooling degree days, 2001 (nClimDiv code 110)",1297,CDD (base 65F),Contiguous US,2001,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
53,"Contiguous US annual heating degree days, 2001 (nClimDiv code 110)",4156,HDD (base 65F),Contiguous US,2001,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
54,"US annual cooling degree days, 2001 (EIA MER ZWCDPUS)",1256,CDD (base 65F),United States,2001,"Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.12,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV), accessed 2026-11-02"
55,"US annual heating degree days, 2001 (EIA MER ZWHDPUS)",4254,HDD (base 65F),United States,2001,"Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.11,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV), accessed 2026-11-02"
56,"Contiguous US annual cooling degree days, 2002 (nClimDiv code 110)",1401,CDD (base 65F),Contiguous US,2002,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
57,"Contiguous US annual heating degree days, 2002 (nClimDiv code 110)",4266,HDD (base 65F),Contiguous US,2002,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
58,"US annual cooling degree days, 2002 (EIA MER ZWCDPUS)",1365,CDD (base 65F),United States,2002,"Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.12,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV), accessed 2026-11-02"
59,"US annual heating degree days, 2002 (EIA MER ZWHDPUS)",4354,HDD (base 65F),United States,2002,"Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.11,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV), accessed 2026-11-02"
60,"Contiguous US annual cooling degree days, 2003 (nClimDiv code 110)",1304,CDD (base 65F),Contiguous US,2003,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
61,"Contiguous US annual heating degree days, 2003 (nClimDiv code 110)",4441,HDD (base 65F),Contiguous US,2003,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
62,"US annual cooling degree days, 2003 (EIA MER ZWCDPUS)",1269,CDD (base 65F),United States,2003,"Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.12,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV), accessed 2026-11-02"
63,"US annual heating degree days, 2003 (EIA MER ZWHDPUS)",4542,HDD (base 65F),United States,2003,"Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.11,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV), accessed 2026-11-02"
64,"Contiguous US annual cooling degree days, 2004 (nClimDiv code 110)",1247,CDD (base 65F),Contiguous US,2004,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
65,"Contiguous US annual heating degree days, 2004 (nClimDiv code 110)",4260,HDD (base 65F),Contiguous US,2004,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
66,"US annual cooling degree days, 2004 (EIA MER ZWCDPUS)",1218,CDD (base 65F),United States,2004,"Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.12,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV), accessed 2026-11-02"
67,"US annual heating degree days, 2004 (EIA MER ZWHDPUS)",4342,HDD (base 65F),United States,2004,"Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.11,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV), accessed 2026-11-02"
68,"Contiguous US annual cooling degree days, 2005 (nClimDiv code 110)",1409,CDD (base 65F),Contiguous US,2005,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
69,"Contiguous US annual heating degree days, 2005 (nClimDiv code 110)",4272,HDD (base 65F),Contiguous US,2005,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
70,"US annual cooling degree days, 2005 (EIA MER ZWCDPUS)",1390,CDD (base 65F),United States,2005,"Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.12,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV), accessed 2026-11-02"
71,"US annual heating degree days, 2005 (EIA MER ZWHDPUS)",4346,HDD (base 65F),United States,2005,"Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.11,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV), accessed 2026-11-02"
72,"Contiguous US annual cooling degree days, 2006 (nClimDiv code 110)",1387,CDD (base 65F),Contiguous US,2006,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
73,"Contiguous US annual heating degree days, 2006 (nClimDiv code 110)",3979,HDD (base 65F),Contiguous US,2006,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
74,"US annual cooling degree days, 2006 (EIA MER ZWCDPUS)",1361,CDD (base 65F),United States,2006,"Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.12,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV), accessed 2026-11-02"
75,"US annual heating degree days, 2006 (EIA MER ZWHDPUS)",4038,HDD (base 65F),United States,2006,"Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.11,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV), accessed 2026-11-02"
76,"Contiguous US annual cooling degree days, 2007 (nClimDiv code 110)",1410,CDD (base 65F),Contiguous US,2007,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
77,"Contiguous US annual heating degree days, 2007 (nClimDiv code 110)",4211,HDD (base 65F),Contiguous US,2007,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
78,"US annual cooling degree days, 2007 (EIA MER ZWCDPUS)",1393,CDD (base 65F),United States,2007,"Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.12,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV), accessed 2026-11-02"
79,"US annual heating degree days, 2007 (EIA MER ZWHDPUS)",4266,HDD (base 65F),United States,2007,"Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.11,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV), accessed 2026-11-02"
80,"Contiguous US annual cooling degree days, 2008 (nClimDiv code 110)",1299,CDD (base 65F),Contiguous US,2008,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
81,"Contiguous US annual heating degree days, 2008 (nClimDiv code 110)",4436,HDD (base 65F),Contiguous US,2008,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
82,"US annual cooling degree days, 2008 (EIA MER ZWCDPUS)",1284,CDD (base 65F),United States,2008,"Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.12,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV), accessed 2026-11-02"
83,"US annual heating degree days, 2008 (EIA MER ZWHDPUS)",4492,HDD (base 65F),United States,2008,"Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.11,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV), accessed 2026-11-02"
84,"Contiguous US annual cooling degree days, 2009 (nClimDiv code 110)",1259,CDD (base 65F),Contiguous US,2009,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
85,"Contiguous US annual heating degree days, 2009 (nClimDiv code 110)",4433,HDD (base 65F),Contiguous US,2009,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
86,"US annual cooling degree days, 2009 (EIA MER ZWCDPUS)",1242,CDD (base 65F),United States,2009,"Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.12,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV), accessed 2026-11-02"
87,"US annual heating degree days, 2009 (EIA MER ZWHDPUS)",4478,HDD (base 65F),United States,2009,"Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.11,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV), accessed 2026-11-02"
88,"Contiguous US annual cooling degree days, 2010 (nClimDiv code 110)",1468,CDD (base 65F),Contiguous US,2010,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
89,"Contiguous US annual heating degree days, 2010 (nClimDiv code 110)",4429,HDD (base 65F),Contiguous US,2010,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
90,"US annual cooling degree days, 2010 (EIA MER ZWCDPUS)",1457,CDD (base 65F),United States,2010,"Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.12,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV), accessed 2026-11-02"
91,"US annual heating degree days, 2010 (EIA MER ZWHDPUS)",4461,HDD (base 65F),United States,2010,"Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.11,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV), accessed 2026-11-02"
92,"Contiguous US annual cooling degree days, 2011 (nClimDiv code 110)",1482,CDD (base 65F),Contiguous US,2011,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
93,"Contiguous US annual heating degree days, 2011 (nClimDiv code 110)",4280,HDD (base 65F),Contiguous US,2011,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
94,"US annual cooling degree days, 2011 (EIA MER ZWCDPUS)",1470,CDD (base 65F),United States,2011,"Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.12,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV), accessed 2026-11-02"
95,"US annual heating degree days, 2011 (EIA MER ZWHDPUS)",4312,HDD (base 65F),United States,2011,"Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.11,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV), accessed 2026-11-02"
96,"Contiguous US annual cooling degree days, 2012 (nClimDiv code 110)",1502,CDD (base 65F),Contiguous US,2012,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
97,"Contiguous US annual heating degree days, 2012 (nClimDiv code 110)",3739,HDD (base 65F),Contiguous US,2012,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
98,"US annual cooling degree days, 2012 (EIA MER ZWCDPUS)",1494,CDD (base 65F),United States,2012,"Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.12,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV), accessed 2026-11-02"
99,"US annual heating degree days, 2012 (EIA MER ZWHDPUS)",3771,HDD (base 65F),United States,2012,"Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.11,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV), accessed 2026-11-02"
100,"Contiguous US annual cooling degree days, 2013 (nClimDiv code 110)",1312,CDD (base 65F),Contiguous US,2013,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
101,"Contiguous US annual heating degree days, 2013 (nClimDiv code 110)",4444,HDD (base 65F),Contiguous US,2013,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
102,"US annual cooling degree days, 2013 (EIA MER ZWCDPUS)",1304,CDD (base 65F),United States,2013,"Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.12,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV), accessed 2026-11-02"
103,"US annual heating degree days, 2013 (EIA MER ZWHDPUS)",4470,HDD (base 65F),United States,2013,"Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.11,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV), accessed 2026-11-02"
104,"Contiguous US annual cooling degree days, 2014 (nClimDiv code 110)",1298,CDD (base 65F),Contiguous US,2014,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
105,"Contiguous US annual heating degree days, 2014 (nClimDiv code 110)",4535,HDD (base 65F),Contiguous US,2014,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
106,"US annual cooling degree days, 2014 (EIA MER ZWCDPUS)",1295,CDD (base 65F),United States,2014,"Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.12,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV), accessed 2026-11-02"
107,"US annual heating degree days, 2014 (EIA MER ZWHDPUS)",4558,HDD (base 65F),United States,2014,"Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.11,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV), accessed 2026-11-02"
108,"Contiguous US annual cooling degree days, 2015 (nClimDiv code 110)",1483,CDD (base 65F),Contiguous US,2015,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
109,"Contiguous US annual heating degree days, 2015 (nClimDiv code 110)",4078,HDD (base 65F),Contiguous US,2015,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
110,"US annual cooling degree days, 2015 (EIA MER ZWCDPUS)",1484,CDD (base 65F),United States,2015,"Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.12,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV), accessed 2026-11-02"
111,"US annual heating degree days, 2015 (EIA MER ZWHDPUS)",4094,HDD (base 65F),United States,2015,"Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.11,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV), accessed 2026-11-02"
112,"Contiguous US annual cooling degree days, 2016 (nClimDiv code 110)",1549,CDD (base 65F),Contiguous US,2016,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
113,"Contiguous US annual heating degree days, 2016 (nClimDiv code 110)",3879,HDD (base 65F),Contiguous US,2016,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
114,"US annual cooling degree days, 2016 (EIA MER ZWCDPUS)",1554,CDD (base 65F),United States,2016,"Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.12,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV), accessed 2026-11-02"
115,"US annual heating degree days, 2016 (EIA MER ZWHDPUS)",3887,HDD (base 65F),United States,2016,"Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.11,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV), accessed 2026-11-02"
116,"Contiguous US annual cooling degree days, 2017 (nClimDiv code 110)",1418,CDD (base 65F),Contiguous US,2017,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
117,"Contiguous US annual heating degree days, 2017 (nClimDiv code 110)",3833,HDD (base 65F),Contiguous US,2017,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
118,"US annual cooling degree days, 2017 (EIA MER ZWCDPUS)",1423,CDD (base 65F),United States,2017,"Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.12,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV), accessed 2026-11-02"
119,"US annual heating degree days, 2017 (EIA MER ZWHDPUS)",3838,HDD (base 65F),United States,2017,"Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.11,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV), accessed 2026-11-02"
120,"Contiguous US annual cooling degree days, 2018 (nClimDiv code 110)",1571,CDD (base 65F),Contiguous US,2018,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
121,"Contiguous US annual heating degree days, 2018 (nClimDiv code 110)",4292,HDD (base 65F),Contiguous US,2018,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
122,"US annual cooling degree days, 2018 (EIA MER ZWCDPUS)",1579,CDD (base 65F),United States,2018,"Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.12,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV), accessed 2026-11-02"
123,"US annual heating degree days, 2018 (EIA MER ZWHDPUS)",4291,HDD (base 65F),United States,2018,"Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.11,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV), accessed 2026-11-02"
124,"Contiguous US annual cooling degree days, 2019 (nClimDiv code 110)",1484,CDD (base 65F),Contiguous US,2019,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
125,"Contiguous US annual heating degree days, 2019 (nClimDiv code 110)",4327,HDD (base 65F),Contiguous US,2019,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
126,"US annual cooling degree days, 2019 (EIA MER ZWCDPUS)",1495,CDD (base 65F),United States,2019,"Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.12,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV), accessed 2026-11-02"
127,"US annual heating degree days, 2019 (EIA MER ZWHDPUS)",4317,HDD (base 65F),United States,2019,"Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.11,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV), accessed 2026-11-02"
128,"Contiguous US annual cooling degree days, 2020 (nClimDiv code 110)",1503,CDD (base 65F),Contiguous US,2020,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
129,"Contiguous US annual heating degree days, 2020 (nClimDiv code 110)",3920,HDD (base 65F),Contiguous US,2020,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
130,"US annual cooling degree days, 2020 (EIA MER ZWCDPUS)",1519,CDD (base 65F),United States,2020,"Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.12,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV), accessed 2026-11-02"
131,"US annual heating degree days, 2020 (EIA MER ZWHDPUS)",3914,HDD (base 65F),United States,2020,"Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.11,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV), accessed 2026-11-02"
132,"Contiguous US annual cooling degree days, 2021 (nClimDiv code 110)",1474,CDD (base 65F),Contiguous US,2021,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
133,"Contiguous US annual heating degree days, 2021 (nClimDiv code 110)",3945,HDD (base 65F),Contiguous US,2021,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
134,"US annual cooling degree days, 2021 (EIA MER ZWCDPUS)",1492,CDD (base 65F),United States,2021,"Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.12,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV), accessed 2026-11-02"
135,"US annual heating degree days, 2021 (EIA MER ZWHDPUS)",3934,HDD (base 65F),United States,2021,"Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.11,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV), accessed 2026-11-02"
136,"Contiguous US annual cooling degree days, 2022 (nClimDiv code 110)",1530,CDD (base 65F),Contiguous US,2022,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
137,"Contiguous US annual heating degree days, 2022 (nClimDiv code 110)",4268,HDD (base 65F),Contiguous US,2022,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
138,"US annual cooling degree days, 2022 (EIA MER ZWCDPUS)",1557,CDD (base 65F),United States,2022,"Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.12,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV), accessed 2026-11-02"
139,"US annual heating degree days, 2022 (EIA MER ZWHDPUS)",4243,HDD (base 65F),United States,2022,"Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.11,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV), accessed 2026-11-02"
140,"Contiguous US annual cooling degree days, 2023 (nClimDiv code 110)",1446,CDD (base 65F),Contiguous US,2023,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
141,"Contiguous US annual heating degree days, 2023 (nClimDiv code 110)",3828,HDD (base 65F),Contiguous US,2023,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
142,"US annual cooling degree days, 2023 (EIA MER ZWCDPUS)",1480,CDD (base 65F),United States,2023,"Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.12,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV), accessed 2026-11-02"
143,"US annual heating degree days, 2023 (EIA MER ZWHDPUS)",3802,HDD (base 65F),United States,2023,"Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.11,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV), accessed 2026-11-02"
144,"Contiguous US annual cooling degree days, 2024 (nClimDiv code 110)",1600,CDD (base 65F),Contiguous US,2024,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
145,"Contiguous US annual heating degree days, 2024 (nClimDiv code 110)",3721,HDD (base 65F),Contiguous US,2024,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
146,"US annual cooling degree days, 2024 (EIA MER ZWCDPUS)",1633,CDD (base 65F),United States,2024,"Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.12,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV), accessed 2026-11-02"
147,"US annual heating degree days, 2024 (EIA MER ZWHDPUS)",3692,HDD (base 65F),United States,2024,"Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.11,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV), accessed 2026-11-02"
148,"Contiguous US annual cooling degree days, 2025 (nClimDiv code 110)",1502,CDD (base 65F),Contiguous US,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
149,"Contiguous US annual heating degree days, 2025 (nClimDiv code 110)",4062,HDD (base 65F),Contiguous US,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
150,"US annual cooling degree days, 2025 (EIA MER ZWCDPUS)",1540,CDD (base 65F),United States,2025,"Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.12,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.12, Cooling Degree Days by Census Division (CSV), accessed 2026-11-02"
151,"US annual heating degree days, 2025 (EIA MER ZWHDPUS)",4023,HDD (base 65F),United States,2025,"Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV)",U.S. Energy Information Administration,https://www.eia.gov/totalenergy/data/browser/csv.php?tbl=T01.11,2026-11-02,1,Population-weighted with same-year state populations,Includes migration effect; 50 states and DC,"U.S. Energy Information Administration, Monthly Energy Review Table 1.11, Heating Degree Days by Census Division (CSV), accessed 2026-11-02"
152,"Alabama annual cooling degree days, 2025",2092,CDD,Alabama,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
153,"Alabama annual heating degree days, 2025",2505,HDD,Alabama,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
154,"Alabama cooling degree day normal, 1991-2020 annual",1946,CDD,Alabama,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
155,"Alabama heating degree day normal, 1991-2020 annual",2669,HDD,Alabama,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
156,"Alabama cooling degree days, January to September 2026 (preliminary)",2168,CDD,Alabama,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
157,"Alabama cooling degree day normal, January to September, 1991-2020",1848,CDD,Alabama,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
158,"Alabama cooling degree days, 2025 (CPC)",1993,CDD,Alabama,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
159,"Alabama cooling degree days, January to September 2026 (CPC)",2135,CDD,Alabama,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
160,"Alabama cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",20,percent,Alabama,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
161,"Arizona annual cooling degree days, 2025",3330,CDD,Arizona,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
162,"Arizona annual heating degree days, 2025",1563,HDD,Arizona,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
163,"Arizona cooling degree day normal, 1991-2020 annual",3063,CDD,Arizona,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
164,"Arizona heating degree day normal, 1991-2020 annual",1919,HDD,Arizona,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
165,"Arizona cooling degree days, January to September 2026 (preliminary)",3484,CDD,Arizona,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
166,"Arizona cooling degree day normal, January to September, 1991-2020",2838,CDD,Arizona,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
167,"Arizona cooling degree days, 2025 (CPC)",2498,CDD,Arizona,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
168,"Arizona cooling degree days, January to September 2026 (CPC)",2587,CDD,Arizona,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
169,"Arizona cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",-6,percent,Arizona,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
170,"Arkansas annual cooling degree days, 2025",1990,CDD,Arkansas,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
171,"Arkansas annual heating degree days, 2025",3048,HDD,Arkansas,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
172,"Arkansas cooling degree day normal, 1991-2020 annual",1763,CDD,Arkansas,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
173,"Arkansas heating degree day normal, 1991-2020 annual",3393,HDD,Arkansas,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
174,"Arkansas cooling degree days, January to September 2026 (preliminary)",2320,CDD,Arkansas,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
175,"Arkansas cooling degree day normal, January to September, 1991-2020",1712,CDD,Arkansas,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
176,"Arkansas cooling degree days, 2025 (CPC)",1953,CDD,Arkansas,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
177,"Arkansas cooling degree days, January to September 2026 (CPC)",2258,CDD,Arkansas,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
178,"Arkansas cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",29,percent,Arkansas,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
179,"California annual cooling degree days, 2025",948,CDD,California,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
180,"California annual heating degree days, 2025",2518,HDD,California,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
181,"California cooling degree day normal, 1991-2020 annual",930,CDD,California,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
182,"California heating degree day normal, 1991-2020 annual",2814,HDD,California,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
183,"California cooling degree days, January to September 2026 (preliminary)",1118,CDD,California,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
184,"California cooling degree day normal, January to September, 1991-2020",878,CDD,California,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
185,"California cooling degree days, 2025 (CPC)",814,CDD,California,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
186,"California cooling degree days, January to September 2026 (CPC)",950,CDD,California,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
187,"California cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",17,percent,California,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
188,"Colorado annual cooling degree days, 2025",348,CDD,Colorado,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
189,"Colorado annual heating degree days, 2025",6554,HDD,Colorado,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
190,"Colorado cooling degree day normal, 1991-2020 annual",328,CDD,Colorado,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
191,"Colorado heating degree day normal, 1991-2020 annual",7053,HDD,Colorado,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
192,"Colorado cooling degree days, January to September 2026 (preliminary)",567,CDD,Colorado,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
193,"Colorado cooling degree day normal, January to September, 1991-2020",328,CDD,Colorado,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
194,"Colorado cooling degree days, 2025 (CPC)",342,CDD,Colorado,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
195,"Colorado cooling degree days, January to September 2026 (CPC)",587,CDD,Colorado,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
196,"Colorado cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",68,percent,Colorado,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
197,"Connecticut annual cooling degree days, 2025",695,CDD,Connecticut,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
198,"Connecticut annual heating degree days, 2025",5765,HDD,Connecticut,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
199,"Connecticut cooling degree day normal, 1991-2020 annual",606,CDD,Connecticut,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
200,"Connecticut heating degree day normal, 1991-2020 annual",5849,HDD,Connecticut,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
201,"Connecticut cooling degree days, January to September 2026 (preliminary)",641,CDD,Connecticut,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
202,"Connecticut cooling degree day normal, January to September, 1991-2020",605,CDD,Connecticut,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
203,"Connecticut cooling degree days, 2025 (CPC)",689,CDD,Connecticut,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
204,"Connecticut cooling degree days, January to September 2026 (CPC)",657,CDD,Connecticut,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
205,"Connecticut cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",10,percent,Connecticut,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
206,"Delaware annual cooling degree days, 2025",1171,CDD,Delaware,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
207,"Delaware annual heating degree days, 2025",4547,HDD,Delaware,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
208,"Delaware cooling degree day normal, 1991-2020 annual",1140,CDD,Delaware,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
209,"Delaware heating degree day normal, 1991-2020 annual",4482,HDD,Delaware,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
210,"Delaware cooling degree days, January to September 2026 (preliminary)",1304,CDD,Delaware,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
211,"Delaware cooling degree day normal, January to September, 1991-2020",1123,CDD,Delaware,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
212,"Delaware cooling degree days, 2025 (CPC)",1117,CDD,Delaware,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
213,"Delaware cooling degree days, January to September 2026 (CPC)",1263,CDD,Delaware,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
214,"Delaware cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",8,percent,Delaware,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
215,"Florida annual cooling degree days, 2025",3882,CDD,Florida,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
216,"Florida annual heating degree days, 2025",614,HDD,Florida,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
217,"Florida cooling degree day normal, 1991-2020 annual",3581,CDD,Florida,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
218,"Florida heating degree day normal, 1991-2020 annual",645,HDD,Florida,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
219,"Florida cooling degree days, January to September 2026 (preliminary)",3303,CDD,Florida,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
220,"Florida cooling degree day normal, January to September, 1991-2020",2975,CDD,Florida,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
221,"Florida cooling degree days, 2025 (CPC)",3041,CDD,Florida,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
222,"Florida cooling degree days, January to September 2026 (CPC)",2699,CDD,Florida,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
223,"Florida cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",-3,percent,Florida,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
224,"Georgia annual cooling degree days, 2025",1831,CDD,Georgia,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
225,"Georgia annual heating degree days, 2025",2627,HDD,Georgia,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
226,"Georgia cooling degree day normal, 1991-2020 annual",1726,CDD,Georgia,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
227,"Georgia heating degree day normal, 1991-2020 annual",2807,HDD,Georgia,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
228,"Georgia cooling degree days, January to September 2026 (preliminary)",1929,CDD,Georgia,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
229,"Georgia cooling degree day normal, January to September, 1991-2020",1648,CDD,Georgia,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
230,"Georgia cooling degree days, 2025 (CPC)",1836,CDD,Georgia,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
231,"Georgia cooling degree days, January to September 2026 (CPC)",1988,CDD,Georgia,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
232,"Georgia cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",22,percent,Georgia,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
233,"Idaho annual cooling degree days, 2025",627,CDD,Idaho,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
234,"Idaho annual heating degree days, 2025",6232,HDD,Idaho,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
235,"Idaho cooling degree day normal, 1991-2020 annual",488,CDD,Idaho,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
236,"Idaho heating degree day normal, 1991-2020 annual",6869,HDD,Idaho,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
237,"Idaho cooling degree days, January to September 2026 (preliminary)",654,CDD,Idaho,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
238,"Idaho cooling degree day normal, January to September, 1991-2020",488,CDD,Idaho,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
239,"Idaho cooling degree days, 2025 (CPC)",475,CDD,Idaho,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
240,"Idaho cooling degree days, January to September 2026 (CPC)",511,CDD,Idaho,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
241,"Idaho cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",11,percent,Idaho,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
242,"Illinois annual cooling degree days, 2025",1038,CDD,Illinois,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
243,"Illinois annual heating degree days, 2025",5896,HDD,Illinois,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
244,"Illinois cooling degree day normal, 1991-2020 annual",888,CDD,Illinois,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
245,"Illinois heating degree day normal, 1991-2020 annual",6104,HDD,Illinois,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
246,"Illinois cooling degree days, January to September 2026 (preliminary)",1011,CDD,Illinois,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
247,"Illinois cooling degree day normal, January to September, 1991-2020",880,CDD,Illinois,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
248,"Illinois cooling degree days, 2025 (CPC)",1062,CDD,Illinois,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
249,"Illinois cooling degree days, January to September 2026 (CPC)",1044,CDD,Illinois,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
250,"Illinois cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",19,percent,Illinois,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
251,"Indiana annual cooling degree days, 2025",1041,CDD,Indiana,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
252,"Indiana annual heating degree days, 2025",5589,HDD,Indiana,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
253,"Indiana cooling degree day normal, 1991-2020 annual",912,CDD,Indiana,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
254,"Indiana heating degree day normal, 1991-2020 annual",5627,HDD,Indiana,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
255,"Indiana cooling degree days, January to September 2026 (preliminary)",1030,CDD,Indiana,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
256,"Indiana cooling degree day normal, January to September, 1991-2020",902,CDD,Indiana,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
257,"Indiana cooling degree days, 2025 (CPC)",1010,CDD,Indiana,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
258,"Indiana cooling degree days, January to September 2026 (CPC)",1034,CDD,Indiana,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
259,"Indiana cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",14,percent,Indiana,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
260,"Iowa annual cooling degree days, 2025",953,CDD,Iowa,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
261,"Iowa annual heating degree days, 2025",6444,HDD,Iowa,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
262,"Iowa cooling degree day normal, 1991-2020 annual",809,CDD,Iowa,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
263,"Iowa heating degree day normal, 1991-2020 annual",6821,HDD,Iowa,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
264,"Iowa cooling degree days, January to September 2026 (preliminary)",976,CDD,Iowa,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
265,"Iowa cooling degree day normal, January to September, 1991-2020",803,CDD,Iowa,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
266,"Iowa cooling degree days, 2025 (CPC)",919,CDD,Iowa,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
267,"Iowa cooling degree days, January to September 2026 (CPC)",978,CDD,Iowa,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
268,"Iowa cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",24,percent,Iowa,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
269,"Kansas annual cooling degree days, 2025",1488,CDD,Kansas,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
270,"Kansas annual heating degree days, 2025",4617,HDD,Kansas,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
271,"Kansas cooling degree day normal, 1991-2020 annual",1457,CDD,Kansas,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
272,"Kansas heating degree day normal, 1991-2020 annual",4878,HDD,Kansas,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
273,"Kansas cooling degree days, January to September 2026 (preliminary)",1873,CDD,Kansas,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
274,"Kansas cooling degree day normal, January to September, 1991-2020",1436,CDD,Kansas,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
275,"Kansas cooling degree days, 2025 (CPC)",1387,CDD,Kansas,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
276,"Kansas cooling degree days, January to September 2026 (CPC)",1801,CDD,Kansas,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
277,"Kansas cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",26,percent,Kansas,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
278,"Kentucky annual cooling degree days, 2025",1400,CDD,Kentucky,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
279,"Kentucky annual heating degree days, 2025",4267,HDD,Kentucky,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
280,"Kentucky cooling degree day normal, 1991-2020 annual",1227,CDD,Kentucky,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
281,"Kentucky heating degree day normal, 1991-2020 annual",4396,HDD,Kentucky,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
282,"Kentucky cooling degree days, January to September 2026 (preliminary)",1488,CDD,Kentucky,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
283,"Kentucky cooling degree day normal, January to September, 1991-2020",1204,CDD,Kentucky,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
284,"Kentucky cooling degree days, 2025 (CPC)",1303,CDD,Kentucky,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
285,"Kentucky cooling degree days, January to September 2026 (CPC)",1442,CDD,Kentucky,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
286,"Kentucky cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",20,percent,Kentucky,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
287,"Louisiana annual cooling degree days, 2025",3033,CDD,Louisiana,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
288,"Louisiana annual heating degree days, 2025",1442,HDD,Louisiana,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
289,"Louisiana cooling degree day normal, 1991-2020 annual",2695,CDD,Louisiana,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
290,"Louisiana heating degree day normal, 1991-2020 annual",1652,HDD,Louisiana,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
291,"Louisiana cooling degree days, January to September 2026 (preliminary)",2890,CDD,Louisiana,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
292,"Louisiana cooling degree day normal, January to September, 1991-2020",2476,CDD,Louisiana,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
293,"Louisiana cooling degree days, 2025 (CPC)",2443,CDD,Louisiana,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
294,"Louisiana cooling degree days, January to September 2026 (CPC)",2380,CDD,Louisiana,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
295,"Louisiana cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",4,percent,Louisiana,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
296,"Maine annual cooling degree days, 2025",282,CDD,Maine,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
297,"Maine annual heating degree days, 2025",7662,HDD,Maine,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
298,"Maine cooling degree day normal, 1991-2020 annual",239,CDD,Maine,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
299,"Maine heating degree day normal, 1991-2020 annual",7759,HDD,Maine,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
300,"Maine cooling degree days, January to September 2026 (preliminary)",313,CDD,Maine,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
301,"Maine cooling degree day normal, January to September, 1991-2020",239,CDD,Maine,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
302,"Maine cooling degree days, 2025 (CPC)",279,CDD,Maine,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
303,"Maine cooling degree days, January to September 2026 (CPC)",262,CDD,Maine,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
304,"Maine cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",18,percent,Maine,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
305,"Maryland annual cooling degree days, 2025",1209,CDD,Maryland,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
306,"Maryland annual heating degree days, 2025",4519,HDD,Maryland,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
307,"Maryland cooling degree day normal, 1991-2020 annual",1140,CDD,Maryland,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
308,"Maryland heating degree day normal, 1991-2020 annual",4564,HDD,Maryland,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
309,"Maryland cooling degree days, January to September 2026 (preliminary)",1269,CDD,Maryland,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
310,"Maryland cooling degree day normal, January to September, 1991-2020",1125,CDD,Maryland,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
311,"Maryland cooling degree days, 2025 (CPC)",1193,CDD,Maryland,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
312,"Maryland cooling degree days, January to September 2026 (CPC)",1381,CDD,Maryland,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
313,"Maryland cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",15,percent,Maryland,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
314,"Massachusetts annual cooling degree days, 2025",587,CDD,Massachusetts,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
315,"Massachusetts annual heating degree days, 2025",6056,HDD,Massachusetts,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
316,"Massachusetts cooling degree day normal, 1991-2020 annual",517,CDD,Massachusetts,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
317,"Massachusetts heating degree day normal, 1991-2020 annual",6134,HDD,Massachusetts,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
318,"Massachusetts cooling degree days, January to September 2026 (preliminary)",593,CDD,Massachusetts,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
319,"Massachusetts cooling degree day normal, January to September, 1991-2020",516,CDD,Massachusetts,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
320,"Massachusetts cooling degree days, 2025 (CPC)",524,CDD,Massachusetts,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
321,"Massachusetts cooling degree days, January to September 2026 (CPC)",538,CDD,Massachusetts,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
322,"Massachusetts cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",4,percent,Massachusetts,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
323,"Michigan annual cooling degree days, 2025",670,CDD,Michigan,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
324,"Michigan annual heating degree days, 2025",6634,HDD,Michigan,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
325,"Michigan cooling degree day normal, 1991-2020 annual",580,CDD,Michigan,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
326,"Michigan heating degree day normal, 1991-2020 annual",6745,HDD,Michigan,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
327,"Michigan cooling degree days, January to September 2026 (preliminary)",665,CDD,Michigan,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
328,"Michigan cooling degree day normal, January to September, 1991-2020",577,CDD,Michigan,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
329,"Michigan cooling degree days, 2025 (CPC)",623,CDD,Michigan,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
330,"Michigan cooling degree days, January to September 2026 (CPC)",628,CDD,Michigan,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
331,"Michigan cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",10,percent,Michigan,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
332,"Minnesota annual cooling degree days, 2025",522,CDD,Minnesota,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
333,"Minnesota annual heating degree days, 2025",8152,HDD,Minnesota,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
334,"Minnesota cooling degree day normal, 1991-2020 annual",455,CDD,Minnesota,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
335,"Minnesota heating degree day normal, 1991-2020 annual",8534,HDD,Minnesota,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
336,"Minnesota cooling degree days, January to September 2026 (preliminary)",602,CDD,Minnesota,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
337,"Minnesota cooling degree day normal, January to September, 1991-2020",455,CDD,Minnesota,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
338,"Minnesota cooling degree days, 2025 (CPC)",489,CDD,Minnesota,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
339,"Minnesota cooling degree days, January to September 2026 (CPC)",547,CDD,Minnesota,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
340,"Minnesota cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",27,percent,Minnesota,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
341,"Mississippi annual cooling degree days, 2025",2510,CDD,Mississippi,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
342,"Mississippi annual heating degree days, 2025",2104,HDD,Mississippi,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
343,"Mississippi cooling degree day normal, 1991-2020 annual",2181,CDD,Mississippi,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
344,"Mississippi heating degree day normal, 1991-2020 annual",2388,HDD,Mississippi,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
345,"Mississippi cooling degree days, January to September 2026 (preliminary)",2548,CDD,Mississippi,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
346,"Mississippi cooling degree day normal, January to September, 1991-2020",2060,CDD,Mississippi,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
347,"Mississippi cooling degree days, 2025 (CPC)",2436,CDD,Mississippi,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
348,"Mississippi cooling degree days, January to September 2026 (CPC)",2525,CDD,Mississippi,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
349,"Mississippi cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",27,percent,Mississippi,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
350,"Missouri annual cooling degree days, 2025",1413,CDD,Missouri,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
351,"Missouri annual heating degree days, 2025",4680,HDD,Missouri,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
352,"Missouri cooling degree day normal, 1991-2020 annual",1265,CDD,Missouri,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
353,"Missouri heating degree day normal, 1991-2020 annual",4980,HDD,Missouri,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
354,"Missouri cooling degree days, January to September 2026 (preliminary)",1616,CDD,Missouri,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
355,"Missouri cooling degree day normal, January to September, 1991-2020",1246,CDD,Missouri,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
356,"Missouri cooling degree days, 2025 (CPC)",1383,CDD,Missouri,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
357,"Missouri cooling degree days, January to September 2026 (CPC)",1606,CDD,Missouri,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
358,"Missouri cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",33,percent,Missouri,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
359,"Montana annual cooling degree days, 2025",237,CDD,Montana,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
360,"Montana annual heating degree days, 2025",8014,HDD,Montana,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
361,"Montana cooling degree day normal, 1991-2020 annual",195,CDD,Montana,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
362,"Montana heating degree day normal, 1991-2020 annual",8549,HDD,Montana,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
363,"Montana cooling degree days, January to September 2026 (preliminary)",290,CDD,Montana,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
364,"Montana cooling degree day normal, January to September, 1991-2020",195,CDD,Montana,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
365,"Montana cooling degree days, 2025 (CPC)",147,CDD,Montana,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
366,"Montana cooling degree days, January to September 2026 (CPC)",259,CDD,Montana,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
367,"Montana cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",17,percent,Montana,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
368,"Nebraska annual cooling degree days, 2025",1096,CDD,Nebraska,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
369,"Nebraska annual heating degree days, 2025",5808,HDD,Nebraska,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
370,"Nebraska cooling degree day normal, 1991-2020 annual",995,CDD,Nebraska,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
371,"Nebraska heating degree day normal, 1991-2020 annual",6281,HDD,Nebraska,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
372,"Nebraska cooling degree days, January to September 2026 (preliminary)",1220,CDD,Nebraska,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
373,"Nebraska cooling degree day normal, January to September, 1991-2020",989,CDD,Nebraska,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
374,"Nebraska cooling degree days, 2025 (CPC)",1002,CDD,Nebraska,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
375,"Nebraska cooling degree days, January to September 2026 (CPC)",1121,CDD,Nebraska,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
376,"Nebraska cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",17,percent,Nebraska,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
377,"Nevada annual cooling degree days, 2025",2339,CDD,Nevada,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
378,"Nevada annual heating degree days, 2025",2916,HDD,Nevada,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
379,"Nevada cooling degree day normal, 1991-2020 annual",2166,CDD,Nevada,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
380,"Nevada heating degree day normal, 1991-2020 annual",3451,HDD,Nevada,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
381,"Nevada cooling degree days, January to September 2026 (preliminary)",2537,CDD,Nevada,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
382,"Nevada cooling degree day normal, January to September, 1991-2020",2073,CDD,Nevada,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
383,"Nevada cooling degree days, 2025 (CPC)",1982,CDD,Nevada,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
384,"Nevada cooling degree days, January to September 2026 (CPC)",2193,CDD,Nevada,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
385,"Nevada cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",17,percent,Nevada,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
386,"New Hampshire annual cooling degree days, 2025",386,CDD,New Hampshire,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
387,"New Hampshire annual heating degree days, 2025",7368,HDD,New Hampshire,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
388,"New Hampshire cooling degree day normal, 1991-2020 annual",300,CDD,New Hampshire,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
389,"New Hampshire heating degree day normal, 1991-2020 annual",7449,HDD,New Hampshire,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
390,"New Hampshire cooling degree days, January to September 2026 (preliminary)",364,CDD,New Hampshire,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
391,"New Hampshire cooling degree day normal, January to September, 1991-2020",300,CDD,New Hampshire,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
392,"New Hampshire cooling degree days, 2025 (CPC)",449,CDD,New Hampshire,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
393,"New Hampshire cooling degree days, January to September 2026 (CPC)",357,CDD,New Hampshire,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
394,"New Hampshire cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",19,percent,New Hampshire,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
395,"New Jersey annual cooling degree days, 2025",926,CDD,New Jersey,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
396,"New Jersey annual heating degree days, 2025",5159,HDD,New Jersey,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
397,"New Jersey cooling degree day normal, 1991-2020 annual",858,CDD,New Jersey,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
398,"New Jersey heating degree day normal, 1991-2020 annual",5168,HDD,New Jersey,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
399,"New Jersey cooling degree days, January to September 2026 (preliminary)",963,CDD,New Jersey,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
400,"New Jersey cooling degree day normal, January to September, 1991-2020",851,CDD,New Jersey,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
401,"New Jersey cooling degree days, 2025 (CPC)",906,CDD,New Jersey,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
402,"New Jersey cooling degree days, January to September 2026 (CPC)",1005,CDD,New Jersey,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
403,"New Jersey cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",20,percent,New Jersey,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
404,"New Mexico annual cooling degree days, 2025",1145,CDD,New Mexico,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
405,"New Mexico annual heating degree days, 2025",3957,HDD,New Mexico,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
406,"New Mexico cooling degree day normal, 1991-2020 annual",1002,CDD,New Mexico,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
407,"New Mexico heating degree day normal, 1991-2020 annual",4462,HDD,New Mexico,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
408,"New Mexico cooling degree days, January to September 2026 (preliminary)",1474,CDD,New Mexico,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
409,"New Mexico cooling degree day normal, January to September, 1991-2020",995,CDD,New Mexico,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
410,"New Mexico cooling degree days, 2025 (CPC)",813,CDD,New Mexico,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
411,"New Mexico cooling degree days, January to September 2026 (CPC)",1126,CDD,New Mexico,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
412,"New Mexico cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",21,percent,New Mexico,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
413,"New York annual cooling degree days, 2025",716,CDD,New York,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
414,"New York annual heating degree days, 2025",5920,HDD,New York,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
415,"New York cooling degree day normal, 1991-2020 annual",619,CDD,New York,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
416,"New York heating degree day normal, 1991-2020 annual",6000,HDD,New York,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
417,"New York cooling degree days, January to September 2026 (preliminary)",665,CDD,New York,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
418,"New York cooling degree day normal, January to September, 1991-2020",616,CDD,New York,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
419,"New York cooling degree days, 2025 (CPC)",639,CDD,New York,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
420,"New York cooling degree days, January to September 2026 (CPC)",632,CDD,New York,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
421,"New York cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",0,percent,New York,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
422,"North Carolina annual cooling degree days, 2025",1533,CDD,North Carolina,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
423,"North Carolina annual heating degree days, 2025",3270,HDD,North Carolina,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
424,"North Carolina cooling degree day normal, 1991-2020 annual",1470,CDD,North Carolina,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
425,"North Carolina heating degree day normal, 1991-2020 annual",3359,HDD,North Carolina,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
426,"North Carolina cooling degree days, January to September 2026 (preliminary)",1693,CDD,North Carolina,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
427,"North Carolina cooling degree day normal, January to September, 1991-2020",1427,CDD,North Carolina,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
428,"North Carolina cooling degree days, 2025 (CPC)",1574,CDD,North Carolina,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
429,"North Carolina cooling degree days, January to September 2026 (CPC)",1782,CDD,North Carolina,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
430,"North Carolina cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",23,percent,North Carolina,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
431,"North Dakota annual cooling degree days, 2025",474,CDD,North Dakota,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
432,"North Dakota annual heating degree days, 2025",8828,HDD,North Dakota,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
433,"North Dakota cooling degree day normal, 1991-2020 annual",444,CDD,North Dakota,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
434,"North Dakota heating degree day normal, 1991-2020 annual",9184,HDD,North Dakota,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
435,"North Dakota cooling degree days, January to September 2026 (preliminary)",601,CDD,North Dakota,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
436,"North Dakota cooling degree day normal, January to September, 1991-2020",444,CDD,North Dakota,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
437,"North Dakota cooling degree days, 2025 (CPC)",323,CDD,North Dakota,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
438,"North Dakota cooling degree days, January to September 2026 (CPC)",453,CDD,North Dakota,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
439,"North Dakota cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",18,percent,North Dakota,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
440,"Ohio annual cooling degree days, 2025",910,CDD,Ohio,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
441,"Ohio annual heating degree days, 2025",5760,HDD,Ohio,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
442,"Ohio cooling degree day normal, 1991-2020 annual",793,CDD,Ohio,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
443,"Ohio heating degree day normal, 1991-2020 annual",5688,HDD,Ohio,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
444,"Ohio cooling degree days, January to September 2026 (preliminary)",876,CDD,Ohio,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
445,"Ohio cooling degree day normal, January to September, 1991-2020",786,CDD,Ohio,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
446,"Ohio cooling degree days, 2025 (CPC)",848,CDD,Ohio,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
447,"Ohio cooling degree days, January to September 2026 (CPC)",871,CDD,Ohio,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
448,"Ohio cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",17,percent,Ohio,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
449,"Oklahoma annual cooling degree days, 2025",2019,CDD,Oklahoma,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
450,"Oklahoma annual heating degree days, 2025",3171,HDD,Oklahoma,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
451,"Oklahoma cooling degree day normal, 1991-2020 annual",1919,CDD,Oklahoma,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
452,"Oklahoma heating degree day normal, 1991-2020 annual",3535,HDD,Oklahoma,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
453,"Oklahoma cooling degree days, January to September 2026 (preliminary)",2617,CDD,Oklahoma,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
454,"Oklahoma cooling degree day normal, January to September, 1991-2020",1865,CDD,Oklahoma,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
455,"Oklahoma cooling degree days, 2025 (CPC)",1887,CDD,Oklahoma,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
456,"Oklahoma cooling degree days, January to September 2026 (CPC)",2467,CDD,Oklahoma,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
457,"Oklahoma cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",34,percent,Oklahoma,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
458,"Oregon annual cooling degree days, 2025",379,CDD,Oregon,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
459,"Oregon annual heating degree days, 2025",4854,HDD,Oregon,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
460,"Oregon cooling degree day normal, 1991-2020 annual",232,CDD,Oregon,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
461,"Oregon heating degree day normal, 1991-2020 annual",5268,HDD,Oregon,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
462,"Oregon cooling degree days, January to September 2026 (preliminary)",264,CDD,Oregon,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
463,"Oregon cooling degree day normal, January to September, 1991-2020",232,CDD,Oregon,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
464,"Oregon cooling degree days, 2025 (CPC)",297,CDD,Oregon,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
465,"Oregon cooling degree days, January to September 2026 (CPC)",188,CDD,Oregon,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
466,"Oregon cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",-8,percent,Oregon,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
467,"Pennsylvania annual cooling degree days, 2025",788,CDD,Pennsylvania,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
468,"Pennsylvania annual heating degree days, 2025",5721,HDD,Pennsylvania,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
469,"Pennsylvania cooling degree day normal, 1991-2020 annual",705,CDD,Pennsylvania,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
470,"Pennsylvania heating degree day normal, 1991-2020 annual",5700,HDD,Pennsylvania,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
471,"Pennsylvania cooling degree days, January to September 2026 (preliminary)",782,CDD,Pennsylvania,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
472,"Pennsylvania cooling degree day normal, January to September, 1991-2020",701,CDD,Pennsylvania,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
473,"Pennsylvania cooling degree days, 2025 (CPC)",773,CDD,Pennsylvania,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
474,"Pennsylvania cooling degree days, January to September 2026 (CPC)",823,CDD,Pennsylvania,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
475,"Pennsylvania cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",13,percent,Pennsylvania,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
476,"Rhode Island annual cooling degree days, 2025",633,CDD,Rhode Island,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
477,"Rhode Island annual heating degree days, 2025",5665,HDD,Rhode Island,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
478,"Rhode Island cooling degree day normal, 1991-2020 annual",562,CDD,Rhode Island,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
479,"Rhode Island heating degree day normal, 1991-2020 annual",5761,HDD,Rhode Island,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
480,"Rhode Island cooling degree days, January to September 2026 (preliminary)",650,CDD,Rhode Island,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
481,"Rhode Island cooling degree day normal, January to September, 1991-2020",561,CDD,Rhode Island,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
482,"Rhode Island cooling degree days, 2025 (CPC)",567,CDD,Rhode Island,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
483,"Rhode Island cooling degree days, January to September 2026 (CPC)",619,CDD,Rhode Island,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
484,"Rhode Island cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",7,percent,Rhode Island,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
485,"South Carolina annual cooling degree days, 2025",1973,CDD,South Carolina,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
486,"South Carolina annual heating degree days, 2025",2512,HDD,South Carolina,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
487,"South Carolina cooling degree day normal, 1991-2020 annual",1945,CDD,South Carolina,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
488,"South Carolina heating degree day normal, 1991-2020 annual",2586,HDD,South Carolina,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
489,"South Carolina cooling degree days, January to September 2026 (preliminary)",2118,CDD,South Carolina,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
490,"South Carolina cooling degree day normal, January to September, 1991-2020",1854,CDD,South Carolina,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
491,"South Carolina cooling degree days, 2025 (CPC)",1945,CDD,South Carolina,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
492,"South Carolina cooling degree days, January to September 2026 (CPC)",2136,CDD,South Carolina,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
493,"South Carolina cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",21,percent,South Carolina,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
494,"South Dakota annual cooling degree days, 2025",767,CDD,South Dakota,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
495,"South Dakota annual heating degree days, 2025",7159,HDD,South Dakota,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
496,"South Dakota cooling degree day normal, 1991-2020 annual",688,CDD,South Dakota,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
497,"South Dakota heating degree day normal, 1991-2020 annual",7633,HDD,South Dakota,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
498,"South Dakota cooling degree days, January to September 2026 (preliminary)",909,CDD,South Dakota,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
499,"South Dakota cooling degree day normal, January to September, 1991-2020",687,CDD,South Dakota,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
500,"South Dakota cooling degree days, 2025 (CPC)",685,CDD,South Dakota,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
501,"South Dakota cooling degree days, January to September 2026 (CPC)",837,CDD,South Dakota,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
502,"South Dakota cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",25,percent,South Dakota,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
503,"Tennessee annual cooling degree days, 2025",1575,CDD,Tennessee,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
504,"Tennessee annual heating degree days, 2025",3545,HDD,Tennessee,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
505,"Tennessee cooling degree day normal, 1991-2020 annual",1415,CDD,Tennessee,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
506,"Tennessee heating degree day normal, 1991-2020 annual",3753,HDD,Tennessee,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
507,"Tennessee cooling degree days, January to September 2026 (preliminary)",1728,CDD,Tennessee,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
508,"Tennessee cooling degree day normal, January to September, 1991-2020",1378,CDD,Tennessee,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
509,"Tennessee cooling degree days, 2025 (CPC)",1478,CDD,Tennessee,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
510,"Tennessee cooling degree days, January to September 2026 (CPC)",1693,CDD,Tennessee,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
511,"Tennessee cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",27,percent,Tennessee,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
512,"Texas annual cooling degree days, 2025",3219,CDD,Texas,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
513,"Texas annual heating degree days, 2025",1517,HDD,Texas,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
514,"Texas cooling degree day normal, 1991-2020 annual",2808,CDD,Texas,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
515,"Texas heating degree day normal, 1991-2020 annual",1820,HDD,Texas,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
516,"Texas cooling degree days, January to September 2026 (preliminary)",3193,CDD,Texas,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
517,"Texas cooling degree day normal, January to September, 1991-2020",2586,CDD,Texas,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
518,"Texas cooling degree days, 2025 (CPC)",3009,CDD,Texas,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
519,"Texas cooling degree days, January to September 2026 (CPC)",2992,CDD,Texas,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
520,"Texas cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",22,percent,Texas,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
521,"Utah annual cooling degree days, 2025",673,CDD,Utah,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
522,"Utah annual heating degree days, 2025",6172,HDD,Utah,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
523,"Utah cooling degree day normal, 1991-2020 annual",538,CDD,Utah,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
524,"Utah heating degree day normal, 1991-2020 annual",6978,HDD,Utah,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
525,"Utah cooling degree days, January to September 2026 (preliminary)",763,CDD,Utah,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
526,"Utah cooling degree day normal, January to September, 1991-2020",535,CDD,Utah,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
527,"Utah cooling degree days, 2025 (CPC)",556,CDD,Utah,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
528,"Utah cooling degree days, January to September 2026 (CPC)",702,CDD,Utah,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
529,"Utah cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",-5,percent,Utah,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
530,"Vermont annual cooling degree days, 2025",301,CDD,Vermont,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
531,"Vermont annual heating degree days, 2025",7911,HDD,Vermont,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
532,"Vermont cooling degree day normal, 1991-2020 annual",223,CDD,Vermont,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
533,"Vermont heating degree day normal, 1991-2020 annual",8059,HDD,Vermont,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
534,"Vermont cooling degree days, January to September 2026 (preliminary)",257,CDD,Vermont,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
535,"Vermont cooling degree day normal, January to September, 1991-2020",223,CDD,Vermont,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
536,"Vermont cooling degree days, 2025 (CPC)",329,CDD,Vermont,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
537,"Vermont cooling degree days, January to September 2026 (CPC)",241,CDD,Vermont,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
538,"Vermont cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",-31,percent,Vermont,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
539,"Virginia annual cooling degree days, 2025",1212,CDD,Virginia,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
540,"Virginia annual heating degree days, 2025",4154,HDD,Virginia,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
541,"Virginia cooling degree day normal, 1991-2020 annual",1129,CDD,Virginia,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
542,"Virginia heating degree day normal, 1991-2020 annual",4258,HDD,Virginia,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
543,"Virginia cooling degree days, January to September 2026 (preliminary)",1353,CDD,Virginia,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
544,"Virginia cooling degree day normal, January to September, 1991-2020",1111,CDD,Virginia,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
545,"Virginia cooling degree days, 2025 (CPC)",1208,CDD,Virginia,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
546,"Virginia cooling degree days, January to September 2026 (CPC)",1400,CDD,Virginia,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
547,"Virginia cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",28,percent,Virginia,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
548,"Washington annual cooling degree days, 2025",298,CDD,Washington,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
549,"Washington annual heating degree days, 2025",5181,HDD,Washington,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
550,"Washington cooling degree day normal, 1991-2020 annual",182,CDD,Washington,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
551,"Washington heating degree day normal, 1991-2020 annual",5610,HDD,Washington,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
552,"Washington cooling degree days, January to September 2026 (preliminary)",217,CDD,Washington,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
553,"Washington cooling degree day normal, January to September, 1991-2020",182,CDD,Washington,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
554,"Washington cooling degree days, 2025 (CPC)",218,CDD,Washington,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
555,"Washington cooling degree days, January to September 2026 (CPC)",143,CDD,Washington,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
556,"Washington cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",-9,percent,Washington,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
557,"West Virginia annual cooling degree days, 2025",949,CDD,West Virginia,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
558,"West Virginia annual heating degree days, 2025",5064,HDD,West Virginia,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
559,"West Virginia cooling degree day normal, 1991-2020 annual",802,CDD,West Virginia,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
560,"West Virginia heating degree day normal, 1991-2020 annual",5067,HDD,West Virginia,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
561,"West Virginia cooling degree days, January to September 2026 (preliminary)",952,CDD,West Virginia,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
562,"West Virginia cooling degree day normal, January to September, 1991-2020",792,CDD,West Virginia,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
563,"West Virginia cooling degree days, 2025 (CPC)",948,CDD,West Virginia,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
564,"West Virginia cooling degree days, January to September 2026 (CPC)",972,CDD,West Virginia,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
565,"West Virginia cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",24,percent,West Virginia,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
566,"Wisconsin annual cooling degree days, 2025",589,CDD,Wisconsin,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
567,"Wisconsin annual heating degree days, 2025",7344,HDD,Wisconsin,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
568,"Wisconsin cooling degree day normal, 1991-2020 annual",513,CDD,Wisconsin,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
569,"Wisconsin heating degree day normal, 1991-2020 annual",7528,HDD,Wisconsin,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
570,"Wisconsin cooling degree days, January to September 2026 (preliminary)",621,CDD,Wisconsin,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
571,"Wisconsin cooling degree day normal, January to September, 1991-2020",511,CDD,Wisconsin,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
572,"Wisconsin cooling degree days, 2025 (CPC)",596,CDD,Wisconsin,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
573,"Wisconsin cooling degree days, January to September 2026 (CPC)",604,CDD,Wisconsin,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
574,"Wisconsin cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",18,percent,Wisconsin,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
575,"Wyoming annual cooling degree days, 2025",332,CDD,Wyoming,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
576,"Wyoming annual heating degree days, 2025",7590,HDD,Wyoming,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
577,"Wyoming cooling degree day normal, 1991-2020 annual",278,CDD,Wyoming,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
578,"Wyoming heating degree day normal, 1991-2020 annual",8224,HDD,Wyoming,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
579,"Wyoming cooling degree days, January to September 2026 (preliminary)",471,CDD,Wyoming,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
580,"Wyoming cooling degree day normal, January to September, 1991-2020",278,CDD,Wyoming,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
581,"Wyoming cooling degree days, 2025 (CPC)",219,CDD,Wyoming,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
582,"Wyoming cooling degree days, January to September 2026 (CPC)",342,CDD,Wyoming,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
583,"Wyoming cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",16,percent,Wyoming,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
584,"Contiguous US annual cooling degree days, 2025",1502,CDD,Contiguous US,2025,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
585,"Contiguous US annual heating degree days, 2025",4062,HDD,Contiguous US,2025,"nClimDiv statewide heating degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-hddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide heating degree days, v1.0.0-20261006, accessed 2026-11-02"
586,"Contiguous US cooling degree day normal, 1991-2020 annual",1359,CDD,Contiguous US,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
587,"Contiguous US heating degree day normal, 1991-2020 annual",4262,HDD,Contiguous US,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of 12 monthly nClimDiv 1991-2020 averages,Not an official NCEI Normals product (normals-readme),"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
588,"Contiguous US cooling degree days, January to September 2026 (preliminary)",1524,CDD,Contiguous US,Jan-Sep 2026,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),Preliminary; revised monthly,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"
589,"Contiguous US cooling degree day normal, January to September, 1991-2020",1272,CDD,Contiguous US,1991-2020,"nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-norm-cddcst-v1.0.0-20261006,2026-11-02,1,Sum of Jan-Sep monthly averages,,"NOAA National Centers for Environmental Information, nClimDiv statewide degree-day normals (1991-2020 period code 0010), v1.0.0-20261006, accessed 2026-11-02"
590,"Contiguous US cooling degree days, 2025 (CPC)",1326,CDD,Contiguous US,2025,"Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2025/December.txt,2026-11-02,1,"Station-based regression estimates, population-weighted",Levels differ from nClimDiv,"NOAA Climate Prediction Center, Cooling degree day monthly summary, December 2025 (population-weighted state, regional and national), accessed 2026-11-02"
591,"Contiguous US cooling degree days, January to September 2026 (CPC)",1390,CDD,Contiguous US,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,"Station-based, population-weighted",Preliminary,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
592,"Contiguous US cooling degree days Jan-Sep 2026, percent deviation from normal (CPC)",15,percent,Contiguous US,Jan-Sep 2026,"Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national)",NOAA Climate Prediction Center,https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/legacy_files/cooling/statesCONUS/2026/September.txt,2026-11-02,1,CPC normal,,"NOAA Climate Prediction Center, Cooling degree day monthly summary, September 2026 (population-weighted state, regional and national), accessed 2026-11-02"
593,"Contiguous US average June to August temperature, mean of 1991-2000",71.55,degrees F,Contiguous US,1991-2000,"nClimDiv statewide average temperature, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-tmpcst-v1.0.0-20261006,2026-11-02,1,"Area-weighted nClimDiv code 110, mean of monthly values","Area-weighted, not population-weighted","NOAA National Centers for Environmental Information, nClimDiv statewide average temperature, v1.0.0-20261006, accessed 2026-11-02"
594,"Contiguous US average June to August temperature, mean of 2016-2025",73.36,degrees F,Contiguous US,2016-2025,"nClimDiv statewide average temperature, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-tmpcst-v1.0.0-20261006,2026-11-02,1,Area-weighted nClimDiv code 110,Area-weighted,"NOAA National Centers for Environmental Information, nClimDiv statewide average temperature, v1.0.0-20261006, accessed 2026-11-02"
595,"Number of climate divisions with population counts for 1990, 2000 and 2020 in the 48 contiguous states",344,divisions,Contiguous US,1990-2020,"Climate division population file, 1900 to 2020 censuses",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv_pop_1900-2020.dat,2026-11-02,1,Used as weights,Division populations are census counts allocated to divisions by NOAA,"NOAA National Centers for Environmental Information, Climate division population file, 1900 to 2020 censuses, accessed 2026-11-02"
596,Missing-value code for degree days in the latest year of nClimDiv files,-9999,code,Contiguous US,documentation,nClimDiv statewide file readme (state-readme.txt),NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/state-readme.txt,2026-11-02,1,Months not yet processed carry -9999,,"NOAA National Centers for Environmental Information, nClimDiv statewide file readme (state-readme.txt), accessed 2026-11-02"
597,Contiguous US cooling degree days January to September 2018 (previous Jan-Sep high),1478,CDD,Contiguous US,Jan-Sep 2018,"nClimDiv statewide cooling degree days, v1.0.0-20261006",NOAA National Centers for Environmental Information,https://www.ncei.noaa.gov/monitoring-content/data/us/climdiv/monthly/current/climdiv-cddcst-v1.0.0-20261006,2026-11-02,1,Population-weighted with fixed 2020 census climate-division populations (tested in scripts/04),nClimDiv values for the latest 2 calendar years are revised monthly; history changes with version changes,"NOAA National Centers for Environmental Information, nClimDiv statewide cooling degree days, v1.0.0-20261006, accessed 2026-11-02"