State,CDD 2025,CDD normal 1991-2020,2025 vs normal (%),HDD 2025,HDD normal 1991-2020,HDD 2025 vs normal (%),CDD Jan-Sep 2026 (prelim.),Jan-Sep normal,2026 YTD vs normal (%)
Colorado,348,328,6.1,6554,7053,-7.1,567,328,72.9
Wyoming,332,278,19.4,7590,8224,-7.7,471,278,69.4
Montana,237,195,21.5,8014,8549,-6.3,290,195,48.7
New Mexico,1145,1002,14.3,3957,4462,-11.3,1474,995,48.1
Utah,673,538,25.1,6172,6978,-11.6,763,535,42.6
Oklahoma,2019,1919,5.2,3171,3535,-10.3,2617,1865,40.3
Arkansas,1990,1763,12.9,3048,3393,-10.2,2320,1712,35.5
North Dakota,474,444,6.8,8828,9184,-3.9,601,444,35.4
Idaho,627,488,28.5,6232,6869,-9.3,654,488,34.0
Minnesota,522,455,14.7,8152,8534,-4.5,602,455,32.3
South Dakota,767,688,11.5,7159,7633,-6.2,909,687,32.3
Maine,282,239,18.0,7662,7759,-1.3,313,239,31.0
Kansas,1488,1457,2.1,4617,4878,-5.4,1873,1436,30.4
Missouri,1413,1265,11.7,4680,4980,-6.0,1616,1246,29.7
California,948,930,1.9,2518,2814,-10.5,1118,878,27.3
Tennessee,1575,1415,11.3,3545,3753,-5.5,1728,1378,25.4
Mississippi,2510,2181,15.1,2104,2388,-11.9,2548,2060,23.7
Kentucky,1400,1227,14.1,4267,4396,-2.9,1488,1204,23.6
Texas,3219,2808,14.6,1517,1820,-16.6,3193,2586,23.5
Nebraska,1096,995,10.2,5808,6281,-7.5,1220,989,23.4
Arizona,3330,3063,8.7,1563,1919,-18.6,3484,2838,22.8
Nevada,2339,2166,8.0,2916,3451,-15.5,2537,2073,22.4
Virginia,1212,1129,7.4,4154,4258,-2.4,1353,1111,21.8
Iowa,953,809,17.8,6444,6821,-5.5,976,803,21.5
Wisconsin,589,513,14.8,7344,7528,-2.4,621,511,21.5
New Hampshire,386,300,28.7,7368,7449,-1.1,364,300,21.3
West Virginia,949,802,18.3,5064,5067,-0.1,952,792,20.2
Washington,298,182,63.7,5181,5610,-7.6,217,182,19.2
North Carolina,1533,1470,4.3,3270,3359,-2.6,1693,1427,18.6
Alabama,2092,1946,7.5,2505,2669,-6.1,2168,1848,17.3
Georgia,1831,1726,6.1,2627,2807,-6.4,1929,1648,17.1
Louisiana,3033,2695,12.5,1442,1652,-12.7,2890,2476,16.7
Delaware,1171,1140,2.7,4547,4482,1.5,1304,1123,16.1
Rhode Island,633,562,12.6,5665,5761,-1.7,650,561,15.9
Michigan,670,580,15.5,6634,6745,-1.6,665,577,15.3
Vermont,301,223,35.0,7911,8059,-1.8,257,223,15.2
Illinois,1038,888,16.9,5896,6104,-3.4,1011,880,14.9
Massachusetts,587,517,13.5,6056,6134,-1.3,593,516,14.9
Indiana,1041,912,14.1,5589,5627,-0.7,1030,902,14.2
South Carolina,1973,1945,1.4,2512,2586,-2.9,2118,1854,14.2
Oregon,379,232,63.4,4854,5268,-7.9,264,232,13.8
New Jersey,926,858,7.9,5159,5168,-0.2,963,851,13.2
Maryland,1209,1140,6.1,4519,4564,-1.0,1269,1125,12.8
Pennsylvania,788,705,11.8,5721,5700,0.4,782,701,11.6
Ohio,910,793,14.8,5760,5688,1.3,876,786,11.5
Florida,3882,3581,8.4,614,645,-4.8,3303,2975,11.0
New York,716,619,15.7,5920,6000,-1.3,665,616,8.0
Connecticut,695,606,14.7,5765,5849,-1.4,641,605,6.0
Contiguous US,1502,1359,10.5,4062,4262,-4.7,1524,1272,19.8