Rank (% change),State,Avg CDD 1991-2000,Avg CDD 2016-2025,Added CDD per year,Change (%),Rank (added CDD)
1,Vermont,181.4,286.9,105.5,58.2,44
2,Oregon,205.5,313.2,107.7,52.4,43
3,Washington,161.3,244.0,82.7,51.3,47
4,New Hampshire,251.6,380.0,128.4,51.0,38
5,Massachusetts,440.6,633.4,192.8,43.8,20
6,Colorado,272.1,384.2,112.1,41.2,42
7,Maine,211.0,298.0,87.0,41.2,46
8,Montana,168.0,236.3,68.3,40.7,48
9,Wyoming,232.2,323.8,91.6,39.4,45
10,Idaho,422.6,582.2,159.6,37.8,33
11,Rhode Island,485.1,666.4,181.3,37.4,29
12,Utah,471.6,644.0,172.4,36.6,30
13,New York,534.2,723.2,189.0,35.4,22
14,Connecticut,530.8,716.9,186.1,35.1,25
15,New Jersey,744.4,991.2,246.8,33.2,11
16,Michigan,511.2,679.0,167.8,32.8,31
17,Pennsylvania,623.2,809.7,186.5,29.9,24
18,Minnesota,403.6,524.0,120.4,29.8,39
19,North Dakota,401.5,520.1,118.6,29.5,40
20,California,830.5,1075.0,244.5,29.4,12
21,New Mexico,908.2,1169.4,261.2,28.8,7
22,South Dakota,615.6,773.8,158.2,25.7,34
23,Ohio,721.7,904.8,183.1,25.4,27
24,Delaware,1003.0,1254.8,251.8,25.1,9
25,Wisconsin,465.8,579.8,114.0,24.5,41
26,West Virginia,739.8,905.2,165.4,22.4,32
27,Maryland,1031.2,1259.1,227.9,22.1,15
28,Virginia,1033.5,1251.3,217.8,21.1,17
29,Iowa,752.7,909.7,157.0,20.9,35
30,Nebraska,919.3,1107.4,188.1,20.5,23
31,Illinois,836.5,984.7,148.2,17.7,36
32,North Carolina,1361.9,1590.8,228.9,16.8,14
33,Indiana,854.8,997.2,142.4,16.7,37
34,Kentucky,1147.6,1338.3,190.7,16.6,21
35,Missouri,1186.7,1384.2,197.5,16.6,19
36,Tennessee,1323.6,1535.1,211.5,16.0,18
37,Nevada,2021.5,2343.3,321.8,15.9,5
38,Georgia,1624.2,1872.4,248.2,15.3,10
39,Texas,2691.2,3091.6,400.4,14.9,2
40,Mississippi,2098.6,2397.8,299.2,14.3,6
41,Florida,3448.0,3926.0,478.0,13.9,1
42,Alabama,1853.8,2108.6,254.8,13.7,8
43,Louisiana,2589.4,2941.2,351.8,13.6,4
44,Kansas,1373.4,1558.8,185.4,13.5,26
45,South Carolina,1829.6,2066.9,237.3,13.0,13
46,Arizona,2899.1,3267.2,368.1,12.7,3
47,Oklahoma,1831.5,2056.5,225.0,12.3,16
48,Arkansas,1700.2,1882.2,182.0,10.7,28
,Contiguous US,1269.8,1507.7,237.9,18.7,