# US states by heating degree days, 2025

All 48 values come from NOAA National Centers for Environmental Information for 2025, so the places are comparable.

- Indicator id: `heating_degree_days_annual`
- Unit: degree days (base 65°F)
- Definition: Sum over January to December of the degrees by which the daily mean temperature falls below 65°F, a measure of heating demand. NOAA estimates monthly values from nClimDiv temperatures and weights areas by population (2010 Census).
- Source: NOAA National Centers for Environmental Information, NOAA Climate at a Glance, January to December heating degree days (base 65°F), contiguous US and statewide (https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/32/hdd/12/12/1895-2025/data.json)
- Publisher page: https://invokely.ai/en/publishers/noaa-ncei
- Retrieved: 2026-10-12
- Citation: NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December heating degree days (base 65°F), contiguous US and statewide. From the NOAA Monthly U.S. Climate Divisional Database (nClimDiv), doi:10.7289/V5M32STR. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/32/hdd/12/12/1895-2025/data.json. Retrieved 2026-10-12.
- Web page: https://invokely.ai/rankings/heating-degree-days/us-states

| Rank | Place | degree days (base 65°F) |
|---:|---|---:|
| 1 | North Dakota | 8,828 |
| 2 | Minnesota | 8,152 |
| 3 | Montana | 8,014 |
| 4 | Vermont | 7,911 |
| 5 | Maine | 7,662 |
| 6 | Wyoming | 7,590 |
| 7 | New Hampshire | 7,368 |
| 8 | Wisconsin | 7,344 |
| 9 | South Dakota | 7,159 |
| 10 | Michigan | 6,634 |
| 11 | Colorado | 6,554 |
| 12 | Iowa | 6,444 |
| 13 | Idaho | 6,232 |
| 14 | Utah | 6,172 |
| 15 | Massachusetts | 6,056 |
| 16 | New York | 5,920 |
| 17 | Illinois | 5,896 |
| 18 | Nebraska | 5,808 |
| 19 | Connecticut | 5,765 |
| 20 | Ohio | 5,760 |
| 21 | Pennsylvania | 5,721 |
| 22 | Rhode Island | 5,665 |
| 23 | Indiana | 5,589 |
| 24 | Washington | 5,181 |
| 25 | New Jersey | 5,159 |
| 26 | West Virginia | 5,064 |
| 27 | Oregon | 4,854 |
| 28 | Missouri | 4,680 |
| 29 | Kansas | 4,617 |
| 30 | Delaware | 4,547 |
| 31 | Maryland | 4,519 |
| 32 | Kentucky | 4,267 |
| 33 | Virginia | 4,154 |
| 34 | New Mexico | 3,957 |
| 35 | Tennessee | 3,545 |
| 36 | North Carolina | 3,270 |
| 37 | Oklahoma | 3,171 |
| 38 | Arkansas | 3,048 |
| 39 | Nevada | 2,916 |
| 40 | Georgia | 2,627 |
| 41 | California | 2,518 |
| 42 | South Carolina | 2,512 |
| 43 | Alabama | 2,505 |
| 44 | Mississippi | 2,104 |
| 45 | Arizona | 1,563 |
| 46 | Texas | 1,517 |
| 47 | Louisiana | 1,442 |
| 48 | Florida | 614 |