Data / Rankings / Heating degree days / US states

US states by heating degree days

North Dakota had the highest heating degree days of 48 states in 2022, at 9,856 degree days (base 65°F). Florida had the lowest, at 526 degree days (base 65°F). The median was 5,352 degree days (base 65°F) and the figure for the United States was 4,268 degree days (base 65°F). Source: NOAA National Centers for Environmental Information.

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Highest9,856North Dakota
Lowest526Florida
Median5,35248 states
United States4,268History

Map of states, 2022

Alabama: 2,612 degree days (base 65°F)Arizona: 2,061 degree days (base 65°F)Arkansas: 3,508 degree days (base 65°F)California: 2,672 degree days (base 65°F)Colorado: 7,212 degree days (base 65°F)Connecticut: 5,627 degree days (base 65°F)Delaware: 4,481 degree days (base 65°F)Florida: 526 degree days (base 65°F)Georgia: 2,682 degree days (base 65°F)Idaho: 7,280 degree days (base 65°F)Illinois: 6,325 degree days (base 65°F)Indiana: 5,746 degree days (base 65°F)Iowa: 7,209 degree days (base 65°F)Kansas: 5,040 degree days (base 65°F)Kentucky: 4,474 degree days (base 65°F)Louisiana: 1,686 degree days (base 65°F)Maine: 7,238 degree days (base 65°F)Maryland: 4,517 degree days (base 65°F)Massachusetts: 5,708 degree days (base 65°F)Michigan: 6,708 degree days (base 65°F)Minnesota: 9,123 degree days (base 65°F)Mississippi: 2,355 degree days (base 65°F)Missouri: 5,216 degree days (base 65°F)Montana: 8,821 degree days (base 65°F)Nebraska: 6,403 degree days (base 65°F)Nevada: 3,502 degree days (base 65°F)New Hampshire: 7,065 degree days (base 65°F)New Jersey: 5,082 degree days (base 65°F)New Mexico: 4,584 degree days (base 65°F)New York: 5,849 degree days (base 65°F)North Carolina: 3,286 degree days (base 65°F)North Dakota: 9,856 degree days (base 65°F)Ohio: 5,698 degree days (base 65°F)Oklahoma: 3,669 degree days (base 65°F)Oregon: 5,291 degree days (base 65°F)Pennsylvania: 5,707 degree days (base 65°F)Rhode Island: 5,413 degree days (base 65°F)South Carolina: 2,502 degree days (base 65°F)South Dakota: 7,954 degree days (base 65°F)Tennessee: 3,820 degree days (base 65°F)Texas: 1,949 degree days (base 65°F)Utah: 7,019 degree days (base 65°F)Vermont: 7,715 degree days (base 65°F)Virginia: 4,233 degree days (base 65°F)Washington: 5,788 degree days (base 65°F)West Virginia: 5,190 degree days (base 65°F)Wisconsin: 7,747 degree days (base 65°F)Wyoming: 8,441 degree days (base 65°F)
  • Under 2,700
  • 2,700 to 4,500
  • 4,500 to 5,400
  • 5,400 to 6,000
  • 6,000 to 7,200
  • 7,200 and over
  • No data
degree days (base 65°F), 2022. Hatched areas have no value for this period. Source: NOAA NCEI, NOAA Climate at a Glance, January to December heating degree days (base 65°F), contiguous US and statewide. Boundaries: U.S. Census Bureau cartographic boundary files.

All states, 2022

North Dakota: 9,856 degree days (base 65°F)North Dakota9,856Minnesota: 9,123 degree days (base 65°F)Minnesota9,123Montana: 8,821 degree days (base 65°F)Montana8,821Wyoming: 8,441 degree days (base 65°F)Wyoming8,441South Dakota: 7,954 degree days (base 65°F)South Dakota7,954Wisconsin: 7,747 degree days (base 65°F)Wisconsin7,747Vermont: 7,715 degree days (base 65°F)Vermont7,715Idaho: 7,280 degree days (base 65°F)Idaho7,280Maine: 7,238 degree days (base 65°F)Maine7,238Colorado: 7,212 degree days (base 65°F)Colorado7,212Iowa: 7,209 degree days (base 65°F)Iowa7,209New Hampshire: 7,065 degree days (base 65°F)New Hampshire7,065Utah: 7,019 degree days (base 65°F)Utah7,019Michigan: 6,708 degree days (base 65°F)Michigan6,708Nebraska: 6,403 degree days (base 65°F)Nebraska6,403Illinois: 6,325 degree days (base 65°F)Illinois6,325New York: 5,849 degree days (base 65°F)New York5,849Washington: 5,788 degree days (base 65°F)Washington5,788Indiana: 5,746 degree days (base 65°F)Indiana5,746Massachusetts: 5,708 degree days (base 65°F)Massachusetts5,708Pennsylvania: 5,707 degree days (base 65°F)Pennsylvania5,707Ohio: 5,698 degree days (base 65°F)Ohio5,698Connecticut: 5,627 degree days (base 65°F)Connecticut5,627Rhode Island: 5,413 degree days (base 65°F)Rhode Island5,413Oregon: 5,291 degree days (base 65°F)Oregon5,291Missouri: 5,216 degree days (base 65°F)Missouri5,216West Virginia: 5,190 degree days (base 65°F)West Virginia5,190New Jersey: 5,082 degree days (base 65°F)New Jersey5,082Kansas: 5,040 degree days (base 65°F)Kansas5,040New Mexico: 4,584 degree days (base 65°F)New Mexico4,584Maryland: 4,517 degree days (base 65°F)Maryland4,517Delaware: 4,481 degree days (base 65°F)Delaware4,481Kentucky: 4,474 degree days (base 65°F)Kentucky4,474Virginia: 4,233 degree days (base 65°F)Virginia4,233Tennessee: 3,820 degree days (base 65°F)Tennessee3,820Oklahoma: 3,669 degree days (base 65°F)Oklahoma3,669Arkansas: 3,508 degree days (base 65°F)Arkansas3,508Nevada: 3,502 degree days (base 65°F)Nevada3,502North Carolina: 3,286 degree days (base 65°F)North Carolina3,286Georgia: 2,682 degree days (base 65°F)Georgia2,682California: 2,672 degree days (base 65°F)California2,672Alabama: 2,612 degree days (base 65°F)Alabama2,612South Carolina: 2,502 degree days (base 65°F)South Carolina2,502Mississippi: 2,355 degree days (base 65°F)Mississippi2,355Arizona: 2,061 degree days (base 65°F)Arizona2,061Texas: 1,949 degree days (base 65°F)Texas1,949Louisiana: 1,686 degree days (base 65°F)Louisiana1,686Florida: 526 degree days (base 65°F)Florida526North Dakota: 9,856 degree days (base 65°F)North Dakota9,856Minnesota: 9,123 degree days (base 65°F)Minnesota9,123Montana: 8,821 degree days (base 65°F)Montana8,821Wyoming: 8,441 degree days (base 65°F)Wyoming8,441South Dakota: 7,954 degree days (base 65°F)South Dakota7,954Wisconsin: 7,747 degree days (base 65°F)Wisconsin7,747Vermont: 7,715 degree days (base 65°F)Vermont7,715Idaho: 7,280 degree days (base 65°F)Idaho7,280Maine: 7,238 degree days (base 65°F)Maine7,238Colorado: 7,212 degree days (base 65°F)Colorado7,212Iowa: 7,209 degree days (base 65°F)Iowa7,209New Hampshire: 7,065 degree days (base 65°F)New Hampshire7,065Utah: 7,019 degree days (base 65°F)Utah7,019Michigan: 6,708 degree days (base 65°F)Michigan6,708Nebraska: 6,403 degree days (base 65°F)Nebraska6,403Illinois: 6,325 degree days (base 65°F)Illinois6,325New York: 5,849 degree days (base 65°F)New York5,849Washington: 5,788 degree days (base 65°F)Washington5,788Indiana: 5,746 degree days (base 65°F)Indiana5,746Massachusetts: 5,708 degree days (base 65°F)Massachusetts5,708Pennsylvania: 5,707 degree days (base 65°F)Pennsylvania5,707Ohio: 5,698 degree days (base 65°F)Ohio5,698Connecticut: 5,627 degree days (base 65°F)Connecticut5,627Rhode Island: 5,413 degree days (base 65°F)Rhode Island5,413Oregon: 5,291 degree days (base 65°F)Oregon5,291Missouri: 5,216 degree days (base 65°F)Missouri5,216West Virginia: 5,190 degree days (base 65°F)West Virginia5,190New Jersey: 5,082 degree days (base 65°F)New Jersey5,082Kansas: 5,040 degree days (base 65°F)Kansas5,040New Mexico: 4,584 degree days (base 65°F)New Mexico4,584Maryland: 4,517 degree days (base 65°F)Maryland4,517Delaware: 4,481 degree days (base 65°F)Delaware4,481Kentucky: 4,474 degree days (base 65°F)Kentucky4,474Virginia: 4,233 degree days (base 65°F)Virginia4,233Tennessee: 3,820 degree days (base 65°F)Tennessee3,820Oklahoma: 3,669 degree days (base 65°F)Oklahoma3,669Arkansas: 3,508 degree days (base 65°F)Arkansas3,508Nevada: 3,502 degree days (base 65°F)Nevada3,502North Carolina: 3,286 degree days (base 65°F)North Carolina3,286Georgia: 2,682 degree days (base 65°F)Georgia2,682California: 2,672 degree days (base 65°F)California2,672Alabama: 2,612 degree days (base 65°F)Alabama2,612South Carolina: 2,502 degree days (base 65°F)South Carolina2,502Mississippi: 2,355 degree days (base 65°F)Mississippi2,355Arizona: 2,061 degree days (base 65°F)Arizona2,061Texas: 1,949 degree days (base 65°F)Texas1,949Louisiana: 1,686 degree days (base 65°F)Louisiana1,686Florida: 526 degree days (base 65°F)Florida526
degree days (base 65°F). Source: NOAA NCEI, NOAA Climate at a Glance, January to December heating degree days (base 65°F), contiguous US and statewide. Retrieved 2026-10-12.

Full ranking

RankStates2022
degree days (base 65°F)		Change on 2021
1North Dakota9,856+17.7%
2Minnesota9,123+16.6%
3Montana8,821+7.5%
4Wyoming8,441+7.3%
5South Dakota7,954+13%
6Wisconsin7,747+11.7%
7Vermont7,715+3.9%
8Idaho7,280+12.4%
9Maine7,238+4%
10Colorado7,212+7.3%
11Iowa7,209+13.5%
12New Hampshire7,065+4.1%
13Utah7,019+7.1%
14Michigan6,708+10.3%
15Nebraska6,403+9.9%
16Illinois6,325+11.3%
17New York5,849+6%
18Washington5,788+4.1%
19Indiana5,746+9%
20Massachusetts5,708+3.5%
21Pennsylvania5,707+9.1%
22Ohio5,698+9.3%
23Connecticut5,627+4%
24Rhode Island5,413+3.7%
25Oregon5,291+4.4%
26Missouri5,216+12.3%
27West Virginia5,190+9.1%
28New Jersey5,082+6.8%
29Kansas5,040+11.2%
30New Mexico4,584+9.5%
31Maryland4,517+8.6%
32Delaware4,481+7.6%
33Kentucky4,474+7.4%
34Virginia4,233+7.8%
35Tennessee3,820+9%
36Oklahoma3,669+9.7%
37Arkansas3,508+7.8%
38Nevada3,502+6.6%
39North Carolina3,286+5.9%
40Georgia2,682+7.2%
41California2,672-0.6%
42Alabama2,612+9%
43South Carolina2,502+5.4%
44Mississippi2,355+8.9%
45Arizona2,061+19.6%
46Texas1,949+18.6%
47Louisiana1,686+11.7%
48Florida526+4.2%

Other periods

About this ranking

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).

NOAA publishes these for operational monitoring; they can differ from official degree day publications.

Every value in the ranking comes from the same publisher and the same period, so the states are compared on one definition. Equal values share a rank.

How to cite

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.

Citation styles

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APA 7

NOAA National Centers for Environmental Information. (2026). NOAA Climate at a Glance, January to December heating degree days (base 65°F), contiguous US and statewide (US states by heating degree days, 2022) [Data set]. Retrieved October 12, 2026, from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/32/hdd/12/12/1895-2025/data.json

MLA 9

NOAA Climate at a Glance, January to December heating degree days (base 65°F), contiguous US and statewide, US states by heating degree days, 2022. NOAA National Centers for Environmental Information, 6 Oct. 2026, https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/32/hdd/12/12/1895-2025/data.json. Invokely, https://invokely.ai/rankings/heating-degree-days/us-states?period=2022. Accessed 12 Oct. 2026.

Chicago (author-date)

NOAA National Centers for Environmental Information. 2026. NOAA Climate at a Glance, January to December heating degree days (base 65°F), contiguous US and statewide. US states by heating degree days, 2022. Dataset. Accessed October 12, 2026. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/32/hdd/12/12/1895-2025/data.json. Also distributed by Invokely, https://invokely.ai/rankings/heating-degree-days/us-states?period=2022.

Harvard

NOAA National Centers for Environmental Information (2026) NOAA Climate at a Glance, January to December heating degree days (base 65°F), contiguous US and statewide, US states by heating degree days, 2022 [Dataset]. Available at: https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/32/hdd/12/12/1895-2025/data.json, via Invokely: https://invokely.ai/rankings/heating-degree-days/us-states?period=2022 (Accessed: 12 October 2026).

BibTeX
@misc{noaa_us_states_by_heating_2022,
  author = {{NOAA National Centers for Environmental Information}},
  title = {{NOAA Climate at a Glance, January to December heating degree days (base 65°F), contiguous US and statewide: US states by heating degree days, 2022}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/32/hdd/12/12/1895-2025/data.json},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/heating-degree-days/us-states?period=2022. Publisher attribution: 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.},
}
RIS
TY  - DATA
AU  - NOAA National Centers for Environmental Information
TI  - NOAA Climate at a Glance, January to December heating degree days (base 65°F), contiguous US and statewide: US states by heating degree days, 2022
PY  - 2026
DA  - 2026/10/06
PB  - NOAA National Centers for Environmental Information
DB  - Invokely
UR  - https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/32/hdd/12/12/1895-2025/data.json
L2  - https://invokely.ai/rankings/heating-degree-days/us-states?period=2022
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/heating-degree-days/us-states?period=2022.
N1  - Publisher attribution: 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.
ER  -
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Rank US states by heating degree days using official data, and cite the source.
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Questions

Which state has the highest heating degree days?

North Dakota, with 9,856 degree days (base 65°F) in 2022, according to NOAA National Centers for Environmental Information.

Which state has the lowest heating degree days?

Florida, with 526 degree days (base 65°F) in 2022.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: NOAA National Centers for Environmental Information, NOAA Climate at a Glance, January to December heating degree days (base 65°F), contiguous US and statewide. Retrieved 2026-10-12.

US states: more rankings