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 2014, at 9,812 degree days (base 65°F). Florida had the lowest, at 722 degree days (base 65°F). The median was 5,665 degree days (base 65°F) and the figure for the United States was 4,535 degree days (base 65°F). Source: NOAA National Centers for Environmental Information.

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Highest9,812North Dakota
Lowest722Florida
Median5,66548 states
United States4,535History

Map of states, 2014

Alabama: 3,134 degree days (base 65°F)Arizona: 1,578 degree days (base 65°F)Arkansas: 3,974 degree days (base 65°F)California: 2,095 degree days (base 65°F)Colorado: 7,155 degree days (base 65°F)Connecticut: 6,205 degree days (base 65°F)Delaware: 4,911 degree days (base 65°F)Florida: 722 degree days (base 65°F)Georgia: 3,191 degree days (base 65°F)Idaho: 6,491 degree days (base 65°F)Illinois: 7,164 degree days (base 65°F)Indiana: 6,563 degree days (base 65°F)Iowa: 7,744 degree days (base 65°F)Kansas: 5,334 degree days (base 65°F)Kentucky: 5,017 degree days (base 65°F)Louisiana: 2,088 degree days (base 65°F)Maine: 7,954 degree days (base 65°F)Maryland: 5,079 degree days (base 65°F)Massachusetts: 6,398 degree days (base 65°F)Michigan: 7,670 degree days (base 65°F)Minnesota: 9,627 degree days (base 65°F)Mississippi: 2,877 degree days (base 65°F)Missouri: 5,700 degree days (base 65°F)Montana: 8,613 degree days (base 65°F)Nebraska: 6,694 degree days (base 65°F)Nevada: 2,912 degree days (base 65°F)New Hampshire: 7,795 degree days (base 65°F)New Jersey: 5,630 degree days (base 65°F)New Mexico: 4,293 degree days (base 65°F)New York: 6,379 degree days (base 65°F)North Carolina: 3,716 degree days (base 65°F)North Dakota: 9,812 degree days (base 65°F)Ohio: 6,450 degree days (base 65°F)Oklahoma: 3,949 degree days (base 65°F)Oregon: 4,740 degree days (base 65°F)Pennsylvania: 6,290 degree days (base 65°F)Rhode Island: 6,021 degree days (base 65°F)South Carolina: 2,938 degree days (base 65°F)South Dakota: 8,178 degree days (base 65°F)Tennessee: 4,284 degree days (base 65°F)Texas: 2,088 degree days (base 65°F)Utah: 6,510 degree days (base 65°F)Vermont: 8,403 degree days (base 65°F)Virginia: 4,709 degree days (base 65°F)Washington: 5,256 degree days (base 65°F)West Virginia: 5,616 degree days (base 65°F)Wisconsin: 8,679 degree days (base 65°F)Wyoming: 8,245 degree days (base 65°F)
  • Under 3,100
  • 3,100 to 4,700
  • 4,700 to 5,700
  • 5,700 to 6,500
  • 6,500 to 7,800
  • 7,800 and over
  • No data
degree days (base 65°F), 2014. 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, 2014

North Dakota: 9,812 degree days (base 65°F)North Dakota9,812Minnesota: 9,627 degree days (base 65°F)Minnesota9,627Wisconsin: 8,679 degree days (base 65°F)Wisconsin8,679Montana: 8,613 degree days (base 65°F)Montana8,613Vermont: 8,403 degree days (base 65°F)Vermont8,403Wyoming: 8,245 degree days (base 65°F)Wyoming8,245South Dakota: 8,178 degree days (base 65°F)South Dakota8,178Maine: 7,954 degree days (base 65°F)Maine7,954New Hampshire: 7,795 degree days (base 65°F)New Hampshire7,795Iowa: 7,744 degree days (base 65°F)Iowa7,744Michigan: 7,670 degree days (base 65°F)Michigan7,670Illinois: 7,164 degree days (base 65°F)Illinois7,164Colorado: 7,155 degree days (base 65°F)Colorado7,155Nebraska: 6,694 degree days (base 65°F)Nebraska6,694Indiana: 6,563 degree days (base 65°F)Indiana6,563Utah: 6,510 degree days (base 65°F)Utah6,510Idaho: 6,491 degree days (base 65°F)Idaho6,491Ohio: 6,450 degree days (base 65°F)Ohio6,450Massachusetts: 6,398 degree days (base 65°F)Massachusetts6,398New York: 6,379 degree days (base 65°F)New York6,379Pennsylvania: 6,290 degree days (base 65°F)Pennsylvania6,290Connecticut: 6,205 degree days (base 65°F)Connecticut6,205Rhode Island: 6,021 degree days (base 65°F)Rhode Island6,021Missouri: 5,700 degree days (base 65°F)Missouri5,700New Jersey: 5,630 degree days (base 65°F)New Jersey5,630West Virginia: 5,616 degree days (base 65°F)West Virginia5,616Kansas: 5,334 degree days (base 65°F)Kansas5,334Washington: 5,256 degree days (base 65°F)Washington5,256Maryland: 5,079 degree days (base 65°F)Maryland5,079Kentucky: 5,017 degree days (base 65°F)Kentucky5,017Delaware: 4,911 degree days (base 65°F)Delaware4,911Oregon: 4,740 degree days (base 65°F)Oregon4,740Virginia: 4,709 degree days (base 65°F)Virginia4,709New Mexico: 4,293 degree days (base 65°F)New Mexico4,293Tennessee: 4,284 degree days (base 65°F)Tennessee4,284Arkansas: 3,974 degree days (base 65°F)Arkansas3,974Oklahoma: 3,949 degree days (base 65°F)Oklahoma3,949North Carolina: 3,716 degree days (base 65°F)North Carolina3,716Georgia: 3,191 degree days (base 65°F)Georgia3,191Alabama: 3,134 degree days (base 65°F)Alabama3,134South Carolina: 2,938 degree days (base 65°F)South Carolina2,938Nevada: 2,912 degree days (base 65°F)Nevada2,912Mississippi: 2,877 degree days (base 65°F)Mississippi2,877California: 2,095 degree days (base 65°F)California2,095Louisiana: 2,088 degree days (base 65°F)Louisiana2,088Texas: 2,088 degree days (base 65°F)Texas2,088Arizona: 1,578 degree days (base 65°F)Arizona1,578Florida: 722 degree days (base 65°F)Florida722North Dakota: 9,812 degree days (base 65°F)North Dakota9,812Minnesota: 9,627 degree days (base 65°F)Minnesota9,627Wisconsin: 8,679 degree days (base 65°F)Wisconsin8,679Montana: 8,613 degree days (base 65°F)Montana8,613Vermont: 8,403 degree days (base 65°F)Vermont8,403Wyoming: 8,245 degree days (base 65°F)Wyoming8,245South Dakota: 8,178 degree days (base 65°F)South Dakota8,178Maine: 7,954 degree days (base 65°F)Maine7,954New Hampshire: 7,795 degree days (base 65°F)New Hampshire7,795Iowa: 7,744 degree days (base 65°F)Iowa7,744Michigan: 7,670 degree days (base 65°F)Michigan7,670Illinois: 7,164 degree days (base 65°F)Illinois7,164Colorado: 7,155 degree days (base 65°F)Colorado7,155Nebraska: 6,694 degree days (base 65°F)Nebraska6,694Indiana: 6,563 degree days (base 65°F)Indiana6,563Utah: 6,510 degree days (base 65°F)Utah6,510Idaho: 6,491 degree days (base 65°F)Idaho6,491Ohio: 6,450 degree days (base 65°F)Ohio6,450Massachusetts: 6,398 degree days (base 65°F)Massachusetts6,398New York: 6,379 degree days (base 65°F)New York6,379Pennsylvania: 6,290 degree days (base 65°F)Pennsylvania6,290Connecticut: 6,205 degree days (base 65°F)Connecticut6,205Rhode Island: 6,021 degree days (base 65°F)Rhode Island6,021Missouri: 5,700 degree days (base 65°F)Missouri5,700New Jersey: 5,630 degree days (base 65°F)New Jersey5,630West Virginia: 5,616 degree days (base 65°F)West Virginia5,616Kansas: 5,334 degree days (base 65°F)Kansas5,334Washington: 5,256 degree days (base 65°F)Washington5,256Maryland: 5,079 degree days (base 65°F)Maryland5,079Kentucky: 5,017 degree days (base 65°F)Kentucky5,017Delaware: 4,911 degree days (base 65°F)Delaware4,911Oregon: 4,740 degree days (base 65°F)Oregon4,740Virginia: 4,709 degree days (base 65°F)Virginia4,709New Mexico: 4,293 degree days (base 65°F)New Mexico4,293Tennessee: 4,284 degree days (base 65°F)Tennessee4,284Arkansas: 3,974 degree days (base 65°F)Arkansas3,974Oklahoma: 3,949 degree days (base 65°F)Oklahoma3,949North Carolina: 3,716 degree days (base 65°F)North Carolina3,716Georgia: 3,191 degree days (base 65°F)Georgia3,191Alabama: 3,134 degree days (base 65°F)Alabama3,134South Carolina: 2,938 degree days (base 65°F)South Carolina2,938Nevada: 2,912 degree days (base 65°F)Nevada2,912Mississippi: 2,877 degree days (base 65°F)Mississippi2,877California: 2,095 degree days (base 65°F)California2,095Louisiana: 2,088 degree days (base 65°F)Louisiana2,088Texas: 2,088 degree days (base 65°F)Texas2,088Arizona: 1,578 degree days (base 65°F)Arizona1,578Florida: 722 degree days (base 65°F)Florida722
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

RankStates2014
degree days (base 65°F)		Change on 2013
1North Dakota9,812-2.3%
2Minnesota9,627+2.7%
3Wisconsin8,679+6%
4Montana8,613+0.5%
5Vermont8,403+4.6%
6Wyoming8,245-3.2%
7South Dakota8,178-1.3%
8Maine7,954+2.7%
9New Hampshire7,795+4.4%
10Iowa7,744+4.5%
11Michigan7,670+9.4%
12Illinois7,164+8.3%
13Colorado7,155-4.3%
14Nebraska6,694-0.4%
15Indiana6,563+10.1%
16Utah6,510-13%
17Idaho6,491-9.7%
18Ohio6,450+9.3%
19Massachusetts6,398+3.7%
20New York6,379+4.9%
21Pennsylvania6,290+7.9%
22Connecticut6,205+4.6%
23Rhode Island6,021+3.3%
24Missouri5,700+4.4%
25New Jersey5,630+7.1%
26West Virginia5,616+6.4%
27Kansas5,334-0.9%
28Washington5,256-8.6%
29Maryland5,079+7.9%
30Kentucky5,017+6.8%
31Delaware4,911+7.3%
32Oregon4,740-12.5%
33Virginia4,709+6.2%
34New Mexico4,293-10.4%
35Tennessee4,284+6%
36Arkansas3,974+6.1%
37Oklahoma3,949-1.3%
38North Carolina3,716+5.2%
39Georgia3,191+8.2%
40Alabama3,134+10.9%
41South Carolina2,938+8.5%
42Nevada2,912-19.8%
43Mississippi2,877+10.6%
44California2,095-22.8%
45Louisiana2,088+15.6%
45Texas2,088+3.7%
47Arizona1,578-23.5%
48Florida722+32.2%

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, 2014) [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, 2014. 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=2014. 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, 2014. 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=2014.

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, 2014 [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=2014 (Accessed: 12 October 2026).

BibTeX
@misc{noaa_us_states_by_heating_2014,
  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, 2014}},
  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=2014. 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, 2014
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=2014
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/heating-degree-days/us-states?period=2014.
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 9,812 degree days (base 65°F) in 2014, according to NOAA National Centers for Environmental Information.

Which state has the lowest heating degree days?

Florida, with 722 degree days (base 65°F) in 2014.

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