US states by cooling degree days

Florida had the highest cooling degree days of 48 states in 2014, at 3,443 degree days (base 65°F). Vermont had the lowest, at 180 degree days (base 65°F). The median was 736 degree days (base 65°F) and the figure for the United States was 1,298 degree days (base 65°F). Source: NOAA National Centers for Environmental Information.

Highest3,443Florida

Lowest180Vermont

Median73648 states

United States1,298History

Map of states, 2014

Under 360
360 to 530
530 to 740
740 to 1,100
1,100 to 1,800
1,800 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 cooling degree days (base 65°F), contiguous US and statewide. Boundaries: U.S. Census Bureau cartographic boundary files.

All states, 2014

degree days (base 65°F). Source: NOAA NCEI, NOAA Climate at a Glance, January to December cooling degree days (base 65°F), contiguous US and statewide. Retrieved 2026-10-12.

Full ranking

Rank	States	2014 degree days (base 65°F)	Change on 2013
1	Florida	3,443	-4.5%
2	Arizona	3,117	+1.7%
3	Texas	2,683	-2.3%
4	Louisiana	2,427	-3.7%
5	Nevada	2,267	+3.6%
6	Mississippi	1,992	-0.3%
7	South Carolina	1,869	+10.9%
8	Alabama	1,825	+6.3%
9	Oklahoma	1,814	+0.9%
10	Georgia	1,625	+10.5%
11	Arkansas	1,511	-6.8%
12	North Carolina	1,387	+9%
13	Kansas	1,341	-2.5%
14	Tennessee	1,272	+4.7%
15	California	1,173	+21.8%
16	Kentucky	1,110	+2.9%
17	Missouri	1,106	-3.4%
18	Delaware	1,018	-6.8%
19	Virginia	994	-0.5%
20	New Mexico	987	-4.7%
21	Maryland	973	-6.6%
22	Nebraska	835	-17%
23	New Jersey	752	-10.7%
24	Indiana	746	-10.3%
25	Illinois	725	-9.9%
26	West Virginia	675	-5.1%
27	Iowa	656	-18%
28	Ohio	643	-10.4%
29	Pennsylvania	579	-13.8%
30	New York	545	-12.4%
31	Idaho	540	-17.8%
32	Connecticut	529	-17.9%
33	South Dakota	518	-25.5%
34	Utah	505	-16.7%
35	Rhode Island	492	-22.3%
36	Massachusetts	444	-24.5%
37	Michigan	443	-18%
38	Wisconsin	406	-12.5%
39	Minnesota	395	-12.8%
40	North Dakota	361	-22.9%
41	Oregon	358	+39.3%
42	Washington	269	+20.6%
43	Colorado	261	-28.5%
44	New Hampshire	248	-28.9%
45	Maine	234	-10.7%
46	Wyoming	206	-40.8%
47	Montana	187	-25.5%
48	Vermont	180	-30.5%

Other periods

About this ranking

Sum over January to December of the degrees by which the daily mean temperature exceeds 65°F, a measure of cooling 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 cooling 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/8/cdd/12/12/1895-2025/data.json. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

NOAA National Centers for Environmental Information. (2026). NOAA Climate at a Glance, January to December cooling degree days (base 65°F), contiguous US and statewide (US states by cooling degree days, 2014) [Data set]. Retrieved October 12, 2026, from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/8/cdd/12/12/1895-2025/data.json

MLA 9

NOAA Climate at a Glance, January to December cooling degree days (base 65°F), contiguous US and statewide, US states by cooling 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/8/cdd/12/12/1895-2025/data.json. Invokely, https://invokely.ai/rankings/cooling-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 cooling degree days (base 65°F), contiguous US and statewide. US states by cooling degree days, 2014. Dataset. Accessed October 12, 2026. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/8/cdd/12/12/1895-2025/data.json. Also distributed by Invokely, https://invokely.ai/rankings/cooling-degree-days/us-states?period=2014.

Harvard

NOAA National Centers for Environmental Information (2026) NOAA Climate at a Glance, January to December cooling degree days (base 65°F), contiguous US and statewide, US states by cooling degree days, 2014 [Dataset]. Available at: https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/8/cdd/12/12/1895-2025/data.json, via Invokely: https://invokely.ai/rankings/cooling-degree-days/us-states?period=2014 (Accessed: 12 October 2026).

BibTeX

@misc{noaa_us_states_by_cooling_2014,
  author = {{NOAA National Centers for Environmental Information}},
  title = {{NOAA Climate at a Glance, January to December cooling degree days (base 65°F), contiguous US and statewide: US states by cooling degree days, 2014}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/8/cdd/12/12/1895-2025/data.json},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/cooling-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 cooling 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/8/cdd/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 cooling degree days (base 65°F), contiguous US and statewide: US states by cooling 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/8/cdd/12/12/1895-2025/data.json
L2  - https://invokely.ai/rankings/cooling-degree-days/us-states?period=2014
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/cooling-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 cooling 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/8/cdd/12/12/1895-2025/data.json. Retrieved 2026-10-12.
ER  -

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Questions

Which state has the highest cooling degree days?

Florida, with 3,443 degree days (base 65°F) in 2014, according to NOAA National Centers for Environmental Information.

Which state has the lowest cooling degree days?

Vermont, with 180 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 cooling degree days (base 65°F), contiguous US and statewide. Retrieved 2026-10-12.