Cooling degree days in Colorado

Cooling degree days in Colorado was 348 degree days (base 65°F) in 2025, according to NOAA National Centers for Environmental Information. That is down 18.9% from 2024. That is the 43rd highest of 48 states in 2025.

2025, degree days (base 65°F)348

Change on 2024-18.9%

Rank43rd of 48US states ranked

Series high4982012

Series low781915

Next release: Wednesday, 6 October 2027, estimated by Invokely from past publication dates (low confidence), not announced by the publisher. Release calendar

Cooling degree days in Colorado, 1895 to 2025

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, published 2026-10-06.

All 131 values

Period	degree days (base 65°F)
2025	348
2024	429
2023	298
2022	444
2021	428
2020	452
2019	372
2018	395
2017	318
2016	358
2015	338
2014	261
2013	365
2012	498
2011	424
2010	351
2009	186
2008	297
2007	405
2006	374
2005	330
2004	159
2003	412
2002	445
2001	398
2000	418
1999	266
1998	319
1997	262
1996	272
1995	264
1994	366
1993	168
1992	141
1991	245
1990	267
1989	247
1988	340
1987	239
1986	251
1985	245
1984	269
1983	318
1982	236
1981	288
1980	360
1979	211
1978	263
1977	333
1976	230
1975	209
1974	224
1973	205
1972	201
1971	222
1970	272
1969	291
1968	185
1967	151
1966	294
1965	160
1964	277
1963	355
1962	197
1961	208
1960	257
1959	270
1958	253
1957	225
1956	276
1955	290
1954	382
1953	306
1952	326
1951	193
1950	133
1949	215
1948	255
1947	261
1946	270
1945	187
1944	214
1943	315
1942	207
1941	177
1940	307
1939	312
1938	272
1937	349
1936	401
1935	300
1934	418
1933	351
1932	286
1931	359
1930	236
1929	233
1928	136
1927	129
1926	196
1925	219
1924	196
1923	169
1922	294
1921	219
1920	149
1919	297
1918	242
1917	184
1916	212
1915	78
1914	222
1913	229
1912	127
1911	215
1910	261
1909	252
1908	164
1907	171
1906	114
1905	207
1904	129
1903	171
1902	199
1901	335
1900	252
1899	221
1898	246
1897	223
1896	251
1895	128

Compared with United States

Place	2025
Colorado	348
United States	1,502

Colorado compared with nearby places

Under 460
460 to 690
690 to 950
950 to 1,300
1,300 to 2,000
2,000 and over
No data

Cooling degree days, 2025, degree days (base 65°F). Colorado is outlined. Same source and period for every area shown. Source: NOAA National Centers for Environmental Information. Boundaries: U.S. Census Bureau cartographic boundary files.

Rankings

US states by cooling degree days 48 places

Definition

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.

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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/5/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 (Cooling degree days, Colorado, 1895 to 2025) [Data set]. Retrieved October 12, 2026, from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/5/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, Cooling degree days, Colorado, 1895 to 2025. NOAA National Centers for Environmental Information, 6 Oct. 2026, https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/5/cdd/12/12/1895-2025/data.json. Invokely, https://invokely.ai/en/cooling-degree-days/colorado. 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. Cooling degree days, Colorado, 1895 to 2025. Dataset. Accessed October 12, 2026. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/5/cdd/12/12/1895-2025/data.json. Also distributed by Invokely, https://invokely.ai/en/cooling-degree-days/colorado.

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, Cooling degree days, Colorado, 1895 to 2025 [Dataset]. Available at: https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/5/cdd/12/12/1895-2025/data.json, via Invokely: https://invokely.ai/en/cooling-degree-days/colorado (Accessed: 12 October 2026).

BibTeX

@misc{noaa_cooling_degree_days_colorado_2025,
  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: Cooling degree days, Colorado, 1895 to 2025}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/5/cdd/12/12/1895-2025/data.json},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/en/cooling-degree-days/colorado. 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/5/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: Cooling degree days, Colorado, 1895 to 2025
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/5/cdd/12/12/1895-2025/data.json
L2  - https://invokely.ai/en/cooling-degree-days/colorado
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/cooling-degree-days/colorado.
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/5/cdd/12/12/1895-2025/data.json. Retrieved 2026-10-12.
ER  -

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Questions

What is the cooling degree days in Colorado?

Where does this figure come from?

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 by Invokely on 2026-10-12.

What was the highest cooling degree days in Colorado?

498 degree days (base 65°F) in 2012, the highest value since 1895 in this series.

Cooling degree days elsewhere in United States

Related statistics for Colorado

All statistics for Colorado | Colorado in figures