Cooling degree days in Maine

Cooling degree days in Maine was 282 degree days (base 65°F) in 2025, according to NOAA National Centers for Environmental Information. That is down 21.4% from 2024. That is the 47th highest of 48 states in 2025.

2025, degree days (base 65°F)282

Change on 2024-21.4%

Rank47th of 48US states ranked

Series high3592024

Series low411903

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 Maine, 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	282
2024	359
2023	289
2022	336
2021	305
2020	312
2019	255
2018	334
2017	215
2016	293
2015	253
2014	234
2013	262
2012	291
2011	262
2010	305
2009	161
2008	220
2007	180
2006	262
2005	268
2004	159
2003	246
2002	253
2001	264
2000	121
1999	337
1998	218
1997	186
1996	161
1995	263
1994	277
1993	204
1992	108
1991	235
1990	239
1989	164
1988	257
1987	137
1986	93
1985	161
1984	238
1983	241
1982	132
1981	179
1980	207
1979	187
1978	183
1977	151
1976	182
1975	224
1974	164
1973	285
1972	138
1971	192
1970	226
1969	170
1968	154
1967	197
1966	159
1965	134
1964	101
1963	178
1962	79
1961	181
1960	168
1959	225
1958	119
1957	117
1956	79
1955	263
1954	94
1953	161
1952	305
1951	151
1950	140
1949	281
1948	191
1947	253
1946	116
1945	160
1944	250
1943	162
1942	165
1941	162
1940	144
1939	237
1938	238
1937	322
1936	100
1935	233
1934	129
1933	124
1932	155
1931	184
1930	182
1929	107
1928	172
1927	94
1926	90
1925	123
1924	139
1923	68
1922	156
1921	216
1920	185
1919	152
1918	130
1917	176
1916	170
1915	94
1914	73
1913	124
1912	84
1911	200
1910	122
1909	83
1908	172
1907	84
1906	157
1905	99
1904	101
1903	41
1902	55
1901	176
1900	165
1899	122
1898	166
1897	118
1896	125
1895	116

Compared with United States

Place	2025
Maine	282
United States	1,502

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.

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/17/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, Maine, 1895 to 2025) [Data set]. Retrieved October 12, 2026, from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/17/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, Maine, 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/17/cdd/12/12/1895-2025/data.json. Invokely, https://invokely.ai/en/cooling-degree-days/maine. 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, Maine, 1895 to 2025. Dataset. Accessed October 12, 2026. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/17/cdd/12/12/1895-2025/data.json. Also distributed by Invokely, https://invokely.ai/en/cooling-degree-days/maine.

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, Maine, 1895 to 2025 [Dataset]. Available at: https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/17/cdd/12/12/1895-2025/data.json, via Invokely: https://invokely.ai/en/cooling-degree-days/maine (Accessed: 12 October 2026).

BibTeX

@misc{noaa_cooling_degree_days_maine_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, Maine, 1895 to 2025}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/17/cdd/12/12/1895-2025/data.json},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/en/cooling-degree-days/maine. 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/17/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, Maine, 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/17/cdd/12/12/1895-2025/data.json
L2  - https://invokely.ai/en/cooling-degree-days/maine
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/cooling-degree-days/maine.
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/17/cdd/12/12/1895-2025/data.json. Retrieved 2026-10-12.
ER  -

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Questions

What is the cooling degree days in Maine?

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 Maine?

359 degree days (base 65°F) in 2024, the highest value since 1895 in this series.

Cooling degree days elsewhere in United States

Related statistics for Maine

All statistics for Maine | Maine in figures