Data / Cooling degree days / Kentucky

Cooling degree days in Kentucky

Cooling degree days in Kentucky was 1,400 degree days (base 65°F) in 2025, according to NOAA National Centers for Environmental Information. That is down 1.5% from 2024. That is the 16th highest of 48 states in 2025.

2025, degree days (base 65°F)1,400
Change on 2024-1.5%
Rank16th of 48US states ranked
Series high1,7041936
Series low7521967

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

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Cooling degree days in Kentucky, 1895 to 2025

6008001,0001,2001,4001,6001,800189519141933195219711990200920251895: 1,214 degree days (base 65°F)1896: 1,264 degree days (base 65°F)1897: 1,195 degree days (base 65°F)1898: 1,417 degree days (base 65°F)1899: 1,360 degree days (base 65°F)1900: 1,534 degree days (base 65°F)1901: 1,325 degree days (base 65°F)1902: 1,229 degree days (base 65°F)1903: 1,108 degree days (base 65°F)1904: 1,101 degree days (base 65°F)1905: 1,225 degree days (base 65°F)1906: 1,288 degree days (base 65°F)1907: 1,039 degree days (base 65°F)1908: 1,241 degree days (base 65°F)1909: 1,100 degree days (base 65°F)1910: 1,032 degree days (base 65°F)1911: 1,414 degree days (base 65°F)1912: 1,111 degree days (base 65°F)1913: 1,393 degree days (base 65°F)1914: 1,364 degree days (base 65°F)1915: 1,024 degree days (base 65°F)1916: 1,165 degree days (base 65°F)1917: 876 degree days (base 65°F)1918: 1,190 degree days (base 65°F)1919: 1,362 degree days (base 65°F)1920: 986 degree days (base 65°F)1921: 1,541 degree days (base 65°F)1922: 1,279 degree days (base 65°F)1923: 1,115 degree days (base 65°F)1924: 973 degree days (base 65°F)1925: 1,378 degree days (base 65°F)1926: 1,214 degree days (base 65°F)1927: 980 degree days (base 65°F)1928: 986 degree days (base 65°F)1929: 1,043 degree days (base 65°F)1930: 1,376 degree days (base 65°F)1931: 1,413 degree days (base 65°F)1932: 1,273 degree days (base 65°F)1933: 1,423 degree days (base 65°F)1934: 1,490 degree days (base 65°F)1935: 1,153 degree days (base 65°F)1936: 1,704 degree days (base 65°F)1937: 1,183 degree days (base 65°F)1938: 1,239 degree days (base 65°F)1939: 1,363 degree days (base 65°F)1940: 1,073 degree days (base 65°F)1941: 1,443 degree days (base 65°F)1942: 1,219 degree days (base 65°F)1943: 1,362 degree days (base 65°F)1944: 1,401 degree days (base 65°F)1945: 1,114 degree days (base 65°F)1946: 1,018 degree days (base 65°F)1947: 1,146 degree days (base 65°F)1948: 1,142 degree days (base 65°F)1949: 1,248 degree days (base 65°F)1950: 900 degree days (base 65°F)1951: 1,114 degree days (base 65°F)1952: 1,382 degree days (base 65°F)1953: 1,361 degree days (base 65°F)1954: 1,385 degree days (base 65°F)1955: 1,302 degree days (base 65°F)1956: 1,089 degree days (base 65°F)1957: 1,159 degree days (base 65°F)1958: 1,004 degree days (base 65°F)1959: 1,285 degree days (base 65°F)1960: 1,090 degree days (base 65°F)1961: 959 degree days (base 65°F)1962: 1,142 degree days (base 65°F)1963: 975 degree days (base 65°F)1964: 1,137 degree days (base 65°F)1965: 1,124 degree days (base 65°F)1966: 984 degree days (base 65°F)1967: 752 degree days (base 65°F)1968: 1,062 degree days (base 65°F)1969: 1,111 degree days (base 65°F)1970: 1,180 degree days (base 65°F)1971: 1,075 degree days (base 65°F)1972: 991 degree days (base 65°F)1973: 1,178 degree days (base 65°F)1974: 858 degree days (base 65°F)1975: 1,114 degree days (base 65°F)1976: 785 degree days (base 65°F)1977: 1,275 degree days (base 65°F)1978: 1,144 degree days (base 65°F)1979: 924 degree days (base 65°F)1980: 1,320 degree days (base 65°F)1981: 1,048 degree days (base 65°F)1982: 995 degree days (base 65°F)1983: 1,290 degree days (base 65°F)1984: 1,066 degree days (base 65°F)1985: 1,070 degree days (base 65°F)1986: 1,281 degree days (base 65°F)1987: 1,348 degree days (base 65°F)1988: 1,221 degree days (base 65°F)1989: 991 degree days (base 65°F)1990: 1,060 degree days (base 65°F)1991: 1,362 degree days (base 65°F)1992: 846 degree days (base 65°F)1993: 1,198 degree days (base 65°F)1994: 1,025 degree days (base 65°F)1995: 1,254 degree days (base 65°F)1996: 1,034 degree days (base 65°F)1997: 947 degree days (base 65°F)1998: 1,367 degree days (base 65°F)1999: 1,306 degree days (base 65°F)2000: 1,137 degree days (base 65°F)2001: 1,141 degree days (base 65°F)2002: 1,386 degree days (base 65°F)2003: 1,013 degree days (base 65°F)2004: 1,087 degree days (base 65°F)2005: 1,356 degree days (base 65°F)2006: 1,139 degree days (base 65°F)2007: 1,516 degree days (base 65°F)2008: 1,161 degree days (base 65°F)2009: 1,023 degree days (base 65°F)2010: 1,554 degree days (base 65°F)2011: 1,303 degree days (base 65°F)2012: 1,398 degree days (base 65°F)2013: 1,079 degree days (base 65°F)2014: 1,110 degree days (base 65°F)2015: 1,247 degree days (base 65°F)2016: 1,498 degree days (base 65°F)2017: 1,161 degree days (base 65°F)2018: 1,530 degree days (base 65°F)2019: 1,439 degree days (base 65°F)2020: 1,208 degree days (base 65°F)2021: 1,259 degree days (base 65°F)2022: 1,304 degree days (base 65°F)2023: 1,163 degree days (base 65°F)2024: 1,421 degree days (base 65°F)2025: 1,400 degree days (base 65°F)
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
Perioddegree days (base 65°F)
20251,400
20241,421
20231,163
20221,304
20211,259
20201,208
20191,439
20181,530
20171,161
20161,498
20151,247
20141,110
20131,079
20121,398
20111,303
20101,554
20091,023
20081,161
20071,516
20061,139
20051,356
20041,087
20031,013
20021,386
20011,141
20001,137
19991,306
19981,367
1997947
19961,034
19951,254
19941,025
19931,198
1992846
19911,362
19901,060
1989991
19881,221
19871,348
19861,281
19851,070
19841,066
19831,290
1982995
19811,048
19801,320
1979924
19781,144
19771,275
1976785
19751,114
1974858
19731,178
1972991
19711,075
19701,180
19691,111
19681,062
1967752
1966984
19651,124
19641,137
1963975
19621,142
1961959
19601,090
19591,285
19581,004
19571,159
19561,089
19551,302
19541,385
19531,361
19521,382
19511,114
1950900
19491,248
19481,142
19471,146
19461,018
19451,114
19441,401
19431,362
19421,219
19411,443
19401,073
19391,363
19381,239
19371,183
19361,704
19351,153
19341,490
19331,423
19321,273
19311,413
19301,376
19291,043
1928986
1927980
19261,214
19251,378
1924973
19231,115
19221,279
19211,541
1920986
19191,362
19181,190
1917876
19161,165
19151,024
19141,364
19131,393
19121,111
19111,414
19101,032
19091,100
19081,241
19071,039
19061,288
19051,225
19041,101
19031,108
19021,229
19011,325
19001,534
18991,360
18981,417
18971,195
18961,264
18951,214

Compared with United States

Place2025
Kentucky1,400
United States1,502

Rankings

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/15/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, Kentucky, 1895 to 2025) [Data set]. Retrieved October 12, 2026, from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/15/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, Kentucky, 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/15/cdd/12/12/1895-2025/data.json. Invokely, https://invokely.ai/en/cooling-degree-days/kentucky. 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, Kentucky, 1895 to 2025. Dataset. Accessed October 12, 2026. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/15/cdd/12/12/1895-2025/data.json. Also distributed by Invokely, https://invokely.ai/en/cooling-degree-days/kentucky.

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, Kentucky, 1895 to 2025 [Dataset]. Available at: https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/15/cdd/12/12/1895-2025/data.json, via Invokely: https://invokely.ai/en/cooling-degree-days/kentucky (Accessed: 12 October 2026).

BibTeX
@misc{noaa_cooling_degree_days_kentucky_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, Kentucky, 1895 to 2025}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/15/cdd/12/12/1895-2025/data.json},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/en/cooling-degree-days/kentucky. 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/15/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, Kentucky, 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/15/cdd/12/12/1895-2025/data.json
L2  - https://invokely.ai/en/cooling-degree-days/kentucky
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/cooling-degree-days/kentucky.
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/15/cdd/12/12/1895-2025/data.json. Retrieved 2026-10-12.
ER  -
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Questions

What is the cooling degree days in Kentucky?

Cooling degree days in Kentucky was 1,400 degree days (base 65°F) in 2025, according to NOAA National Centers for Environmental Information. That is down 1.5% from 2024. That is the 16th highest of 48 states in 2025.

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 Kentucky?

1,704 degree days (base 65°F) in 1936, the highest value since 1895 in this series.

Cooling degree days elsewhere in United States

Related statistics for Kentucky

All statistics for Kentucky | Kentucky in figures