Cooling degree days in Indiana

Cooling degree days in Indiana was 1,041 degree days (base 65°F) in 2025, according to NOAA National Centers for Environmental Information. That is up 0.3% from 2024. That is the 22nd highest of 48 states in 2025.

2025, degree days (base 65°F)1,041

Change on 2024+0.3%

Rank22nd of 48US states ranked

Series high1,3241936

Series low5511992

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 Indiana, 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	1,041
2024	1,038
2023	836
2022	986
2021	1,028
2020	919
2019	1,006
2018	1,173
2017	838
2016	1,107
2015	876
2014	746
2013	832
2012	1,141
2011	1,027
2010	1,171
2009	687
2008	824
2007	1,106
2006	838
2005	1,062
2004	761
2003	737
2002	1,085
2001	857
2000	793
1999	990
1998	1,021
1997	680
1996	753
1995	1,024
1994	760
1993	859
1992	551
1991	1,117
1990	735
1989	758
1988	1,073
1987	1,056
1986	919
1985	788
1984	835
1983	1,089
1982	761
1981	789
1980	1,010
1979	714
1978	860
1977	1,010
1976	669
1975	891
1974	705
1973	946
1972	749
1971	843
1970	891
1969	785
1968	839
1967	617
1966	790
1965	811
1964	889
1963	730
1962	843
1961	777
1960	806
1959	1,077
1958	686
1957	840
1956	838
1955	1,068
1954	1,037
1953	1,066
1952	1,014
1951	753
1950	672
1949	1,007
1948	868
1947	893
1946	743
1945	709
1944	1,108
1943	979
1942	869
1941	1,057
1940	888
1939	1,020
1938	933
1937	858
1936	1,324
1935	866
1934	1,249
1933	1,170
1932	917
1931	1,108
1930	947
1929	697
1928	704
1927	659
1926	862
1925	1,004
1924	622
1923	823
1922	996
1921	1,260
1920	756
1919	1,053
1918	921
1917	628
1916	967
1915	602
1914	1,060
1913	1,017
1912	771
1911	1,019
1910	722
1909	753
1908	926
1907	632
1906	943
1905	861
1904	682
1903	758
1902	792
1901	1,117
1900	1,140
1899	1,034
1898	1,015
1897	862
1896	918
1895	993

Compared with United States

Place	2025
Indiana	1,041
United States	1,502

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

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

BibTeX

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

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Questions

What is the cooling degree days in Indiana?

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 Indiana?

1,324 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 Indiana

All statistics for Indiana | Indiana in figures