# Cooling degree days in Indiana

Cooling degree days in Indiana was 1,041 degree days (base 65°F) in 2025. Source: NOAA National Centers for Environmental Information.

- Indicator id: `cooling_degree_days_annual`
- Place id: `us-state-18`
- Unit: degree days (base 65°F)
- 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).
- Note: NOAA publishes these for operational monitoring; they can differ from official degree day publications.
- Source: NOAA National Centers for Environmental Information, NOAA Climate at a Glance, January to December cooling degree days (base 65°F), contiguous US and statewide (https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/12/cdd/12/12/1895-2025/data.json)
- Publisher page: https://invokely.ai/en/publishers/noaa-ncei
- Retrieved: 2026-10-12
- License: Public domain (US government work); NCEI asks users to cite the nClimDiv dataset
- Citation: 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.
- Web page: https://invokely.ai/en/cooling-degree-days/indiana
- API: https://invokely.ai/api/v1/series?indicator=cooling_degree_days_annual&place=us-state-18

| 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 |