# Heating degree days in South Dakota

Heating degree days in South Dakota was 7,159 degree days (base 65°F) in 2025. Source: NOAA National Centers for Environmental Information.

- Indicator id: `heating_degree_days_annual`
- Place id: `us-state-46`
- Unit: degree days (base 65°F)
- Definition: Sum over January to December of the degrees by which the daily mean temperature falls below 65°F, a measure of heating 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 heating degree days (base 65°F), contiguous US and statewide (https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/39/hdd/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 heating 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/39/hdd/12/12/1895-2025/data.json. Retrieved 2026-10-12.
- Web page: https://invokely.ai/en/heating-degree-days/south-dakota
- API: https://invokely.ai/api/v1/series?indicator=heating_degree_days_annual&place=us-state-46

| Period | degree days (base 65°F) |
|---|---:|
| 2025 | 7,159 |
| 2024 | 6,803 |
| 2023 | 7,369 |
| 2022 | 7,954 |
| 2021 | 7,036 |
| 2020 | 7,376 |
| 2019 | 8,627 |
| 2018 | 8,202 |
| 2017 | 7,218 |
| 2016 | 6,806 |
| 2015 | 7,002 |
| 2014 | 8,178 |
| 2013 | 8,285 |
| 2012 | 6,568 |
| 2011 | 7,885 |
| 2010 | 7,737 |
| 2009 | 8,099 |
| 2008 | 8,267 |
| 2007 | 7,421 |
| 2006 | 6,917 |
| 2005 | 7,158 |
| 2004 | 7,187 |
| 2003 | 7,529 |
| 2002 | 7,605 |
| 2001 | 7,458 |
| 2000 | 7,563 |
| 1999 | 6,865 |
| 1998 | 7,067 |
| 1997 | 7,969 |
| 1996 | 8,896 |
| 1995 | 8,007 |
| 1994 | 7,802 |
| 1993 | 8,531 |
| 1992 | 7,397 |
| 1991 | 7,362 |
| 1990 | 7,214 |
| 1989 | 8,150 |
| 1988 | 7,635 |
| 1987 | 6,660 |
| 1986 | 7,453 |
| 1985 | 8,487 |
| 1984 | 7,908 |
| 1983 | 8,151 |
| 1982 | 8,452 |
| 1981 | 6,976 |
| 1980 | 7,586 |
| 1979 | 8,670 |
| 1978 | 8,835 |
| 1977 | 7,735 |
| 1976 | 7,709 |
| 1975 | 8,222 |
| 1974 | 7,559 |
| 1973 | 7,596 |
| 1972 | 8,589 |
| 1971 | 8,209 |
| 1970 | 8,414 |
| 1969 | 8,415 |
| 1968 | 7,945 |
| 1967 | 7,922 |
| 1966 | 8,391 |
| 1965 | 8,274 |
| 1964 | 7,874 |
| 1963 | 7,520 |
| 1962 | 7,995 |
| 1961 | 7,977 |
| 1960 | 8,387 |
| 1959 | 8,167 |
| 1958 | 7,749 |
| 1957 | 8,083 |
| 1956 | 8,016 |
| 1955 | 8,211 |
| 1954 | 7,538 |
| 1953 | 7,476 |
| 1952 | 7,957 |
| 1951 | 9,058 |
| 1950 | 8,993 |
| 1949 | 8,088 |
| 1948 | 8,055 |
| 1947 | 8,122 |
| 1946 | 7,465 |
| 1945 | 8,138 |
| 1944 | 7,931 |
| 1943 | 8,019 |
| 1942 | 7,825 |
| 1941 | 7,436 |
| 1940 | 8,125 |
| 1939 | 7,230 |
| 1938 | 7,461 |
| 1937 | 8,732 |
| 1936 | 8,842 |
| 1935 | 8,036 |
| 1934 | 7,036 |
| 1933 | 7,521 |
| 1932 | 8,333 |
| 1931 | 6,806 |
| 1930 | 7,757 |
| 1929 | 8,827 |
| 1928 | 7,654 |
| 1927 | 8,331 |
| 1926 | 7,840 |
| 1925 | 7,874 |
| 1924 | 8,636 |
| 1923 | 7,781 |
| 1922 | 8,146 |
| 1921 | 7,182 |
| 1920 | 8,147 |
| 1919 | 8,416 |
| 1918 | 7,958 |
| 1917 | 9,134 |
| 1916 | 8,987 |
| 1915 | 8,228 |
| 1914 | 7,883 |
| 1913 | 7,994 |
| 1912 | 8,485 |
| 1911 | 8,138 |
| 1910 | 7,690 |
| 1909 | 8,671 |
| 1908 | 7,629 |
| 1907 | 8,404 |
| 1906 | 8,042 |
| 1905 | 8,314 |
| 1904 | 8,239 |
| 1903 | 8,431 |
| 1902 | 8,163 |
| 1901 | 7,742 |
| 1900 | 7,495 |
| 1899 | 8,853 |
| 1898 | 8,241 |
| 1897 | 8,660 |
| 1896 | 8,497 |
| 1895 | 8,567 |