# Heating degree days in Idaho

Heating degree days in Idaho was 6,232 degree days (base 65°F) in 2025. Source: NOAA National Centers for Environmental Information.

- Indicator id: `heating_degree_days_annual`
- Place id: `us-state-16`
- 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/10/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/10/hdd/12/12/1895-2025/data.json. Retrieved 2026-10-12.
- Web page: https://invokely.ai/en/heating-degree-days/idaho
- API: https://invokely.ai/api/v1/series?indicator=heating_degree_days_annual&place=us-state-16

| Period | degree days (base 65°F) |
|---|---:|
| 2025 | 6,232 |
| 2024 | 6,463 |
| 2023 | 6,898 |
| 2022 | 7,280 |
| 2021 | 6,479 |
| 2020 | 6,661 |
| 2019 | 7,132 |
| 2018 | 6,646 |
| 2017 | 6,985 |
| 2016 | 6,429 |
| 2015 | 6,103 |
| 2014 | 6,491 |
| 2013 | 7,187 |
| 2012 | 6,494 |
| 2011 | 7,401 |
| 2010 | 6,933 |
| 2009 | 7,270 |
| 2008 | 7,339 |
| 2007 | 6,706 |
| 2006 | 6,797 |
| 2005 | 7,008 |
| 2004 | 6,736 |
| 2003 | 6,421 |
| 2002 | 7,158 |
| 2001 | 6,851 |
| 2000 | 6,902 |
| 1999 | 6,875 |
| 1998 | 6,727 |
| 1997 | 6,930 |
| 1996 | 7,054 |
| 1995 | 6,770 |
| 1994 | 6,799 |
| 1993 | 7,732 |
| 1992 | 6,439 |
| 1991 | 7,137 |
| 1990 | 7,013 |
| 1989 | 7,348 |
| 1988 | 6,829 |
| 1987 | 6,542 |
| 1986 | 6,805 |
| 1985 | 8,540 |
| 1984 | 7,963 |
| 1983 | 7,058 |
| 1982 | 7,764 |
| 1981 | 6,679 |
| 1980 | 6,960 |
| 1979 | 7,385 |
| 1978 | 7,209 |
| 1977 | 7,170 |
| 1976 | 7,417 |
| 1975 | 7,717 |
| 1974 | 7,103 |
| 1973 | 7,087 |
| 1972 | 7,425 |
| 1971 | 7,548 |
| 1970 | 7,291 |
| 1969 | 7,207 |
| 1968 | 7,246 |
| 1967 | 7,011 |
| 1966 | 6,913 |
| 1965 | 7,143 |
| 1964 | 7,880 |
| 1963 | 6,935 |
| 1962 | 7,255 |
| 1961 | 7,092 |
| 1960 | 7,411 |
| 1959 | 7,218 |
| 1958 | 6,624 |
| 1957 | 7,445 |
| 1956 | 7,378 |
| 1955 | 8,010 |
| 1954 | 6,976 |
| 1953 | 6,663 |
| 1952 | 7,469 |
| 1951 | 7,600 |
| 1950 | 7,306 |
| 1949 | 7,613 |
| 1948 | 7,574 |
| 1947 | 6,989 |
| 1946 | 7,185 |
| 1945 | 7,263 |
| 1944 | 7,426 |
| 1943 | 7,169 |
| 1942 | 7,530 |
| 1941 | 6,763 |
| 1940 | 6,504 |
| 1939 | 6,738 |
| 1938 | 6,892 |
| 1937 | 7,480 |
| 1936 | 7,245 |
| 1935 | 7,539 |
| 1934 | 5,789 |
| 1933 | 7,363 |
| 1932 | 7,767 |
| 1931 | 7,326 |
| 1930 | 7,710 |
| 1929 | 7,953 |
| 1928 | 7,287 |
| 1927 | 7,353 |
| 1926 | 6,711 |
| 1925 | 6,763 |
| 1924 | 7,474 |
| 1923 | 7,472 |
| 1922 | 7,952 |
| 1921 | 7,013 |
| 1920 | 7,486 |
| 1919 | 7,571 |
| 1918 | 7,055 |
| 1917 | 7,671 |
| 1916 | 7,970 |
| 1915 | 7,021 |
| 1914 | 7,158 |
| 1913 | 7,718 |
| 1912 | 7,703 |
| 1911 | 7,817 |
| 1910 | 6,990 |
| 1909 | 7,315 |
| 1908 | 7,340 |
| 1907 | 6,974 |
| 1906 | 7,121 |
| 1905 | 7,362 |
| 1904 | 6,998 |
| 1903 | 7,708 |
| 1902 | 7,340 |
| 1901 | 7,018 |
| 1900 | 6,649 |
| 1899 | 7,618 |
| 1898 | 7,716 |
| 1897 | 7,243 |
| 1896 | 7,252 |
| 1895 | 7,591 |