# Heating degree days in Colorado

Heating degree days in Colorado was 6,554 degree days (base 65°F) in 2025. Source: NOAA National Centers for Environmental Information.

- Indicator id: `heating_degree_days_annual`
- Place id: `us-state-08`
- 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/5/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/5/hdd/12/12/1895-2025/data.json. Retrieved 2026-10-12.
- Web page: https://invokely.ai/en/heating-degree-days/colorado
- API: https://invokely.ai/api/v1/series?indicator=heating_degree_days_annual&place=us-state-08

| Period | degree days (base 65°F) |
|---|---:|
| 2025 | 6,554 |
| 2024 | 6,547 |
| 2023 | 7,282 |
| 2022 | 7,212 |
| 2021 | 6,723 |
| 2020 | 6,814 |
| 2019 | 7,498 |
| 2018 | 6,872 |
| 2017 | 6,479 |
| 2016 | 6,672 |
| 2015 | 6,668 |
| 2014 | 7,155 |
| 2013 | 7,480 |
| 2012 | 6,397 |
| 2011 | 7,397 |
| 2010 | 7,057 |
| 2009 | 7,353 |
| 2008 | 7,453 |
| 2007 | 7,156 |
| 2006 | 6,923 |
| 2005 | 6,832 |
| 2004 | 6,961 |
| 2003 | 6,843 |
| 2002 | 7,230 |
| 2001 | 6,876 |
| 2000 | 6,877 |
| 1999 | 6,766 |
| 1998 | 6,966 |
| 1997 | 7,452 |
| 1996 | 7,191 |
| 1995 | 7,217 |
| 1994 | 6,851 |
| 1993 | 7,780 |
| 1992 | 7,137 |
| 1991 | 7,229 |
| 1990 | 7,203 |
| 1989 | 7,289 |
| 1988 | 7,364 |
| 1987 | 7,241 |
| 1986 | 6,881 |
| 1985 | 7,789 |
| 1984 | 7,808 |
| 1983 | 7,760 |
| 1982 | 7,660 |
| 1981 | 6,679 |
| 1980 | 7,305 |
| 1979 | 7,858 |
| 1978 | 7,658 |
| 1977 | 6,993 |
| 1976 | 7,398 |
| 1975 | 7,752 |
| 1974 | 7,459 |
| 1973 | 7,852 |
| 1972 | 7,563 |
| 1971 | 7,696 |
| 1970 | 7,651 |
| 1969 | 7,542 |
| 1968 | 7,716 |
| 1967 | 7,416 |
| 1966 | 7,509 |
| 1965 | 7,580 |
| 1964 | 7,824 |
| 1963 | 7,052 |
| 1962 | 7,369 |
| 1961 | 7,808 |
| 1960 | 7,664 |
| 1959 | 7,626 |
| 1958 | 7,243 |
| 1957 | 7,661 |
| 1956 | 7,338 |
| 1955 | 7,711 |
| 1954 | 6,642 |
| 1953 | 7,113 |
| 1952 | 7,617 |
| 1951 | 8,036 |
| 1950 | 7,242 |
| 1949 | 7,648 |
| 1948 | 7,837 |
| 1947 | 7,632 |
| 1946 | 7,176 |
| 1945 | 7,673 |
| 1944 | 7,729 |
| 1943 | 7,205 |
| 1942 | 7,834 |
| 1941 | 7,419 |
| 1940 | 7,296 |
| 1939 | 7,171 |
| 1938 | 7,334 |
| 1937 | 7,845 |
| 1936 | 7,373 |
| 1935 | 7,388 |
| 1934 | 6,447 |
| 1933 | 7,117 |
| 1932 | 7,901 |
| 1931 | 7,391 |
| 1930 | 7,907 |
| 1929 | 8,352 |
| 1928 | 7,766 |
| 1927 | 7,547 |
| 1926 | 7,552 |
| 1925 | 7,466 |
| 1924 | 8,279 |
| 1923 | 8,070 |
| 1922 | 7,783 |
| 1921 | 7,035 |
| 1920 | 7,967 |
| 1919 | 7,956 |
| 1918 | 7,847 |
| 1917 | 8,087 |
| 1916 | 7,975 |
| 1915 | 7,891 |
| 1914 | 7,562 |
| 1913 | 8,219 |
| 1912 | 8,523 |
| 1911 | 7,551 |
| 1910 | 6,897 |
| 1909 | 7,989 |
| 1908 | 7,662 |
| 1907 | 7,391 |
| 1906 | 7,686 |
| 1905 | 7,920 |
| 1904 | 7,284 |
| 1903 | 8,051 |
| 1902 | 7,444 |
| 1901 | 7,438 |
| 1900 | 7,159 |
| 1899 | 8,065 |
| 1898 | 8,162 |
| 1897 | 7,690 |
| 1896 | 7,510 |
| 1895 | 8,322 |