# Heating degree days in Oregon

Heating degree days in Oregon was 4,854 degree days (base 65°F) in 2025. Source: NOAA National Centers for Environmental Information.

- Indicator id: `heating_degree_days_annual`
- Place id: `us-state-41`
- 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/35/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/35/hdd/12/12/1895-2025/data.json. Retrieved 2026-10-12.
- Web page: https://invokely.ai/en/heating-degree-days/oregon
- API: https://invokely.ai/api/v1/series?indicator=heating_degree_days_annual&place=us-state-41

| Period | degree days (base 65°F) |
|---|---:|
| 2025 | 4,854 |
| 2024 | 5,041 |
| 2023 | 5,184 |
| 2022 | 5,291 |
| 2021 | 5,068 |
| 2020 | 5,042 |
| 2019 | 5,426 |
| 2018 | 5,057 |
| 2017 | 5,370 |
| 2016 | 4,883 |
| 2015 | 4,495 |
| 2014 | 4,740 |
| 2013 | 5,419 |
| 2012 | 5,425 |
| 2011 | 5,857 |
| 2010 | 5,399 |
| 2009 | 5,567 |
| 2008 | 5,730 |
| 2007 | 5,494 |
| 2006 | 5,272 |
| 2005 | 5,261 |
| 2004 | 5,018 |
| 2003 | 5,013 |
| 2002 | 5,326 |
| 2001 | 5,365 |
| 2000 | 5,468 |
| 1999 | 5,471 |
| 1998 | 5,282 |
| 1997 | 5,232 |
| 1996 | 5,390 |
| 1995 | 5,002 |
| 1994 | 5,336 |
| 1993 | 5,702 |
| 1992 | 4,647 |
| 1991 | 5,370 |
| 1990 | 5,514 |
| 1989 | 5,532 |
| 1988 | 5,306 |
| 1987 | 5,026 |
| 1986 | 5,169 |
| 1985 | 6,232 |
| 1984 | 5,793 |
| 1983 | 5,440 |
| 1982 | 5,884 |
| 1981 | 5,287 |
| 1980 | 5,538 |
| 1979 | 5,465 |
| 1978 | 5,570 |
| 1977 | 5,601 |
| 1976 | 5,723 |
| 1975 | 5,832 |
| 1974 | 5,546 |
| 1973 | 5,498 |
| 1972 | 5,753 |
| 1971 | 6,056 |
| 1970 | 5,607 |
| 1969 | 5,702 |
| 1968 | 5,472 |
| 1967 | 5,382 |
| 1966 | 5,385 |
| 1965 | 5,475 |
| 1964 | 6,015 |
| 1963 | 5,604 |
| 1962 | 5,709 |
| 1961 | 5,422 |
| 1960 | 5,688 |
| 1959 | 5,567 |
| 1958 | 4,803 |
| 1957 | 5,709 |
| 1956 | 5,878 |
| 1955 | 6,300 |
| 1954 | 5,839 |
| 1953 | 5,447 |
| 1952 | 5,779 |
| 1951 | 5,720 |
| 1950 | 5,876 |
| 1949 | 5,969 |
| 1948 | 6,221 |
| 1947 | 5,354 |
| 1946 | 5,819 |
| 1945 | 5,642 |
| 1944 | 5,684 |
| 1943 | 5,727 |
| 1942 | 5,635 |
| 1941 | 5,152 |
| 1940 | 5,006 |
| 1939 | 5,241 |
| 1938 | 5,555 |
| 1937 | 5,786 |
| 1936 | 5,510 |
| 1935 | 5,917 |
| 1934 | 4,584 |
| 1933 | 5,921 |
| 1932 | 5,802 |
| 1931 | 5,498 |
| 1930 | 6,098 |
| 1929 | 6,116 |
| 1928 | 5,637 |
| 1927 | 5,837 |
| 1926 | 4,989 |
| 1925 | 5,331 |
| 1924 | 5,898 |
| 1923 | 5,791 |
| 1922 | 6,356 |
| 1921 | 5,765 |
| 1920 | 6,156 |
| 1919 | 6,245 |
| 1918 | 5,585 |
| 1917 | 5,931 |
| 1916 | 6,514 |
| 1915 | 5,528 |
| 1914 | 5,600 |
| 1913 | 6,119 |
| 1912 | 5,957 |
| 1911 | 6,342 |
| 1910 | 5,799 |
| 1909 | 6,229 |
| 1908 | 5,948 |
| 1907 | 5,610 |
| 1906 | 5,478 |
| 1905 | 5,732 |
| 1904 | 5,522 |
| 1903 | 5,942 |
| 1902 | 5,897 |
| 1901 | 5,761 |
| 1900 | 5,411 |
| 1899 | 6,074 |
| 1898 | 5,912 |
| 1897 | 5,742 |
| 1896 | 5,897 |
| 1895 | 6,095 |