4,021
2025 (latest)
HEATING DEGREE DAYS
degree days · 1949–2025 · neither direction is "better" · U.S. Energy Information Administration, Monthly Energy Review
4,933
1949
5,463
high · 1958
3,692
low · 2024
−18%
since 1949
┊ dashed lines mark 1979 Oil shock & inflation peak · 1987 Black Monday crash · 1991 Gulf War recession · 2001 Dot-com bust & 9/11 · 2008 Global financial crisis · 2020 COVID-19 pandemic
Method & caveats. MSN ZWHDPUS; publisher annual row (MER YYYY13). Original unit: Number. Converted only by the declared unit scale. Population weights re-based after each decennial census (most recently 2020); weight changes affect comparability. Breaks: Population weights re-based after each decennial census (most recently 2020); weight changes affect comparability.
Sources
Every value on this page is read from the publisher below. Current and historical source documents:
- https://api.eia.gov/v2/total-energy/data/?frequency=annual&data%5B0%5D=value&facets%5Bmsn%5D%5B%5D=ZWHDPUS&length=5000&sort%5B0%5D%5Bcolumn%5D=period&sort%5B0%5D%5Bdirection%5D=asc
- https://github.com/danielmiessler/substrate/tree/main/Data/US-Energy-And-Environment
Data
| Year | Heating degree days | Change |
|---|---|---|
| 2025 | 4,021 | +9% |
| 2024 | 3,692 | −3% |
| 2023 | 3,802 | −10% |
| 2022 | 4,243 | +8% |
| 2021 | 3,934 | +1% |
| 2020 | 3,914 | −9% |
| 2019 | 4,317 | +1% |
| 2018 | 4,291 | +12% |
| 2017 | 3,838 | −1% |
| 2016 | 3,887 | −5% |
| 2015 | 4,094 | −10% |
| 2014 | 4,558 | +2% |
| 2013 | 4,470 | +19% |
| 2012 | 3,771 | −13% |
| 2011 | 4,312 | −3% |
| 2010 | 4,461 | −0% |
| 2009 | 4,478 | −0% |
| 2008 | 4,492 | +5% |
| 2007 | 4,266 | +6% |
| 2006 | 4,038 | −7% |
| 2005 | 4,346 | +0% |
| 2004 | 4,342 | −4% |
| 2003 | 4,542 | +4% |
| 2002 | 4,354 | +2% |
| 2001 | 4,254 | −5% |
| 2000 | 4,491 | +6% |
| 1999 | 4,230 | +4% |
| 1998 | 4,049 | −12% |
| 1997 | 4,626 | −4% |
| 1996 | 4,799 | +3% |
| 1995 | 4,637 | +1% |
| 1994 | 4,607 | −5% |
| 1993 | 4,835 | +6% |
| 1992 | 4,582 | +5% |
| 1991 | 4,345 | +4% |
| 1990 | 4,178 | −15% |
| 1989 | 4,892 | +1% |
| 1988 | 4,839 | +7% |
| 1987 | 4,530 | +0% |
| 1986 | 4,517 | −8% |
| 1985 | 4,886 | +2% |
| 1984 | 4,772 | −3% |
| 1983 | 4,904 | −1% |
| 1982 | 4,934 | +2% |
| 1981 | 4,849 | −4% |
| 1980 | 5,075 | −2% |
| 1979 | 5,164 | −4% |
| 1978 | 5,379 | +7% |
| 1977 | 5,012 | −3% |
| 1976 | 5,177 | +6% |
| 1975 | 4,900 | +0% |
| 1974 | 4,877 | +2% |
| 1973 | 4,760 | −9% |
| 1972 | 5,247 | +4% |
| 1971 | 5,068 | −3% |
| 1970 | 5,214 | −2% |
| 1969 | 5,299 | +1% |
| 1968 | 5,243 | +1% |
| 1967 | 5,211 | −2% |
| 1966 | 5,305 | +3% |
| 1965 | 5,143 | +1% |
| 1964 | 5,082 | −5% |
| 1963 | 5,357 | +0% |
| 1962 | 5,340 | +3% |
| 1961 | 5,190 | −4% |
| 1960 | 5,400 | +6% |
| 1959 | 5,091 | −7% |
| 1958 | 5,463 | +8% |
| 1957 | 5,043 | −2% |
| 1956 | 5,124 | −2% |
| 1955 | 5,242 | +6% |
| 1954 | 4,961 | +5% |
| 1953 | 4,747 | −7% |
| 1952 | 5,082 | −4% |
| 1951 | 5,310 | −1% |
| 1950 | 5,362 | +9% |
| 1949 | 4,933 | — |
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