# Cooling degree days in Arizona

Cooling degree days in Arizona was 3,330 degree days (base 65°F) in 2025. Source: NOAA National Centers for Environmental Information.

- Indicator id: `cooling_degree_days_annual`
- Place id: `us-state-04`
- Unit: degree days (base 65°F)
- Definition: Sum over January to December of the degrees by which the daily mean temperature exceeds 65°F, a measure of cooling 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 cooling degree days (base 65°F), contiguous US and statewide (https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/2/cdd/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 cooling 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/2/cdd/12/12/1895-2025/data.json. Retrieved 2026-10-12.
- Web page: https://invokely.ai/en/cooling-degree-days/arizona
- API: https://invokely.ai/api/v1/series?indicator=cooling_degree_days_annual&place=us-state-04

| Period | degree days (base 65°F) |
|---|---:|
| 2025 | 3,330 |
| 2024 | 3,493 |
| 2023 | 3,175 |
| 2022 | 3,187 |
| 2021 | 3,152 |
| 2020 | 3,557 |
| 2019 | 2,975 |
| 2018 | 3,246 |
| 2017 | 3,338 |
| 2016 | 3,219 |
| 2015 | 3,129 |
| 2014 | 3,117 |
| 2013 | 3,065 |
| 2012 | 3,214 |
| 2011 | 3,124 |
| 2010 | 2,942 |
| 2009 | 3,118 |
| 2008 | 2,998 |
| 2007 | 3,249 |
| 2006 | 3,083 |
| 2005 | 3,004 |
| 2004 | 2,937 |
| 2003 | 3,227 |
| 2002 | 3,113 |
| 2001 | 3,238 |
| 2000 | 3,188 |
| 1999 | 2,850 |
| 1998 | 2,677 |
| 1997 | 3,068 |
| 1996 | 3,106 |
| 1995 | 2,894 |
| 1994 | 3,035 |
| 1993 | 2,739 |
| 1992 | 2,818 |
| 1991 | 2,616 |
| 1990 | 2,810 |
| 1989 | 3,091 |
| 1988 | 2,904 |
| 1987 | 2,837 |
| 1986 | 2,724 |
| 1985 | 2,770 |
| 1984 | 2,710 |
| 1983 | 2,633 |
| 1982 | 2,536 |
| 1981 | 2,987 |
| 1980 | 2,740 |
| 1979 | 2,733 |
| 1978 | 2,840 |
| 1977 | 2,855 |
| 1976 | 2,534 |
| 1975 | 2,477 |
| 1974 | 2,817 |
| 1973 | 2,701 |
| 1972 | 2,764 |
| 1971 | 2,461 |
| 1970 | 2,683 |
| 1969 | 2,821 |
| 1968 | 2,502 |
| 1967 | 2,619 |
| 1966 | 2,846 |
| 1965 | 2,398 |
| 1964 | 2,546 |
| 1963 | 2,780 |
| 1962 | 2,791 |
| 1961 | 2,673 |
| 1960 | 2,929 |
| 1959 | 2,839 |
| 1958 | 2,990 |
| 1957 | 2,645 |
| 1956 | 2,790 |
| 1955 | 2,491 |
| 1954 | 2,871 |
| 1953 | 2,607 |
| 1952 | 2,865 |
| 1951 | 2,609 |
| 1950 | 2,677 |
| 1949 | 2,653 |
| 1948 | 2,753 |
| 1947 | 2,786 |
| 1946 | 2,690 |
| 1945 | 2,578 |
| 1944 | 2,468 |
| 1943 | 2,779 |
| 1942 | 2,609 |
| 1941 | 2,213 |
| 1940 | 3,001 |
| 1939 | 2,736 |
| 1938 | 2,646 |
| 1937 | 2,851 |
| 1936 | 2,899 |
| 1935 | 2,530 |
| 1934 | 2,975 |
| 1933 | 2,788 |
| 1932 | 2,639 |
| 1931 | 2,805 |
| 1930 | 2,447 |
| 1929 | 2,621 |
| 1928 | 2,750 |
| 1927 | 2,578 |
| 1926 | 2,708 |
| 1925 | 2,547 |
| 1924 | 2,720 |
| 1923 | 2,275 |
| 1922 | 2,717 |
| 1921 | 2,505 |
| 1920 | 2,304 |
| 1919 | 2,470 |
| 1918 | 2,567 |
| 1917 | 2,537 |
| 1916 | 2,404 |
| 1915 | 2,386 |
| 1914 | 2,748 |
| 1913 | 2,350 |
| 1912 | 2,208 |
| 1911 | 2,511 |
| 1910 | 2,985 |
| 1909 | 2,474 |
| 1908 | 2,401 |
| 1907 | 2,412 |
| 1906 | 2,470 |
| 1905 | 2,543 |
| 1904 | 2,518 |
| 1903 | 2,506 |
| 1902 | 2,519 |
| 1901 | 2,488 |
| 1900 | 2,435 |
| 1899 | 2,408 |
| 1898 | 2,680 |
| 1897 | 2,554 |
| 1896 | 2,616 |
| 1895 | 2,502 |