# Cooling degree days in Maryland

Cooling degree days in Maryland was 1,209 degree days (base 65°F) in 2025. Source: NOAA National Centers for Environmental Information.

- Indicator id: `cooling_degree_days_annual`
- Place id: `us-state-24`
- 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/18/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/18/cdd/12/12/1895-2025/data.json. Retrieved 2026-10-12.
- Web page: https://invokely.ai/en/cooling-degree-days/maryland
- API: https://invokely.ai/api/v1/series?indicator=cooling_degree_days_annual&place=us-state-24

| Period | degree days (base 65°F) |
|---|---:|
| 2025 | 1,209 |
| 2024 | 1,343 |
| 2023 | 1,105 |
| 2022 | 1,212 |
| 2021 | 1,303 |
| 2020 | 1,251 |
| 2019 | 1,366 |
| 2018 | 1,361 |
| 2017 | 1,112 |
| 2016 | 1,329 |
| 2015 | 1,242 |
| 2014 | 973 |
| 2013 | 1,042 |
| 2012 | 1,310 |
| 2011 | 1,334 |
| 2010 | 1,459 |
| 2009 | 992 |
| 2008 | 1,086 |
| 2007 | 1,264 |
| 2006 | 1,143 |
| 2005 | 1,272 |
| 2004 | 1,121 |
| 2003 | 986 |
| 2002 | 1,264 |
| 2001 | 975 |
| 2000 | 879 |
| 1999 | 1,147 |
| 1998 | 1,171 |
| 1997 | 871 |
| 1996 | 896 |
| 1995 | 1,143 |
| 1994 | 1,032 |
| 1993 | 1,143 |
| 1992 | 755 |
| 1991 | 1,275 |
| 1990 | 960 |
| 1989 | 996 |
| 1988 | 1,143 |
| 1987 | 1,206 |
| 1986 | 1,078 |
| 1985 | 950 |
| 1984 | 928 |
| 1983 | 1,072 |
| 1982 | 826 |
| 1981 | 884 |
| 1980 | 1,119 |
| 1979 | 794 |
| 1978 | 946 |
| 1977 | 1,047 |
| 1976 | 815 |
| 1975 | 958 |
| 1974 | 807 |
| 1973 | 1,091 |
| 1972 | 803 |
| 1971 | 944 |
| 1970 | 1,070 |
| 1969 | 974 |
| 1968 | 985 |
| 1967 | 748 |
| 1966 | 980 |
| 1965 | 939 |
| 1964 | 902 |
| 1963 | 798 |
| 1962 | 830 |
| 1961 | 1,019 |
| 1960 | 911 |
| 1959 | 1,194 |
| 1958 | 831 |
| 1957 | 1,015 |
| 1956 | 812 |
| 1955 | 1,109 |
| 1954 | 979 |
| 1953 | 1,051 |
| 1952 | 1,049 |
| 1951 | 929 |
| 1950 | 774 |
| 1949 | 1,089 |
| 1948 | 886 |
| 1947 | 921 |
| 1946 | 761 |
| 1945 | 935 |
| 1944 | 1,130 |
| 1943 | 1,179 |
| 1942 | 1,022 |
| 1941 | 1,019 |
| 1940 | 807 |
| 1939 | 1,077 |
| 1938 | 976 |
| 1937 | 980 |
| 1936 | 1,090 |
| 1935 | 917 |
| 1934 | 1,140 |
| 1933 | 1,060 |
| 1932 | 987 |
| 1931 | 1,137 |
| 1930 | 1,228 |
| 1929 | 821 |
| 1928 | 855 |
| 1927 | 649 |
| 1926 | 865 |
| 1925 | 1,046 |
| 1924 | 717 |
| 1923 | 954 |
| 1922 | 982 |
| 1921 | 1,112 |
| 1920 | 798 |
| 1919 | 918 |
| 1918 | 880 |
| 1917 | 770 |
| 1916 | 810 |
| 1915 | 780 |
| 1914 | 914 |
| 1913 | 869 |
| 1912 | 803 |
| 1911 | 1,104 |
| 1910 | 833 |
| 1909 | 748 |
| 1908 | 851 |
| 1907 | 645 |
| 1906 | 1,023 |
| 1905 | 847 |
| 1904 | 755 |
| 1903 | 683 |
| 1902 | 823 |
| 1901 | 1,013 |
| 1900 | 1,280 |
| 1899 | 975 |
| 1898 | 1,126 |
| 1897 | 759 |
| 1896 | 957 |
| 1895 | 935 |