| Year | Temperature (°F) | to Normal (°F) |
|---|---|---|
| 2023 | 32.4 | 4.7 |
| 2022 | 26.8 | -0.9 |
| 2021 | 27.8 | 0.1 |
| 2020 | 26.3 | -1.4 |
| 2019 | 26.6 | -1.2 |
| 2018 | 31.2 | 3.4 |
| 2017 | 30.4 | 2.7 |
| 2016 | 23.8 | -3.9 |
| 2015 | 31.2 | 3.5 |
| 2014 | 24.0 | -3.8 |
| 2013 | 14.0 | -13.7 |
| 2012 | 31.4 | 3.6 |
| 2011 | 23.5 | -4.2 |
| 2010 | 20.3 | -7.4 |
| 2009 | 24.4 | -3.3 |
| 2008 | 21.2 | -6.5 |
| 2007 | 22.3 | -5.4 |
| 2006 | 31.9 | 4.1 |
| 2005 | 36.6 | 8.9 |
| 2004 | 21.4 | -6.4 |
| 2003 | 35.0 | 7.2 |
| 2002 | 27.6 | -0.2 |
| 2001 | 27.7 | 0.0 |
| 2000 | 32.5 | 4.7 |
| 1999 | 32.6 | 4.9 |
| 1998 | 33.1 | 5.4 |
| 1997 | 30.4 | 2.6 |
| 1996 | 29.8 | 2.1 |
| 1995 | 33.4 | 5.6 |
| 1994 | 31.4 | 3.7 |
| 1993 | 31.6 | 3.8 |
| 1992 | 19.6 | -8.1 |
| 1991 | 17.2 | -10.5 |
| 1990 | 28.2 | 0.5 |
| 1989 | 19.9 | -7.8 |
| 1988 | 17.1 | -10.6 |
| 1987 | 27.1 | -0.6 |
| 1986 | 33.8 | 6.1 |
| 1985 | 30.8 | 3.0 |
| 1984 | 20.3 | -7.4 |
| 1983 | 33.9 | 6.2 |
| 1982 | 25.6 | -2.1 |
| 1981 | 36.6 | 8.8 |
| 1980 | 32.3 | 4.6 |
| 1979 | 16.3 | -11.4 |
| 1978 | 29.1 | 1.4 |
| 1977 | 23.6 | -4.1 |
| 1976 | 21.4 | -6.3 |
| 1975 | 19.7 | -8.0 |
| 1974 | 16.5 | -11.2 |
| 1973 | 11.2 | -16.5 |
| 1972 | 29.7 | 2.0 |
| 1971 | 27.4 | -0.4 |
| 1970 | 29.0 | 1.3 |
| 1969 | 28.2 | 0.5 |
| 1968 | 15.1 | -12.6 |
| 1967 | 23.6 | -4.2 |
| 1966 | 24.2 | -3.5 |
| 1965 | 32.0 | 4.3 |
| 1964 | 25.1 | -2.6 |
| 1963 | 11.8 | -15.9 |
| 1962 | 22.6 | -5.1 |
| 1961 | 29.0 | 1.3 |
| 1960 | 26.3 | -1.4 |
| 1959 | 29.1 | 1.3 |
| 1958 | 29.5 | 1.7 |
| 1957 | 24.6 | -3.1 |
| 1956 | 36.4 | 8.7 |
| 1955 | 23.6 | -4.1 |
| 1954 | 32.4 | 4.7 |
| 1953 | 33.2 | 5.5 |
| 1952 | 26.6 | -1.1 |
| 1951 | 25.0 | -2.7 |
| 1950 | 22.8 | -4.9 |
| 1949 | 18.6 | -9.1 |
| 1948 | 25.2 | -2.6 |
| 1947 | 21.8 | -6.0 |
| 1946 | 25.8 | -1.9 |
| 1945 | 31.7 | 4.0 |
| 1944 | 25.4 | -2.3 |
| 1943 | 32.0 | 4.3 |
| 1942 | 28.2 | 0.4 |
| 1941 | 31.8 | 4.0 |
| 1940 | 28.2 | 0.5 |
| 1939 | 27.1 | -0.6 |
| 1938 | 32.1 | 4.4 |
| 1937 | 14.8 | -13.0 |
| 1936 | 27.1 | -0.6 |
| 1935 | 33.7 | 6.0 |
| 1934 | 34.3 | 6.5 |
| 1933 | 20.0 | -7.8 |
| 1932 | 21.5 | -6.3 |
| 1931 | 27.3 | -0.4 |
| 1930 | 18.9 | -8.9 |
| 1929 | 19.2 | -8.5 |
| 1928 | 30.3 | 2.5 |
| 1927 | 29.0 | 1.2 |
| 1926 | 28.2 | 0.5 |
| 1925 | 13.1 | -14.6 |
| 1924 | 17.0 | -10.8 |
| 1923 | 33.2 | 5.5 |
| 1922 | 26.6 | -1.1 |
| 1921 | 30.8 | 3.0 |
| 1920 | 17.9 | -9.9 |
| 1919 | 19.3 | -8.4 |
| 1918 | 22.9 | -4.8 |
| 1917 | 13.9 | -13.9 |
| 1916 | 22.2 | -5.5 |
| 1915 | 20.0 | -7.8 |
| 1914 | 23.9 | -3.8 |
| 1913 | 15.6 | -12.1 |
| 1912 | 23.7 | -4.1 |
| 1911 | 31.2 | 3.5 |
| 1910 | 22.5 | -5.2 |
| 1909 | 29.9 | 2.2 |
| 1908 | 26.3 | -1.5 |
| 1907 | 34.7 | 6.9 |
| 1906 | 26.0 | -1.7 |
| 1905 | 23.7 | -4.0 |
| 1904 | 25.1 | -2.6 |
| 1903 | 23.5 | -4.3 |
| 1902 | 29.8 | 2.1 |
| 1901 | 28.0 | 0.3 |
| 1900 | 32.9 | 5.2 |