| Year | Temperature (°F) | to Normal (°F) |
|---|---|---|
| 2023 | 83.8 | 2.6 |
| 2022 | 82.8 | 1.6 |
| 2021 | 81.8 | 0.6 |
| 2020 | 78.7 | -2.5 |
| 2019 | 81.6 | 0.4 |
| 2018 | 80.2 | -1.0 |
| 2017 | 78.3 | -2.9 |
| 2016 | 81.9 | 0.7 |
| 2015 | 79.0 | -2.2 |
| 2014 | 80.2 | -0.9 |
| 2013 | 79.8 | -1.4 |
| 2012 | 82.7 | 1.6 |
| 2011 | 87.2 | 6.0 |
| 2010 | 85.7 | 4.6 |
| 2009 | 78.3 | -2.9 |
| 2008 | 79.7 | -1.4 |
| 2007 | 83.1 | 1.9 |
| 2006 | 86.3 | 5.1 |
| 2005 | 82.6 | 1.5 |
| 2004 | 76.8 | -4.4 |
| 2003 | 83.1 | 2.0 |
| 2002 | 81.3 | 0.1 |
| 2001 | 83.9 | 2.7 |
| 2000 | 84.7 | 3.6 |
| 1999 | 84.1 | 2.9 |
| 1998 | 84.5 | 3.3 |
| 1997 | 78.0 | -3.2 |
| 1996 | 79.7 | -1.5 |
| 1995 | 84.3 | 3.1 |
| 1994 | 79.3 | -1.9 |
| 1993 | 85.8 | 4.6 |
| 1992 | 75.6 | -5.6 |
| 1991 | 80.8 | -0.4 |
| 1990 | 82.5 | 1.4 |
| 1989 | 80.0 | -1.1 |
| 1988 | 82.5 | 1.4 |
| 1987 | 83.9 | 2.7 |
| 1986 | 79.6 | -1.5 |
| 1985 | 83.4 | 2.2 |
| 1983 | 86.4 | 5.2 |
| 1982 | 85.0 | 3.9 |
| 1978 | 84.2 | 3.1 |
| 1977 | 81.6 | 0.4 |
| 1976 | 79.7 | -1.5 |
| 1975 | 82.1 | 0.9 |
| 1974 | 78.9 | -2.3 |
| 1973 | 79.7 | -1.5 |
| 1972 | 82.4 | 1.3 |
| 1971 | 77.2 | -3.9 |
| 1970 | 84.2 | 3.0 |
| 1969 | 81.8 | 0.6 |
| 1968 | 79.6 | -1.5 |
| 1967 | 77.0 | -4.2 |
| 1966 | 76.7 | -4.4 |
| 1965 | 80.3 | -0.8 |
| 1964 | 81.1 | -0.1 |
| 1963 | 84.2 | 3.1 |
| 1962 | 82.7 | 1.6 |
| 1961 | 78.6 | -2.5 |
| 1960 | 81.1 | -0.1 |
| 1959 | 82.1 | 1.0 |
| 1958 | 81.2 | 0.0 |
| 1957 | 82.4 | 1.2 |
| 1956 | 87.4 | 6.2 |
| 1955 | 82.6 | 1.5 |
| 1954 | 89.2 | 8.0 |
| 1953 | 81.6 | 0.5 |
| 1952 | 84.3 | 3.1 |
| 1951 | 84.7 | 3.6 |
| 1950 | 77.1 | -4.1 |
| 1949 | 79.2 | -2.0 |
| 1948 | 79.2 | -2.0 |
| 1947 | 87.2 | 6.0 |
| 1946 | 82.3 | 1.1 |
| 1945 | 80.6 | -0.6 |
| 1944 | 82.5 | 1.4 |
| 1943 | 87.8 | 6.7 |
| 1942 | 80.5 | -0.6 |
| 1941 | 82.1 | 1.0 |
| 1940 | 79.6 | -1.5 |
| 1939 | 83.1 | 1.9 |
| 1938 | 85.3 | 4.1 |
| 1937 | 85.6 | 4.5 |
| 1936 | 90.3 | 9.1 |
| 1935 | 84.1 | 2.9 |
| 1934 | 87.8 | 6.6 |
| 1933 | 80.5 | -0.6 |
| 1932 | 83.6 | 2.4 |
| 1931 | 78.4 | -2.8 |
| 1930 | 84.4 | 3.3 |
| 1929 | 84.1 | 2.9 |
| 1928 | 82.0 | 0.8 |
| 1927 | 77.4 | -3.7 |
| 1926 | 82.1 | 1.0 |
| 1925 | 81.5 | 0.4 |
| 1924 | 85.1 | 3.9 |
| 1923 | 85.5 | 4.3 |
| 1922 | 83.3 | 2.2 |
| 1921 | 84.2 | 3.0 |
| 1919 | 82.9 | 1.7 |
| 1918 | 86.1 | 5.0 |
| 1917 | 78.0 | -3.2 |
| 1916 | 85.5 | 4.3 |
| 1915 | 73.5 | -7.7 |
| 1914 | 81.8 | 0.6 |
| 1908 | 81.3 | 0.1 |
| 1907 | 85.3 | 4.1 |
| 1906 | 77.4 | -3.7 |
| 1905 | 79.7 | -1.5 |