1901-2000 Degrees Fahrenheit 1 76.9 79.2 -2.3 10 119 1967 2007 1976 1983 bottom-tenth 2 77.3 79.5 -2.2 8 121 1967 1954,2010 1976 1983 bottom-tenth 3 76.9 78.6 -1.7 11 118 1967 2010 1976 1983 bottom-tenth 4 74.4 76.3 -1.9 8 121 1976 1902 1976 1983 bottom-tenth 1946,1972 5 71.3 73.3 -2.0 5 124 1961 2010 1976 1983 bottom-tenth 1973 6 68.0 69.9 -1.9 4 125 1971 1921 1976 1983 bottom-tenth 1976 7 65.0 66.4 -1.4 11 118 1947,1958 2012 1983 1982 bottom-tenth 1901,1912,1979,2013 8 61.6 63.5 -1.9 8 121 1940 2012 1979 1983 bottom-tenth 1912,1961,2014 9 59.1 61.3 -2.2 3 125 1940 2012 1978 1983 bottom-tenth 1958,1961 10 58.3 60.3 -2.0 2 126 1940 2012 1978 1983 bottom-tenth 1961,1978 11 58.7 60.5 -1.8 4 124 1940 2017 1978 1983 bottom-tenth 1931 12 59.7 61.6 -1.9 1 127 1940,1958,1968,1978,1984 2017 1978 1983 lowest 1940,1958,1968,1978 18 62.6 64.4 -1.8 2 126 1977 2017 1977 1983 bottom-tenth 24 60.3 61.6 -1.3 7 120 1978 2017 1979 1983 bottom-tenth 1968 36 60.3 61.6 -1.3 5 121 1978 2018 1980 1983 bottom-tenth 1971,1980 48 60.4 61.6 -1.2 7 118 1971,1979 2019 1981 1983 bottom-tenth 1969,1981 60 60.5 61.6 -1.1 7 117 1980 2020 1982 1983 bottom-tenth 1972