1901-2000 Degrees Fahrenheit 1 73.2 72.0 1.2 86 43 1976 1896 1976 1975 top-third 1908,1935,1938,1975 2 69.9 68.2 1.7 103 26 1997 1896 1976 1967 top-third 3 66.5 64.6 1.9 108 21 1983 2012 1976 1967 top-third 1918,1933 4 61.9 61.0 0.9 86 43 1960 2012 1975 1976 top-third 1950,1986 5 56.6 58.3 -1.7 21 108 1940 2012 1971 1976 bottom-third 1915,1981,1984,1993 6 54.6 56.7 -2.1 11 117 1978 2017 1970 1976 bottom-tenth 1915,1984 7 53.5 56.5 -3.0 2 126 1940 2017 1940 1976 bottom-tenth 8 54.2 57.6 -3.4 1 127 1977 2017 1977 1976 lowest 9 56.3 59.7 -3.4 1 127 1977 2017 1977 1976 lowest 10 58.6 61.7 -3.1 1 127 1977 2017 1977 1976 lowest 11 60.5 63.4 -2.9 1 127 1977 2017 1977 1976 lowest 12 61.8 64.7 -2.9 1 127 1977 2017 1977 1976 lowest 18 60.1 62.0 -1.9 1 126 1970,1977 2017 1970 1976 lowest 1970 24 62.9 64.7 -1.8 3 124 1969,1978 2017 1969 1976 bottom-tenth 36 63.3 64.7 -1.4 6 120 1970 2019 1971 1976 bottom-tenth 48 64.1 64.7 -0.6 13 112 1971 2020 1973 1976 bottom-third 1902,1962,1963,1964,1973,1985 60 64.1 64.7 -0.6 15 109 1971 2020 1973 1976 bottom-third 1985