1901-2000 Degrees Fahrenheit 1 82.2 80.8 1.4 103 26 1967 1902,1930 1976 1954 top-third 2 81.6 79.7 1.9 115 14 1961 1902 1976 1954 top-third 1931,1943,1954 3 78.9 77.0 1.9 112 17 1976 1902 1976 1943 top-third 1986 4 75.7 73.8 1.9 118 11 1961 1902,2015 1976 1930 top-tenth 1905,1915,1930,2016 5 72.2 70.4 1.8 114 15 1971 2015 1976 1945 top-third 1897 6 67.9 67.0 0.9 90 39 1971 1927 1976 1957 top-third 1943,1954 7 63.1 64.1 -1.0 28 101 1940 2017 1976 1975 bottom-third 1900,1992 8 60.6 62.1 -1.5 14 114 1940,1961 2017 1971 1976 bottom-third 1983 9 59.1 61.4 -2.3 6 122 1940 2017 1970 1976 bottom-tenth 1969 10 59.1 61.7 -2.6 1 127 1977 2017 1977 1976 lowest 11 60.4 63.0 -2.6 1 127 1977 2017 1977 1976 lowest 12 61.9 64.5 -2.6 1 127 1977 2017 1977 1976 lowest 18 63.4 65.3 -1.9 4 124 1970 2017 1970 1976 bottom-tenth 24 62.6 64.5 -1.9 5 122 1969,1970,1978 2017 1971 1976 bottom-tenth 36 62.9 64.4 -1.5 6 120 1970 2018 1971 1976 bottom-tenth 48 63.6 64.4 -0.8 20 105 1971 2019,2020 1973 1976 bottom-third 1982 60 63.6 64.4 -0.8 20 104 1970,1971 2020 1973 1976 bottom-third 1983