1901-2000 Degrees Fahrenheit 1 75.5 75.6 -0.1 57 72 1974 1914 1976 1971 normal 1958,1978,1993 2 72.7 71.9 0.8 83 46 1976 1899 1976 1964 normal 1956,2014 3 69.3 67.8 1.5 99 30 1997 1896 1976 1964 top-third 2016 4 65.5 63.6 1.9 112 17 1960 2012 1976 1953 top-third 1902,1945,2006 5 60.5 59.4 1.1 90 39 1960 2012 1976 1957 top-third 1986 6 54.9 56.2 -1.3 26 103 1940 2012 1971 1976 bottom-third 1985 7 52.6 54.2 -1.6 15 113 1978 2012 1970 1976 bottom-third 1926,1968,1996,2014 8 51.2 53.6 -2.4 3 125 1940 2017 1960 1976 bottom-tenth 1960 9 51.5 54.4 -2.9 3 125 1978 2017 1940 1976 bottom-tenth 10 53.2 56.2 -3.0 1 127 1977 2017 1977 1976 lowest 11 55.1 58.1 -3.0 1 127 1977 2017 1977 1976 lowest 12 56.8 59.9 -3.1 1 127 1977 2017 1977 1976 lowest 18 56.3 58.6 -2.3 1 127 1977 2017 1977 1976 lowest 24 57.8 59.9 -2.1 3 124 1978 2017 1969 1976 bottom-tenth 36 58.3 59.8 -1.5 5 121 1970,1978,1979 2018 1970 1976 bottom-tenth 1969 48 59.0 59.8 -0.8 17 108 1980 2019 1972 1976 bottom-third 1965,1984,1985 60 59.0 59.9 -0.9 17 107 1980 2020 1973 1976 bottom-third 1965,1966