1901-2000 Degrees Fahrenheit 1 57.8 58.8 -1.0 50 79 1917,1952 1919 1978 1975 normal 1901 2 63.1 64.5 -1.4 29 100 1976 1941 1976 1978 bottom-third 1895,1982 3 67.0 68.3 -1.3 19 110 1976 2007 1976 1978 bottom-third 1901,1996 4 69.1 70.5 -1.4 11 118 1967 2016 1976 1978 bottom-tenth 1950 5 69.6 71.2 -1.6 7 122 1976 2016 1976 1978 bottom-tenth 1961 6 68.8 70.3 -1.5 9 120 1976 1936,1941,2007,2016,2018 1976 1978 bottom-tenth 1989,1994 7 67.2 68.5 -1.3 11 118 1976 1941 1976 1978 bottom-tenth 8 65.0 66.0 -1.0 16 113 1917 2016 1976 1978 bottom-third 1928,1958,1989 9 61.5 63.1 -1.6 5 124 1917 2016 1960 1978 bottom-tenth 10 58.3 60.5 -2.2 3 126 1940 1921 1978 1977 bottom-tenth 1958 11 56.6 58.6 -2.0 3 125 1940,1978 2016 1978 1977 bottom-tenth 12 56.2 57.7 -1.5 7 121 1940 2016 1978 1977 bottom-tenth 1917,1964 18 60.9 61.9 -1.0 13 115 1977 2017 1978 1976 bottom-tenth 1917,1970,1982,1993 24 56.0 57.7 -1.7 1 126 1978,1979 2017 1978 1978 lowest 1978 36 56.1 57.7 -1.6 1 125 1979 2018 1979 1978 lowest 48 56.2 57.7 -1.5 1 124 1979 2019 1979 1978 lowest 60 56.5 57.6 -1.1 1 123 1964,1970,1979,1980,1981 2020 1970 1978 lowest 1964,1970,1980,1981