1991-2020 Degrees Fahrenheit 1 71.2 76.4 -5.2 10 119 1907 2022 1944 1969 bottom-tenth 1904 2 70.0 72.8 -2.8 45 84 1931 2022 1969 1968 normal 1918,1940,1945,1982 3 65.2 69.3 -4.1 14 115 1931 2006 1969 1968 bottom-third 1906,1919,1941,1983 4 62.2 66.0 -3.8 25 104 1903 2017 1969 1967 bottom-third 5 58.6 63.2 -4.6 12 117 1903 2017 1968 1969 bottom-tenth 1966 6 57.8 61.6 -3.8 23 105 1915 2017 1969 1967 bottom-third 1983,1987 7 57.7 61.4 -3.7 18 110 1973 2017 1969 1967 bottom-third 1906,1930,1947,1979 8 59.0 62.6 -3.6 18 110 1977 2017 1969 1969 bottom-third 1969,1978,1987 9 61.1 64.5 -3.4 22 106 1977 2017 1969 1967 bottom-third 1937 10 63.5 66.5 -3.0 25 103 1977 2017 1969 1967 bottom-third 1947 11 65.5 68.2 -2.7 31 97 1977 2017 1969 1967 bottom-third 1918,1978 12 66.7 69.4 -2.7 32 96 1977 2017 1969 1967 bottom-third 18 63.7 66.7 -3.0 19 108 1913,1914 2017 1969 1968 bottom-third 1903,1980 24 66.2 69.3 -3.1 16 111 1978 2017 1969 1968 bottom-third 36 66.1 69.3 -3.2 9 117 1906,1915,1977 2018 1960 1969 bottom-tenth 48 66.5 69.2 -2.7 13 112 1915 2020 1961 1969 bottom-third 1917,1921 60 66.6 69.1 -2.5 15 109 1979 2020 1962 1969 bottom-third 1903,1914,1918,1919