1901-2000 Degrees Fahrenheit 1 71.1 72.0 -0.9 45 84 1976 1896 1895 1895 normal 1926,2017 2 68.3 68.2 0.1 59 70 1997 1896 1895 1895 normal 1945,1969,1979 3 64.5 64.6 -0.1 57 72 1983 2012 1895 1895 normal 1912,1951,1972,1973,1986,1997,2008 4 58.5 61.0 -2.5 10 119 1960 2012 1895 1895 bottom-tenth 1931 5 56.0 58.3 -2.3 13 116 1940 2012 1895 1895 bottom-tenth 1901,1912 6 -99 56.7 -99 -99 -99 1978 2017 normal 7 -99 56.5 -99 -99 -99 1940 2017 normal 8 -99 57.6 -99 -99 -99 1977 2017 normal 9 -99 59.7 -99 -99 -99 1977 2017 normal 10 -99 61.7 -99 -99 -99 1977 2017 normal 11 -99 63.4 -99 -99 -99 1977 2017 normal 12 -99 64.7 -99 -99 -99 1977 2017 normal 18 -99 62.0 -99 -99 -99 1970,1977 2017 normal 24 -99 64.7 -99 -99 -99 1969,1978 2017 normal 36 -99 64.7 -99 -99 -99 1970 2019 normal 48 -99 64.7 -99 -99 -99 1971 2020 normal 60 -99 64.7 -99 -99 -99 1971 2020 normal