1991-2020 Degrees Fahrenheit 1 59.3 58.4 0.9 105 25 1915 2017 1895 1896 top-third 2 53.8 54.8 -1.0 80 50 1964 2017 1895 1896 normal 1930,1963,1982,2001,2011 3 51.8 52.0 -0.2 88 40 1964 2017 1895 1896 top-third 1943 4 49.7 50.4 -0.7 69 58 1964 1907 1896 1896 normal 1901,1928,1974 5 49.9 51.2 -1.3 52 75 1913 2017 1896 1896 normal 6 51.9 53.7 -1.8 35 92 1977 2017 1896 1896 bottom-third 1933,1947,1960,1994 7 55.4 56.9 -1.5 37 90 1977 2017 1896 1896 bottom-third 1917,1980,1993,1998 8 58.4 60.1 -1.7 30 97 1977 2017 1896 1896 bottom-third 1898,1914,1917,1929,1933,1980,1991,2001 9 60.8 62.8 -2.0 20 107 1977 2017 1896 1896 bottom-third 1898,1903,1909,1949,1958,1964 10 62.6 64.9 -2.3 18 109 1977 2017 1896 1896 bottom-third 11 63.3 65.8 -2.5 11 116 1977 2017 1896 1896 bottom-tenth 12 63.5 65.8 -2.3 13 114 1913 2021 1896 1896 bottom-tenth 1906,1912,1914,1958,1985,1987 18 -99 61.8 -99 -99 -99 1913 2018 normal 24 -99 65.8 -99 -99 -99 1913,1914 2018 normal 36 -99 65.8 -99 -99 -99 1915 2019 normal 48 -99 65.7 -99 -99 -99 1915 2019,2020,2021 normal 60 -99 65.6 -99 -99 -99 1977 2021 normal