1901-2000 Degrees Fahrenheit 1 27.4 23.7 3.7 105 25 1937 1986 1895 1896 top-third 2020 2 24.2 24.5 -0.3 45 84 1979 1981 1896 1896 normal 1952,1957,1977 3 25.8 27.5 -1.7 24 105 1973 2018 1896 1896 bottom-third 1988 4 30.7 32.3 -1.6 23 106 1899 2018 1896 1896 bottom-third 1915 5 36.3 37.3 -1.0 28 101 1899 2022 1896 1896 bottom-third 1915 6 41.1 41.9 -0.8 30 99 1899 2022 1896 1896 bottom-third 1897,1898,1920,1972,1994,2007 7 44.2 45.5 -1.3 14 115 1913 2022 1896 1896 bottom-third 1926,1993 8 46.0 47.5 -1.5 12 117 1913 2022 1896 1896 bottom-tenth 9 46.6 48.0 -1.4 14 115 1913 2022 1896 1896 bottom-third 1910 10 46.4 47.4 -1.0 21 108 1913 2022 1896 1896 bottom-third 1904,1908 11 45.1 46.2 -1.1 18 111 1913 2013 1896 1896 bottom-third 12 42.9 44.6 -1.7 7 122 1913 2018 1896 1896 bottom-tenth 1899,1910 18 -99 43.7 -99 -99 -99 1913 1935 normal 24 -99 44.6 -99 -99 -99 1914,1925 2018 normal 36 -99 44.6 -99 -99 -99 1914 2018 normal 48 -99 44.5 -99 -99 -99 1916 2019 normal 60 -99 44.5 -99 -99 -99 1917 2019 normal