1901-2000 Degrees Fahrenheit 1 42.3 43.7 -1.4 50 80 1940 1950 1895 1896 normal 1931,1996 2 42.8 44.4 -1.6 41 88 1977 1950 1896 1896 bottom-third 1903,1926,1996 3 46.1 46.9 -0.8 45 84 1977 1932 1896 1896 normal 1954,2018 4 49.1 50.9 -1.8 24 105 1977 1932 1896 1896 bottom-third 1915,1944,2010 5 54.7 55.5 -0.8 42 87 1977 1932 1896 1896 bottom-third 6 58.9 59.4 -0.5 43 86 1977 1932,2017 1896 1896 bottom-third 1908,1954,2018 7 61.7 62.3 -0.6 39 90 1977 2017 1896 1896 bottom-third 1931,1954,1998 8 63.6 64.1 -0.5 39 90 1977 2017 1896 1896 bottom-third 1908,1944,1981,1994,2018 9 64.2 64.7 -0.5 37 92 1977 2017 1896 1896 bottom-third 1899,1931,1985 10 64.0 64.4 -0.4 38 91 1977 2017 1896 1896 bottom-third 1938,1948,1958,1978 11 63.0 63.4 -0.4 37 92 1977 2017 1896 1896 bottom-third 1899,1905,1915,1921 12 60.7 62.0 -1.3 14 115 1977 2017 1896 1896 bottom-third 18 -99 61.2 -99 -99 -99 1977 1923,2017 normal 24 -99 62.0 -99 -99 -99 1970 1923 normal 36 -99 62.0 -99 -99 -99 1970 2021 normal 48 -99 62.0 -99 -99 -99 1970 2020 normal 60 -99 62.0 -99 -99 -99 1970 2020,2021 normal