1901-2000 Degrees Fahrenheit 1 80.8 76.0 4.8 122 7 1915 1936 1917 1900 top-tenth 2 78.6 77.0 1.6 104 25 1967 1936 1917 1916 top-third 3 77.4 75.9 1.5 101 28 1915,1927 1936 1917 1914 top-third 4 75.3 73.2 2.1 112 17 1967 1936 1917 1914 top-third 5 70.5 69.6 0.9 83 46 1907 2010 1917 1914 normal 2019 6 67.2 65.5 1.7 114 15 1904 2012 1917 1918 top-third 1953,1986 7 62.7 61.1 1.6 106 23 1904 2012 1917 1918 top-third 8 56.9 57.3 -0.4 42 87 1912 2012 1917 1916 bottom-third 1903,1972,1993,2013,2015 9 53.2 54.8 -1.6 16 112 1904 2012 1917 1916 bottom-third 1905,1970 10 52.4 53.8 -1.4 19 109 1904 2012 1917 1917 bottom-third 1917,1963 11 52.2 54.1 -1.9 6 122 1904 2012 1912 1917 bottom-tenth 12 53.5 55.4 -1.9 6 122 1904 2012 1912 1917 bottom-tenth 18 56.7 58.7 -2.0 2 126 1904 2012 1904 1917 bottom-tenth 24 53.7 55.4 -1.7 4 123 1979 2017 1905 1917 bottom-tenth 1904 36 54.4 55.4 -1.0 9 117 1979 2018 1906 1917 bottom-tenth 1960,1969 48 54.3 55.3 -1.0 9 116 1980 2019 1907 1917 bottom-tenth 1978 60 54.8 55.3 -0.5 19 105 1906 2020 1908 1917 bottom-third 1903,1961,1964,1983,1997