1901-2000 Degrees Fahrenheit 1 47.1 48.4 -1.3 44 86 1917 1934 1918 1919 normal 1996 2 39.1 43.7 -4.6 3 127 1917 1934 1917 1919 bottom-tenth 1909 3 34.9 38.8 -3.9 4 126 1917 1934 1917 1919 bottom-tenth 4 31.8 34.7 -2.9 11 119 1917 1934,1992 1917 1919 bottom-tenth 1909,1955,1964 5 29.8 31.4 -1.6 27 103 1917 1934 1917 1919 bottom-third 6 27.4 29.6 -2.2 16 113 1917 1934 1917 1919 bottom-third 7 26.8 29.5 -2.7 9 120 1917 1934 1917 1919 bottom-tenth 8 27.6 31.2 -3.6 5 124 1917 1934 1917 1919 bottom-tenth 1979 9 30.7 33.6 -2.9 6 123 1917 1934 1917 1919 bottom-tenth 10 34.1 36.6 -2.5 7 122 1917 1934 1917 1919 bottom-tenth 1973 11 37.2 39.2 -2.0 9 120 1917 1934 1917 1919 bottom-tenth 12 39.2 40.8 -1.6 14 115 1917 1934 1917 1919 bottom-third 1924 18 36.4 37.0 -0.6 32 96 1917 2016 1918 1919 bottom-third 1898,1925,1956,1969,1976,1994 24 40.2 40.7 -0.5 34 94 1917 1935 1918 1919 bottom-third 1937,1953,1969 36 40.3 40.7 -0.4 33 94 1918 2017 1919 1912 bottom-third 1907,1912,1953,1979,1980,1985,1986 48 39.4 40.7 -1.3 5 121 1899 2018 1919 1916 bottom-tenth 60 39.3 40.7 -1.4 2 123 1917 2016,2017,2018 1917 1919 bottom-tenth