1901-2000 Degrees Fahrenheit 1 38.0 40.1 -2.1 36 94 2013 1987 1909 1915 bottom-third 2 28.0 31.8 -3.8 22 108 1899 1910 1909 1915 bottom-third 2014 3 19.8 24.5 -4.7 16 114 1899 2012 1914 1915 bottom-third 4 13.3 19.4 -6.1 7 123 1936 2012 1904 1915 bottom-tenth 5 13.3 17.7 -4.4 13 116 1936 2012 1907 1915 bottom-tenth 6 15.5 19.0 -3.5 18 111 1936 2012 1912 1915 bottom-third 7 19.7 22.5 -2.8 18 111 1936 2012 1912 1915 bottom-third 8 24.1 26.6 -2.5 17 112 1936 2012 1912 1915 bottom-third 2014 9 28.4 31.0 -2.6 16 113 1936 2012 1912 1915 bottom-third 10 31.8 34.7 -2.9 11 118 1936 2012 1912 1915 bottom-tenth 11 34.0 37.2 -3.2 8 121 1936 2012 1912 1915 bottom-tenth 1979 12 35.4 38.5 -3.1 6 123 1936 2012 1904 1915 bottom-tenth 18 30.5 32.0 -1.5 22 106 1917,1951 2017 1913 1915 bottom-third 1928 24 37.7 38.5 -0.8 31 97 1917 2017 1913 1915 bottom-third 1930,1972 36 38.0 38.5 -0.5 41 86 1918 2000 1914 1915 bottom-third 48 37.9 38.4 -0.5 35 91 1899 2001 1915 1915 bottom-third 1915,1921,1936,1967,1971 60 37.4 38.4 -1.0 12 113 1920 2002 1913 1915 bottom-tenth 1906,1913,1969