1901-2000 Degrees Fahrenheit 1 17.1 10.8 6.3 101 28 1983 1939 1906 1907 top-third 2 22.4 18.3 4.1 100 29 1927 1999 1906 1899 top-third 1918,1979 3 29.0 26.7 2.3 90 39 1919 2015 1906 1904 top-third 1979,2003 4 34.7 33.9 0.8 70 59 1919 2015 1906 1905 normal 1990 5 40.4 40.2 0.2 57 72 1985 2015 1906 1905 normal 1936,1980 6 44.6 44.9 -0.3 47 82 1985 2015 1906 1905 normal 1971,1986 7 47.0 47.4 -0.4 41 88 1985 2021 1906 1906 bottom-third 1906,1910,1995,2008,2013 8 46.5 48.1 -1.6 24 105 1927 2021 1903 1906 bottom-third 9 44.7 47.2 -2.5 8 121 1927 2015 1907 1906 bottom-tenth 10 42.4 44.8 -2.4 9 120 1951 2021 1896 1906 bottom-tenth 11 39.3 41.6 -2.3 10 119 1917 1987 1904 1906 bottom-tenth 1919 12 35.5 38.5 -3.0 5 124 1950 1987 1907 1906 bottom-tenth 18 38.5 40.6 -2.1 12 116 1917 2016 1904 1906 bottom-tenth 1903 24 36.9 38.5 -1.6 15 113 1917,1951 2016 1905 1906 bottom-third 36 37.2 38.5 -1.3 14 113 1918,1951 2017 1906 1906 bottom-third 1906,1909,1913 48 36.8 38.5 -1.7 7 119 1919 2001 1899 1906 bottom-tenth 60 36.7 38.4 -1.7 3 122 1899 2002 1899 1906 bottom-tenth 1919