1901-2000 Degrees Fahrenheit 1 56.0 56.0 0.0 55 74 1918,1963 1961 1926 1923 normal 1919,1972 2 58.1 59.8 -1.7 10 119 1963 2015,2018 1912 1926 bottom-tenth 1905 3 60.5 61.8 -1.3 15 114 1956 2018 1926 1926 bottom-third 1923,1926 4 59.5 61.6 -2.1 4 125 1903 2005 1912 1926 bottom-tenth 5 57.3 59.7 -2.4 2 127 1956 2018 1927 1926 bottom-tenth 6 54.3 56.4 -2.1 4 125 1926 2010 1926 1925 bottom-tenth 7 50.8 52.2 -1.4 12 117 1926 2010 1926 1925 bottom-tenth 1914,1997 8 47.0 47.8 -0.8 28 101 1926 2012 1926 1925 bottom-third 1895,1899,1906,1911,1935 9 43.5 44.2 -0.7 32 97 1912,1926 2012 1926 1925 bottom-third 1899,1900,1966 10 40.6 41.8 -1.2 21 107 1907 2012 1926 1925 bottom-third 11 39.8 41.0 -1.2 18 110 1905 2012 1926 1925 bottom-third 1935 12 40.1 41.4 -1.3 16 112 1905 2012 1926 1925 bottom-third 1911 18 44.5 46.4 -1.9 5 123 1918 2012 1926 1925 bottom-tenth 1907 24 39.2 41.3 -2.1 3 124 1905 2013 1918 1926 bottom-tenth 36 39.8 41.3 -1.5 5 121 1906,1907 2012 1918 1926 bottom-tenth 48 40.0 41.3 -1.3 7 118 1907 2013 1926 1925 bottom-tenth 1918 60 39.8 41.3 -1.5 3 121 1908 2013 1909 1926 bottom-tenth 1909