1901-2000 Degrees Fahrenheit 1 57.2 54.5 2.7 102 27 1917 1911 1895 1895 top-third 1982,2013 2 50.0 48.6 1.4 90 39 1907 2010 1895 1895 top-third 1910 3 41.5 42.6 -1.1 35 94 1926 2012 1895 1895 bottom-third 1960,2005 4 34.7 37.2 -2.5 15 114 1926 2012 1895 1895 bottom-third 1905,1912 5 31.3 33.7 -2.4 16 113 1940 2012 1895 1895 bottom-third 1934 6 -99 32.2 -99 -99 -99 1904 2012 normal 7 -99 32.8 -99 -99 -99 1904 2012 normal 8 -99 34.7 -99 -99 -99 1905 2012 normal 9 -99 37.4 -99 -99 -99 1905,1918 2012 normal 10 -99 40.3 -99 -99 -99 1904,1905 2012 normal 11 -99 42.8 -99 -99 -99 1904,1905 2012 normal 12 -99 44.5 -99 -99 -99 1904 2012 normal 18 -99 40.4 -99 -99 -99 1905 2017 normal 24 -99 44.5 -99 -99 -99 1905 2013 normal 36 -99 44.5 -99 -99 -99 1906 2013 normal 48 -99 44.5 -99 -99 -99 1907 2013 normal 60 -99 44.5 -99 -99 -99 1908 2020 normal