1901-2000 Degrees Fahrenheit 1 24.8 28.3 -3.5 31 98 1899 2012 1996 2001 bottom-third 1934,1952,1980 2 25.8 22.4 3.4 98 31 1899 2012 2001 2000 top-third 3 25.2 19.0 6.2 119 10 1912 2012 2001 2000 top-tenth 2016 4 25.8 18.9 6.9 123 5 1899 2012 2001 1998 top-tenth 5 29.2 21.4 7.8 125 3 1912 2012 2001 2002 top-tenth 6 32.1 25.6 6.5 125 3 1912 2012 2001 2002 top-tenth 7 35.7 30.3 5.4 124 4 1912 2012 2001 2002 top-tenth 8 39.9 34.8 5.1 124 4 1912 2012 2001 2002 top-tenth 9 43.3 38.6 4.7 124 4 1904,1912 2012 2001 2002 top-tenth 10 45.4 41.1 4.3 124 4 1904 2012 2001 2002 top-tenth 11 46.4 42.4 4.0 124 4 1904 2012 2001 2002 top-tenth 12 46.5 42.4 4.1 125 3 1918 2012 2001 2002 top-tenth 18 39.5 36.8 2.7 118 9 1918 2017 2001 2000 top-tenth 24 44.5 42.4 2.1 116 11 1918 2017 2001 2000 top-tenth 36 45.0 42.3 2.7 122 4 1918 2000 2001 2000 top-tenth 2012 48 45.3 42.3 3.0 124 1 1918 2002 2001 2002 highest 60 45.1 42.3 2.8 123 1 1920,1929 2002 2001 2002 highest