1901-2000 Degrees Fahrenheit 1 64.9 61.2 3.7 111 18 1945 2012 2014 2013 top-third 2 57.4 56.6 0.8 85 44 1907 2018 2011 2014 normal 1922,1961,1972,1997 3 53.2 51.8 1.4 94 35 1917 2012 2014 2012 top-third 1943,1974,2007 4 50.0 47.3 2.7 117 12 1917 2012 2014 2012 top-tenth 1986,2002,2007 5 46.4 43.3 3.1 122 7 1903 2012 2014 2012 top-tenth 6 43.6 40.1 3.5 122 7 1917 2012 2014 2012 top-tenth 7 41.3 38.0 3.3 122 6 1917 1934 2014 2012 top-tenth 2017 8 40.3 37.4 2.9 120 8 1917 1934 2014 2012 top-tenth 9 41.4 38.4 3.0 121 7 1917 1934 2014 2012 top-tenth 2006 10 43.3 40.3 3.0 121 7 1917 1934 2014 2012 top-tenth 2006 11 45.2 42.6 2.6 118 10 1917 1934 2014 2012 top-tenth 12 47.1 44.6 2.5 119 9 1917 1934 2014 2012 top-tenth 2004,2016 18 45.2 43.1 2.1 114 14 1913 2018 2014 2013 top-third 1934 24 46.4 44.6 1.8 111 16 1913 2018 2014 2013 top-third 2002 36 46.2 44.6 1.6 109 17 1914 2018 2012 2014 top-third 2007,2021 48 46.6 44.6 2.0 118 7 1915 2018 2014 2006 top-tenth 2006,2021 60 46.5 44.5 2.0 113 11 1917 2018 2014 2006 top-tenth 2002