1901-2000 Degrees Fahrenheit 1 42.0 42.5 -0.5 48 82 1920 1943,1946 2008 2007 normal 1916 2 39.6 38.1 1.5 88 42 1917 2012 2008 2007 top-third 1936 3 37.1 34.5 2.6 108 22 1903 2017 2008 2007 top-third 1910 4 34.9 31.8 3.1 113 17 1917,1937 1986 2008 2006 top-third 2016 5 33.0 30.5 2.5 109 20 1899 1934,1981 2008 2006 top-third 6 33.9 31.0 2.9 118 11 1899 1934 2008 2006 top-tenth 1943,1986,2006,2022 7 35.8 33.2 2.6 114 15 1899 1934 2008 2006 top-third 8 38.5 36.2 2.3 114 15 1899 1934 2008 2006 top-third 1907 9 41.5 39.5 2.0 115 14 1899 1934 2008 2006 top-third 1911 10 44.3 42.2 2.1 115 14 1899 1934 2008 2006 top-third 1935 11 45.9 43.9 2.0 111 18 1913 1934,2017 2008 2006 top-third 2002 12 46.3 44.6 1.7 108 21 1913 1934,2017 2008 2006 top-third 1911,2019 18 41.1 40.1 1.0 94 34 1913 2018 1998 2008 top-third 1911,1941,1986,1990,1992,2014 24 45.9 44.6 1.3 103 25 1913 2018 2008 2007 top-third 1954 36 45.9 44.6 1.3 104 23 1914 2018 1999 2008 top-third 1999 48 46.1 44.6 1.5 107 19 1915 2018 2008 2007 top-third 60 46.1 44.5 1.6 108 17 1917 2019 2001 2008 top-third 2001