1901-2000 Degrees Fahrenheit 1 38.23 38.61 -0.38 46 84 1920 1981 1997 2006 normal 1899 2 36.76 34.30 2.46 119 11 1950 2012 2005 2006 top-tenth 3 31.82 30.47 1.35 99 31 1899 2012 2003 2006 top-third 4 29.20 27.79 1.41 100 30 1912 2012 2003 2006 top-third 5 28.56 26.76 1.80 109 20 1899 2012 2003 2006 top-third 6 29.24 27.42 1.82 111 18 1899 2017 2003 2006 top-third 7 30.85 29.42 1.43 107 22 1899 2017 2003 2006 top-third 8 33.33 32.23 1.10 98 31 1917 2016 2001 2006 top-third 9 36.37 35.21 1.16 102 27 1917 2017 2003 2006 top-third 1974 10 39.05 37.74 1.31 106 23 1917 2017 2003 2006 top-third 11 40.72 39.37 1.35 108 21 1917 2017 2003 2006 top-third 12 41.42 40.04 1.38 110 19 1917 2016 2003 2006 top-third 18 37.64 35.83 1.81 116 12 1918 2017 2004 2006 top-tenth 24 41.72 40.03 1.69 114 14 1918 2017 2004 2006 top-third 36 41.74 40.02 1.72 116 11 1918 2017 2005 2006 top-tenth 48 41.73 40.01 1.72 118 8 1918 2019 2006 2007 top-tenth 60 41.61 40.00 1.61 114 11 1920 2020 2005 2006 top-tenth