1901-2000 Degrees Fahrenheit 1 35.2 34.1 1.1 71 59 1933 1995,2015 2001 2000 normal 1920,1965,2006 2 33.0 32.1 0.9 62 68 1949 2015 2001 2000 normal 1938,1977 3 32.2 31.7 0.5 61 68 1949 2015 2001 2000 normal 1974,1990 4 34.6 33.6 1.0 77 52 1949 2015 2001 2000 normal 1950 5 38.6 37.0 1.6 98 31 1949 2015 2001 2000 top-third 6 43.1 41.1 2.0 107 22 1949 2015 2001 2000 top-third 7 47.5 45.2 2.3 116 13 1949 2015 2001 2000 top-tenth 1940,1963 8 50.6 48.6 2.0 114 15 1949 2015 2001 2000 top-third 1938,1959,2006,2014 9 52.4 50.3 2.1 117 12 1949 2015 2001 2000 top-tenth 2017 10 53.4 50.8 2.6 124 5 1917 2015 2001 2002 top-tenth 11 52.7 50.4 2.3 124 5 1949 2015 2001 1935 top-tenth 1935,2003 12 51.9 49.5 2.4 123 6 1949 2015 2001 1935 top-tenth 2014,2016 18 48.1 46.7 1.4 108 20 1949 2016 2000 2001 top-third 1927,1995 24 51.2 49.5 1.7 114 14 1913 2016 2001 1941 top-third 2005,2009 36 51.1 49.5 1.6 114 13 1914 2016,2017 2001 1997 top-tenth 1997,2006,2014 48 50.6 49.5 1.1 105 21 1915,1949 2018 2001 1998 top-third 2011 60 50.7 49.4 1.3 107 18 1917,1949 2018 2001 1999 top-third 1998,1999,2014