1901-2000 Degrees Fahrenheit 1 33.5 30.3 3.2 100 30 1903 1995 2004 2000 top-third 1945,1983 2 33.1 27.9 5.2 124 6 1949 2015 2004 2003 top-tenth 2003,2014 3 32.1 27.6 4.5 122 7 1949 2015 2004 2000 top-tenth 2018 4 33.0 29.7 3.3 118 11 1949 2015 2004 2000 top-tenth 5 36.2 33.5 2.7 115 14 1949 1934,2015 2004 2000 top-third 2009 6 40.2 38.0 2.2 110 19 1949 2015 2004 2000 top-third 2016 7 44.2 42.5 1.7 101 28 1917 1934 2004 2003 top-third 1961,1963,2002 8 47.7 46.1 1.6 100 29 1917 1934 2001 2004 top-third 1951,1953 9 49.8 48.1 1.7 105 24 1917 1934 2001 2004 top-third 1941 10 50.5 48.8 1.7 107 22 1917 2015 2001 2004 top-third 1961 11 50.3 48.5 1.8 112 17 1913 2015,2022 2004 2003 top-third 1911,1959,2013,2016 12 49.9 47.5 2.4 121 8 1913 2015,2018 2004 1995 top-tenth 18 46.2 44.4 1.8 111 17 1913 1935 2004 2004 top-third 2004,2023 24 49.6 47.5 2.1 118 10 1899,1913,1914 2018 2004 2004 top-tenth 1941,2002,2004 36 49.7 47.5 2.2 119 8 1899,1914 2017,2018 2004 2005 top-tenth 48 49.7 47.5 2.2 119 7 1899 2018 2004 2005 top-tenth 2022 60 49.6 47.5 2.1 118 7 1900,1917 2018,2019 2004 2005 top-tenth 2016