1901-2000 Degrees Fahrenheit 1 53.4 47.8 5.6 122 7 1907 1915 2005 2001 top-tenth 2001 2 45.7 41.9 3.8 110 19 1926 2012 2005 2004 top-third 1929,1942,1973,1987 3 39.7 36.2 3.5 108 21 1904 2012 2003 2005 top-third 1927,1973 4 38.4 32.5 5.9 124 5 1912 2012 2005 1998 top-tenth 5 35.1 31.1 4.0 118 10 1904 2012 2005 2002 top-tenth 1983 6 36.1 32.3 3.8 119 9 1904 2012 2005 2002 top-tenth 1999 7 38.7 35.1 3.6 119 9 1904 2012 2005 2002 top-tenth 1999 8 42.5 38.7 3.8 121 7 1904 2012 2005 2002 top-tenth 9 45.9 42.3 3.6 121 7 1904 2012,2017 2005 2002 top-tenth 10 48.8 45.4 3.4 122 6 1904 2012 2005 2002 top-tenth 11 51.1 47.5 3.6 125 3 1904 2012 2005 2006 top-tenth 12 51.6 48.5 3.1 124 4 1904,1918 2012 2005 1999 top-tenth 1999 18 46.3 43.1 3.2 123 4 1905,1918 2017 2005 2000 top-tenth 2000 24 50.8 48.5 2.3 122 5 1905 2017 2005 2000 top-tenth 1999 36 50.4 48.4 2.0 119 7 1918 2000 2005 2002 top-tenth 2007,2012 48 50.1 48.4 1.7 118 7 1980 2002 2005 2003 top-tenth 2000,2003,2020,2022 60 50.3 48.4 1.9 120 4 1908,1920 2002 2005 2003 top-tenth