1901-2000 Degrees Fahrenheit 1 35.2 34.6 0.6 69 60 1951 2001 2002 2006 normal 1904,1908,1968 2 44.8 41.0 3.8 119 10 1925 1963 2006 2001 top-tenth 2011 3 50.5 46.8 3.7 121 8 1917 2016 2006 2005 top-tenth 1971 4 55.1 51.6 3.5 122 7 1917 2016 2006 2005 top-tenth 5 57.6 54.9 2.7 121 8 1917 2016 2006 2005 top-tenth 2010 6 59.2 56.3 2.9 124 5 1917 2016 2006 2005 top-tenth 7 59.0 55.9 3.1 124 5 1917 2016 2006 1998 top-tenth 8 56.9 54.2 2.7 122 7 1917 1998,2010,2016 2006 2005 top-tenth 2001 9 54.4 51.4 3.0 123 6 1917 2010 2006 1998 top-tenth 1921 10 50.5 48.1 2.4 115 14 1917 2012 2006 2005 top-third 2000 11 48.1 45.4 2.7 116 13 1917 2012 2005 2006 top-tenth 1999,2005 12 46.7 43.6 3.1 121 7 1917 2012 2006 1998 top-tenth 1987 18 50.3 47.8 2.5 119 9 1904 2012 2005 2006 top-tenth 24 46.5 43.6 2.9 121 6 1918 1999,2017 2006 1999 top-tenth 36 46.4 43.5 2.9 122 4 1918 2000,2012 2006 2000 top-tenth 2018,2022 48 46.0 43.5 2.5 121 4 1907,1918 2001 2006 2002 top-tenth 2000,2012,2018 60 45.6 43.5 2.1 116 8 1907 2002 2006 2003 top-tenth 2003,2010,2019