1901-2000 Degrees Fahrenheit 1 73.0 70.7 2.3 106 23 1907 2010 1999 1994 top-third 2002 2 68.9 66.5 2.4 115 14 1907 2010 1999 1991 top-third 1934,1957,2014 3 63.4 61.6 1.8 106 23 1907 2010 1999 1998 top-third 1896,1986,2022 4 59.7 56.9 2.8 117 12 1907 2010 1999 1991 top-tenth 5 55.6 52.4 3.2 119 10 1907 2012 1999 1998 top-tenth 1976,2004 6 51.9 49.2 2.7 113 16 1940 2012 1999 1998 top-third 7 50.3 47.4 2.9 118 10 1904 2012 1999 1998 top-tenth 2008,2022 8 50.4 47.2 3.2 120 8 1904 2012 1999 1998 top-tenth 2021 9 51.0 48.2 2.8 115 13 1904 2012 1999 1998 top-tenth 1921 10 52.8 50.1 2.7 115 13 1918 2012 1999 1998 top-tenth 1998 11 54.9 52.3 2.6 116 12 1904 2012 1999 1991 top-tenth 12 56.9 54.2 2.7 116 12 1904 2012 1999 1991 top-tenth 18 55.0 52.5 2.5 114 14 1905 2012 1998 1999 top-third 24 56.6 54.2 2.4 116 11 1905 2017 1999 2000 top-tenth 36 56.6 54.2 2.4 115 11 1906 2018,2019,2021 1999 2000 top-tenth 48 56.1 54.2 1.9 108 17 1907 2019,2020 1999 2000 top-third 60 55.7 54.2 1.5 103 21 1908 2020,2021 1999 2000 top-third 2001