1901-2000 Degrees Fahrenheit 1 58.1 56.0 2.1 97 33 1907 1934 1999 1998 top-third 1962,1991 2 51.6 50.4 1.2 91 39 1907 1934 1999 1998 top-third 1930 3 47.5 43.8 3.7 118 12 1899 2012 1999 1987 top-tenth 4 43.1 37.9 5.2 124 6 1899 2012 1999 1992 top-tenth 1991 5 38.7 33.3 5.4 122 8 1899 2012 1999 1992 top-tenth 6 37.1 31.1 6.0 125 4 1917 2012 1999 1992 top-tenth 7 37.9 31.1 6.8 127 2 1899 2012 1999 2000 top-tenth 8 39.1 33.2 5.9 127 2 1899 2012 1999 2000 top-tenth 9 41.1 36.2 4.9 126 3 1899 2012 1999 2000 top-tenth 10 44.1 39.7 4.4 126 3 1899 2012 1999 2000 top-tenth 11 46.8 42.6 4.2 127 2 1899 2012 1999 2000 top-tenth 12 48.3 44.6 3.7 124 5 1899 2012 1999 1934 top-tenth 18 44.1 40.0 4.1 127 1 1979 2000 1999 2000 highest 24 48.0 44.6 3.4 127 1 1917 2000,2017 1999 2000 highest 2017 36 47.7 44.5 3.2 126 1 1918 2000 1999 2000 highest 48 46.3 44.5 1.8 114 12 1899 2007 1999 1992 top-tenth 1942,1991,2003,2017 60 45.7 44.5 1.2 102 23 1920 2006,2007 1999 1993 top-third 2010,2020