1925-2000 Degrees Fahrenheit 1 57.1 54.3 2.8 82 17 2008 1936 2003 2004 top-third 2 56.1 51.1 5.0 96 3 2012 1936 2003 2004 top-tenth 3 52.4 47.5 4.9 98 1 1972 2005 2004 2005 highest 4 48.4 44.0 4.4 98 1 1972 2005 2004 2005 highest 5 44.5 40.8 3.7 96 3 1972 2016 2004 2004 top-tenth 2004 6 41.1 38.2 2.9 92 7 1972 1926 2004 2004 top-tenth 1998,2004 7 39.6 36.6 3.0 92 6 1972 1926 2004 1998 top-tenth 8 38.9 35.9 3.0 92 6 1972 1926 2004 1998 top-tenth 9 39.1 36.5 2.6 92 6 1972 1926 2004 1998 top-tenth 10 40.1 37.8 2.3 90 8 1972 1926 2004 1998 top-tenth 11 42.1 39.4 2.7 92 6 1972 1926 2004 1998 top-tenth 12 43.5 40.8 2.7 94 4 1956,1972 1926 2004 1998 top-tenth 18 42.7 39.9 2.8 95 3 1972 1927,2016 2004 1927 top-tenth 24 43.1 40.8 2.3 94 3 1972 1927 2004 1927 top-tenth 36 42.7 40.8 1.9 91 5 1973 1928 2004 1929 top-tenth 48 42.1 40.8 1.3 87 8 1974 1929 2004 1995 top-tenth 1995,2016 60 42.0 40.7 1.3 87 7 1975 1930 2004 1998 top-tenth 1994,2017