1901-2000 Degrees Fahrenheit 1 54.4 52.6 1.8 86 43 1917 2015 1932 1922 top-third 2 47.2 46.7 0.5 70 59 1917 2010 1932 1931 normal 3 40.2 40.7 -0.5 45 84 1926 2010 1932 1931 normal 1927 4 35.9 35.2 0.7 76 53 1926 2012 1932 1931 normal 1915,2001 5 34.0 31.6 2.4 109 20 1907,1923 2012 1932 1921 top-third 1903 6 32.6 29.9 2.7 108 20 1907 2012 1932 1921 top-third 7 32.5 30.5 2.0 102 26 1905 2012 1931 1932 top-third 8 34.4 32.4 2.0 103 25 1905 2012 1931 1932 top-third 1913 9 37.0 35.1 1.9 105 23 1905 2012 1931 1932 top-third 1995,2007 10 39.8 38.0 1.8 104 24 1905 2012 1931 1932 top-third 2008 11 42.0 40.6 1.4 100 28 1905 2012 1931 1932 top-third 2004 12 43.6 42.4 1.2 99 29 1905 2012 1931 1932 top-third 1985,2019 18 39.6 38.2 1.4 102 25 1905 2013,2017 1931 1932 top-third 1974,2003,2019 24 43.9 42.3 1.6 106 21 1905 2013 1932 1933 top-third 1991,2003 36 43.7 42.3 1.4 100 26 1906 2018 1932 1933 top-third 48 43.3 42.3 1.0 90 35 1907 2013 1932 1933 top-third 60 43.2 42.3 0.9 93 31 1908 2013,2020 1932 1933 top-third 1956,1957,1987,1991,1995,1998