1901-2000 Degrees Fahrenheit 1 41.1 39.9 1.2 75 55 1926 1921 1950 1953 normal 2 34.2 33.6 0.6 71 59 1926 1945 1950 1953 normal 1988 3 30.8 27.9 2.9 103 27 1926 2012 1952 1953 top-third 1898,1999 4 26.1 24.7 1.4 85 45 1923 2012 1950 1953 normal 1942,2009 5 26.5 23.8 2.7 103 26 1918 2012 1952 1953 top-third 6 28.4 25.4 3.0 108 21 1918 2012 1952 1953 top-third 2020 7 31.0 28.2 2.8 105 24 1918 2012 1952 1953 top-third 1932 8 34.2 31.7 2.5 107 22 1918 2012 1952 1953 top-third 1913 9 37.4 35.2 2.2 106 23 1905 2012 1952 1953 top-third 10 40.3 38.3 2.0 107 22 1905 2012 1952 1953 top-third 1998 11 42.3 40.4 1.9 108 21 1905 2012 1952 1953 top-third 1998 12 43.4 41.4 2.0 112 17 1918 2012 1953 1949 top-third 1921 18 38.7 36.0 2.7 117 11 1905 2013,2017 1953 1954 top-tenth 2006,2007 24 43.3 41.3 2.0 114 14 1905 2013 1953 1954 top-third 2002,2008 36 42.9 41.3 1.6 106 21 1906 2023 1953 1951 top-third 1933,2020 48 42.9 41.3 1.6 104 22 1907 2013,2023 1953 1954 top-third 60 42.8 41.3 1.5 102 23 1908 2023 1952 1953 top-third 1999,2004