1901-2000 Degrees Fahrenheit 1 68.6 72.0 -3.4 5 124 1912 2018 1912 1922 bottom-tenth 1965 2 72.1 74.9 -2.8 3 126 1912 2020 1912 1922 bottom-tenth 3 74.4 76.5 -2.1 3 126 1912 2020 1912 1922 bottom-tenth 4 73.5 76.0 -2.5 2 127 1912 2020 1912 1922 bottom-tenth 1941 5 72.1 73.8 -1.7 6 123 1965 2020 1915 1922 bottom-tenth 1908 6 69.3 71.0 -1.7 6 123 1912 2020 1920 1922 bottom-tenth 7 66.0 67.9 -1.9 6 123 1912,1965 2018 1920 1922 bottom-tenth 8 63.0 65.0 -2.0 4 125 1965 2018 1912 1922 bottom-tenth 1975 9 61.0 62.3 -1.3 14 115 1913 2018 1917 1922 bottom-third 10 59.3 60.2 -0.9 20 108 1913 2018 1920 1922 bottom-third 1899,1906,1941 11 58.0 59.2 -1.2 14 114 1912,1913 2018 1919 1922 bottom-third 1915,1929,1948 12 58.3 59.4 -1.1 15 113 1913 2018 1920 1922 bottom-third 1929,1948 18 62.5 63.2 -0.7 18 110 1913 2018 1921 1922 bottom-third 1915,1920,1968,1983 24 58.8 59.4 -0.6 19 108 1913 2018 1921 1922 bottom-third 1925,1930,1975 36 58.8 59.3 -0.5 19 107 1914 2018 1922 1918 bottom-third 1946 48 58.6 59.3 -0.7 6 119 1915 2018 1922 1921 bottom-tenth 1913,1916,1933 60 58.5 59.3 -0.8 5 119 1916,1917 2018 1921 1922 bottom-tenth 1924,1933