1901-2000 Degrees Fahrenheit 1 77.13 77.81 -0.68 40 89 1965 1998 1903 1906 bottom-third 1966 2 80.35 81.48 -1.13 20 109 1965 1998 1903 1906 bottom-third 3 81.98 83.21 -1.23 15 114 1912 1936 1904 1906 bottom-third 4 81.03 82.74 -1.71 8 121 1915 1936 1903 1906 bottom-tenth 5 78.45 80.78 -2.33 2 127 1915 1936 1907 1906 bottom-tenth 6 75.30 77.90 -2.60 1 128 1907 2012 1907 1906 lowest 7 72.70 74.35 -1.65 7 122 1912 2012 1907 1906 bottom-tenth 8 69.49 70.66 -1.17 15 114 1912 2012 1905 1906 bottom-third 9 66.27 67.30 -1.03 19 110 1912 2012 1905 1906 bottom-third 10 64.07 64.86 -0.79 21 107 1912 2012 1905 1906 bottom-third 11 62.85 63.75 -0.90 18 110 1912 2012 1905 1906 bottom-third 12 63.03 64.01 -0.98 16 112 1912 2012 1904 1906 bottom-third 1924 18 67.87 68.64 -0.77 21 107 1912 2012 1906 1902 bottom-third 24 63.10 64.00 -0.90 10 117 1913 2017 1905 1906 bottom-tenth 36 63.11 63.98 -0.87 7 119 1917 2018 1906 1906 bottom-tenth 1906 48 63.09 63.97 -0.88 6 119 1915 2018 1906 1904 bottom-tenth 60 62.97 63.96 -0.99 1 123 1907 2016 1907 1906 lowest