1901-2000 Degrees Fahrenheit 1 77.43 77.81 -0.38 47 82 1965 1998 1950 1948 normal 1946 2 81.15 81.48 -0.33 46 83 1965 1998 1950 1949 normal 1914,1929 3 83.07 83.21 -0.14 54 75 1912 1936 1950 1949 normal 1929 4 82.13 82.74 -0.61 31 98 1915 1936 1950 1949 bottom-third 5 80.51 80.78 -0.27 48 81 1915 1936 1950 1949 normal 6 77.43 77.90 -0.47 36 93 1907 2012 1950 1949 bottom-third 7 73.53 74.35 -0.82 20 109 1912 2012 1950 1949 bottom-third 8 70.10 70.66 -0.56 32 97 1912 2012 1950 1949 bottom-third 1973 9 66.88 67.30 -0.42 39 90 1912 2012 1950 1948 bottom-third 10 64.57 64.86 -0.29 35 93 1912 2012 1950 1948 bottom-third 1918,1937,1970 11 63.48 63.75 -0.27 41 87 1912 2012 1949 1950 bottom-third 12 64.09 64.01 0.08 61 67 1912 2012 1950 1946 normal 18 68.13 68.64 -0.51 28 100 1912 2012 1929 1950 bottom-third 24 63.91 64.00 -0.09 52 75 1913 2017 1950 1948 normal 1945 36 63.82 63.98 -0.16 43 83 1917 2018 1950 1949 normal 1994 48 63.82 63.97 -0.15 44 81 1915 2018 1950 1950 normal 1926,1950,1962 60 63.87 63.96 -0.09 48 76 1907 2016 1930 1950 normal