1901-2000 Degrees Fahrenheit 1 80.22 77.81 2.41 115 14 1965 1998 1946 1939 top-third 2 83.73 81.48 2.25 121 8 1965 1998 1946 1939 top-tenth 3 84.65 83.21 1.44 105 24 1912 1936 1946 1939 top-third 1938 4 83.20 82.74 0.46 76 53 1915 1936 1946 1943 normal 5 81.20 80.78 0.42 71 58 1915 1936 1946 1944 normal 6 78.17 77.90 0.27 67 62 1907 2012 1945 1946 normal 7 74.16 74.35 -0.19 49 80 1912 2012 1945 1946 normal 8 70.28 70.66 -0.38 44 85 1912 2012 1944 1946 normal 9 67.17 67.30 -0.13 53 76 1912 2012 1942 1946 normal 1928 10 65.14 64.86 0.28 70 58 1912 2012 1945 1946 normal 11 63.96 63.75 0.21 66 62 1912 2012 1945 1946 normal 12 64.05 64.01 0.04 57 71 1912 2012 1945 1946 normal 2001 18 68.79 68.64 0.15 67 61 1912 2012 1946 1946 normal 1946 24 64.40 64.00 0.40 83 44 1913 2017 1946 1940 normal 36 64.21 63.98 0.23 76 50 1917 2018 1946 1944 normal 1943,1948 48 64.15 63.97 0.18 73 52 1915 2018 1945 1946 normal 60 64.28 63.96 0.32 76 48 1907 2016 1946 1943 normal