1901-2000 Degrees Fahrenheit 1 46.65 47.44 -0.79 29 100 1917 2018 1907 1906 bottom-third 2 43.22 43.03 0.19 56 73 1907 2012 1907 1906 normal 3 39.49 38.68 0.81 92 37 1917 2012 1907 1905 top-third 1927 4 35.24 34.72 0.52 83 46 1917 2012 1907 1908 normal 5 32.51 31.72 0.79 89 40 1917 2012 1907 1908 top-third 6 31.22 30.21 1.01 94 34 1917 2012 1907 1908 top-third 7 31.01 30.28 0.73 87 41 1917 2012 1907 1908 top-third 8 32.29 31.68 0.61 86 42 1917 2016,2017 1907 1900 top-third 9 34.40 33.92 0.48 86 42 1917 2016 1907 1900 top-third 1900 10 36.76 36.44 0.32 77 51 1917 2017 1907 1901 normal 1919,1985 11 38.85 38.63 0.22 73 55 1917 2017 1907 1901 normal 1953,1972 12 40.05 40.04 0.01 55 73 1917 2017 1906 1907 normal 1931,1982 18 36.92 36.76 0.16 69 58 1918 2017 1907 1901 normal 24 40.09 40.03 0.06 60 67 1918 2017 1907 1902 normal 36 39.98 40.02 -0.04 54 72 1918 2017 1907 1903 normal 1957 48 39.78 40.01 -0.23 36 89 1918 2018 1907 1903 bottom-third 1901 60 39.50 40.00 -0.50 11 113 1920 2020 1907 1905 bottom-tenth