1901-2000 Degrees Fahrenheit 1 68.04 68.49 -0.45 39 90 1907 2021 1895 1901 bottom-third 1923 2 65.02 64.35 0.67 80 49 1907 2018 1901 1900 normal 3 60.29 59.91 0.38 64 65 1907 1934 1901 1900 normal 1969 4 55.62 55.31 0.31 76 53 1917 2012 1901 1900 normal 1930 5 50.78 51.01 -0.23 52 77 1917 2012 1901 1900 normal 6 47.33 47.53 -0.20 48 81 1917 2012 1901 1900 normal 7 45.07 45.42 -0.35 41 87 1917 2012 1899 1901 bottom-third 8 44.64 44.96 -0.32 38 90 1917 2012 1899 1901 bottom-third 1933 9 45.84 45.98 -0.14 49 79 1917 2012 1899 1901 normal 10 47.58 47.86 -0.28 41 87 1917 2016 1899 1901 bottom-third 1930 11 49.91 50.07 -0.16 46 82 1917 2012 1899 1901 normal 12 52.11 52.03 0.08 64 64 1917 2012 1901 1900 normal 18 50.36 50.52 -0.16 52 76 1917 2017 1900 1901 normal 24 52.08 52.02 0.06 64 63 1913 2017 1900 1901 normal 36 52.22 52.00 0.22 74 52 1917 2018 1901 1902 normal 48 51.71 51.99 -0.28 30 95 1918 2018 1901 1902 bottom-third 1909 60 51.78 51.98 -0.20 34 90 1920 2020 1901 1902 bottom-third