1901-2000 Degrees Fahrenheit 1 34.20 32.68 1.52 84 45 1983 2021 1992 1991 normal 2 36.71 37.19 -0.48 42 87 2000 2021 1992 1991 bottom-third 3 42.13 42.83 -0.70 35 94 1898 2021 1992 1991 bottom-third 4 47.42 48.34 -0.92 22 107 1976 2021 1989 1992 bottom-third 5 52.32 53.09 -0.77 23 106 1976 2021 1992 1991 bottom-third 6 55.62 56.51 -0.89 17 112 1976 2021 1992 1991 bottom-third 7 57.28 58.22 -0.94 13 116 1976 2021 1992 1991 bottom-tenth 8 57.73 58.47 -0.74 19 110 1976 2021 1992 1991 bottom-third 9 56.86 57.64 -0.78 19 110 1917 2021 1983 1992 bottom-third 10 55.35 56.03 -0.68 19 110 1917 2012 1983 1992 bottom-third 11 53.15 54.01 -0.86 11 118 1917 2012 1951 1992 bottom-tenth 12 51.26 52.02 -0.76 15 114 1917 2012 1979 1992 bottom-third 18 52.62 53.52 -0.90 8 120 1917 2012,2016 1924 1992 bottom-tenth 24 51.93 52.02 -0.09 54 74 1917 2017 1985 1992 normal 1910,1984 36 52.34 52.01 0.33 82 45 1917 2017 1986 1992 normal 48 52.63 52.00 0.63 89 37 1917 2018 1987 1992 top-third 60 52.47 51.99 0.48 83 42 1920 2019,2020 1987 1992 normal