1901-2000 Degrees Fahrenheit 1 53.71 54.11 -0.40 42 87 1925 1963 2013 2017 bottom-third 2 60.62 59.49 1.13 101 28 1976 2015 2013 2017 top-third 3 64.92 63.69 1.23 108 21 1976 1947 2017 2016 top-third 4 67.55 66.17 1.38 110 19 1976 2022 2017 2016 top-third 5 68.35 66.63 1.72 119 10 1912 2021 2017 2016 top-tenth 1998 6 67.88 65.56 2.32 128 1 1917 2018 2017 2018 highest 7 65.19 63.49 1.70 122 7 1907 1934,2012 2017 2016 top-tenth 8 62.38 60.74 1.64 119 10 1917 2012 2014 2017 top-tenth 9 59.39 57.75 1.64 117 12 1917 2012 2014 2017 top-tenth 10 56.67 54.99 1.68 117 12 1912,1917 2012 2014 2017 top-tenth 11 54.64 52.96 1.68 115 13 1917 2012 2014 2017 top-tenth 1921,2005 12 53.84 52.03 1.81 117 11 1917 2012 2015 2017 top-tenth 18 58.15 56.54 1.61 118 10 1917 2016 2015 2017 top-tenth 24 54.26 52.02 2.24 123 4 1913 2017 2015 2017 top-tenth 36 54.54 52.00 2.54 125 1 1917 2018 2017 2018 highest 48 54.36 51.99 2.37 124 1 1918 2018 2017 2018 highest 60 53.94 51.98 1.96 121 3 1920 2020 2017 2018 top-tenth