1901-2000 Degrees Fahrenheit 1 29.19 29.99 -0.80 47 82 1965 2012 2014 2018 normal 2 25.58 26.41 -0.83 46 83 1899 2012 2014 2018 normal 1996 3 24.66 24.19 0.47 73 56 1912 2012 2014 2018 normal 4 25.06 23.80 1.26 90 38 1899 2016 2014 2018 top-third 1954 5 26.02 25.18 0.84 85 43 1899 2016 2014 2018 normal 6 28.86 27.89 0.97 93 35 1899 2016 2014 2018 top-third 1991 7 32.69 31.32 1.37 102 26 1917 2016 2014 2018 top-third 8 36.24 34.79 1.45 105 23 1917 2016 2014 2018 top-third 9 39.17 37.65 1.52 109 19 1917 2017 2014 2018 top-third 10 41.15 39.45 1.70 114 14 1917 2016 2018 2017 top-third 11 42.19 40.17 2.02 121 7 1917 2016 2018 2017 top-tenth 12 41.69 40.04 1.65 112 16 1917 2016 2015 2018 top-third 18 37.66 35.98 1.68 113 14 1918 2017 2015 2018 top-third 24 41.72 40.03 1.69 113 14 1918 2017 2015 2018 top-third 36 42.26 40.02 2.24 123 3 1918 2018 2016 2018 top-tenth 48 42.56 40.01 2.55 124 1 1918 2019 2018 2019 highest 60 42.35 40.00 2.35 122 2 1920 2020 2018 2019 top-tenth