1901-2000 Degrees Fahrenheit 1 52.86 51.90 0.96 89 40 1918 2019 1946 1939 top-third 2 56.90 55.48 1.42 109 20 1974 2019 1946 1936 top-third 3 57.63 57.16 0.47 80 49 1924 2022 1946 1939 normal 1906 4 56.86 56.78 0.08 53 76 1903 2021 1946 1943 normal 1905,1930,1932 5 54.90 54.91 -0.01 52 77 1907,1924 2018 1946 1944 normal 6 52.23 52.20 0.03 53 76 1907 2018 1946 1943 normal 7 48.68 49.02 -0.34 33 96 1917 2012 1944 1946 bottom-third 1943 8 45.06 45.75 -0.69 24 105 1917 2012 1929 1946 bottom-third 9 42.41 42.86 -0.45 34 95 1917 2012 1942 1946 bottom-third 1915,1970 10 40.73 40.84 -0.11 48 80 1917 2016 1945 1946 normal 11 39.87 39.92 -0.05 53 75 1917 2016 1944 1946 normal 1940 12 39.98 40.04 -0.06 52 76 1917 2016 1944 1946 normal 18 44.03 44.09 -0.06 53 75 1917 2016 1946 1942 normal 24 40.07 40.04 0.03 61 66 1918 2017 1945 1946 normal 36 40.06 40.02 0.04 62 64 1918 2017,2018 1946 1943 normal 48 39.95 40.01 -0.06 51 74 1918 2018 1946 1945 normal 1981 60 39.95 40.00 -0.05 55 69 1920 2019,2020 1931 1946 normal