1901-2000 Degrees Fahrenheit 1 55.1 59.5 -4.4 4 125 1916 2020 1912 1911 bottom-tenth 2 60.5 64.0 -3.5 4 125 1916,1920 2020 1912 1911 bottom-tenth 3 63.9 67.3 -3.4 2 127 1900 2020 1900 1911 bottom-tenth 4 65.8 69.1 -3.3 1 128 1912 2020 1912 1911 lowest 5 66.1 68.9 -2.8 1 128 1912 2020 1912 1911 lowest 6 65.1 67.6 -2.5 2 127 1916 2020 1912 1911 bottom-tenth 7 62.8 65.6 -2.8 1 128 1912 2020 1912 1911 lowest 8 60.7 63.5 -2.8 1 128 1912 2014,2015 1912 1911 lowest 9 59.1 61.5 -2.4 1 128 1912 2015 1912 1911 lowest 10 57.6 59.6 -2.0 1 128 1911,1912 2015 1911 1911 lowest 1911 11 56.0 58.1 -2.1 1 127 1912 2015 1912 1911 lowest 12 55.3 57.4 -2.1 1 127 1912 2015 1912 1911 lowest 18 58.6 60.8 -2.2 1 127 1912 2015 1912 1911 lowest 24 55.6 57.4 -1.8 1 126 1912,1949 2015 1912 1911 lowest 1949 36 56.1 57.4 -1.3 2 124 1913 2016 1912 1911 bottom-tenth 1917 48 56.2 57.4 -1.2 1 124 1912,1913 2017 1912 1911 lowest 1913 60 56.3 57.4 -1.1 2 122 1913 2018 1912 1911 bottom-tenth 1920,1923