1991-2020 Degrees Fahrenheit 1 29.1 36.9 -7.8 28 101 1924 2012 1912 1911 bottom-third 2 23.0 33.1 -10.1 5 124 1899 2017 1912 1911 bottom-tenth 3 22.9 31.7 -8.8 5 124 1899 2015 1899 1912 bottom-tenth 4 23.0 30.8 -7.8 3 125 1899 1981,2015 1899 1912 bottom-tenth 5 25.8 31.8 -6.0 8 119 1899 2000 1912 1911 bottom-tenth 1937,1984 6 28.5 34.2 -5.7 6 121 1899 2017 1912 1911 bottom-tenth 1929 7 31.2 37.8 -6.6 4 123 1899 2017 1899 1912 bottom-tenth 8 35.3 41.5 -6.2 3 124 1899 2017 1899 1912 bottom-tenth 9 38.4 44.6 -6.2 2 125 1899 2017 1899 1912 bottom-tenth 10 40.2 46.5 -6.3 2 125 1899 2017 1899 1912 bottom-tenth 11 41.0 46.9 -5.9 2 125 1899 2017 1899 1912 bottom-tenth 12 40.8 46.6 -5.8 2 125 1899 2017 1899 1912 bottom-tenth 18 36.2 42.4 -6.2 1 124 1913 2017 1913 1912 lowest 24 41.3 46.6 -5.3 1 124 1913 2017 1913 1912 lowest 36 42.7 46.6 -3.9 10 113 1914 2017,2018 1906 1912 bottom-tenth 1906 48 42.8 46.5 -3.7 10 111 1899,1915 2018 1906 1912 bottom-tenth 1901,1930 60 42.7 46.5 -3.8 5 114 1917 2019 1900 1912 bottom-tenth 1918,1920,1921