1991-2020 Degrees Fahrenheit 1 30.4 35.2 -4.8 32 98 1916 2012 1904 1903 bottom-third 1978 2 22.7 30.8 -8.1 10 120 1934 2012 1904 1903 bottom-tenth 3 21.1 28.5 -7.4 10 120 1904 2012 1904 1903 bottom-tenth 4 20.3 28.9 -8.6 3 125 1904 2012 1904 1903 bottom-tenth 5 22.7 31.1 -8.4 3 123 1904 2012,2016 1904 1903 bottom-tenth 6 26.6 34.4 -7.8 2 124 1918 2012 1905 1904 bottom-tenth 7 31.1 38.5 -7.4 2 124 1918 2012 1905 1904 bottom-tenth 8 35.6 42.5 -6.9 2 124 1904 2012,2016 1904 1903 bottom-tenth 1918 9 39.4 45.8 -6.4 2 124 1904 2012 1904 1903 bottom-tenth 10 42.1 48.0 -5.9 3 123 1904 2012 1904 1903 bottom-tenth 11 43.7 49.0 -5.3 3 123 1918 2012 1904 1903 bottom-tenth 12 43.5 48.9 -5.4 3 123 1918 2012 1904 1903 bottom-tenth 18 37.9 44.0 -6.1 1 121 1905 2013,2023 1905 1904 lowest 24 43.3 48.8 -5.5 1 121 1905 2013 1905 1904 lowest 36 44.2 48.8 -4.6 1 117 1905,1906 2023 1905 1904 lowest 1906 48 44.9 48.8 -3.9 2 113 1906 2023 1905 1904 bottom-tenth 1918 60 45.3 48.8 -3.5 5 107 1906,1918,1920,1927 2023 1905 1904 bottom-tenth 1928