1991-2020 Degrees Fahrenheit 1 38.6 46.7 -8.1 2 127 1943 2017 1926 1925 bottom-tenth 2 32.2 40.5 -8.3 1 128 1926 2012 1926 1925 lowest 3 27.5 35.5 -8.0 5 124 1904 2012 1916 1925 bottom-tenth 4 26.2 32.4 -6.2 12 117 1904 2012 1923 1925 bottom-tenth 1907 5 26.3 31.7 -5.4 13 114 1904 2012 1923 1925 bottom-tenth 1970 6 28.0 33.0 -5.0 14 111 1904 2012 1923 1925 bottom-third 1944 7 29.9 35.4 -5.5 7 118 1918 2012 1920 1925 bottom-tenth 1912 8 33.6 38.8 -5.2 7 118 1918 2012 1920 1925 bottom-tenth 1912 9 37.3 42.2 -4.9 6 119 1904 2012 1920 1925 bottom-tenth 10 40.3 45.1 -4.8 5 120 1904 2012 1920 1925 bottom-tenth 1934 11 42.8 47.1 -4.3 5 120 1904 2012 1920 1925 bottom-tenth 1912,1934 12 43.5 48.0 -4.5 4 121 1918 2012 1920 1925 bottom-tenth 1920 18 39.1 43.0 -3.9 11 110 1905 2017 1924 1925 bottom-tenth 1924 24 44.1 48.0 -3.9 6 115 1905 2017 1919 1925 bottom-tenth 1912,1919 36 44.4 48.0 -3.6 8 109 1905,1906 2013 1920 1925 bottom-tenth 48 44.4 47.9 -3.5 6 108 1906 2019,2022 1920 1925 bottom-tenth 60 44.7 47.9 -3.2 7 104 1920 2020 1921 1925 bottom-tenth 1912,1921,1928