1901-2000 Degrees Fahrenheit 1 41.4 45.1 -3.7 9 120 1955 1934 1917 1916 bottom-tenth 1982 2 36.9 41.8 -4.9 2 127 1955 1934 1917 1916 bottom-tenth 3 34.6 38.9 -4.3 3 126 1955 1934 1917 1916 bottom-tenth 1936 4 32.5 36.3 -3.8 6 123 1950 1934 1917 1916 bottom-tenth 5 31.0 35.2 -4.2 5 123 1950 1934 1917 1916 bottom-tenth 6 31.2 35.4 -4.2 1 127 1917,1949 1934 1917 1916 lowest 1949 7 33.1 37.1 -4.0 1 127 1917 1934 1917 1916 lowest 8 36.0 39.6 -3.6 1 127 1917 2015 1917 1916 lowest 9 39.0 42.2 -3.2 2 126 1949 2015 1917 1916 bottom-tenth 10 41.1 44.4 -3.3 1 127 1917,1949 2015 1917 1916 lowest 1949 11 42.5 45.6 -3.1 1 127 1917 2016 1917 1916 lowest 12 42.9 46.1 -3.2 1 127 1917 2016 1917 1916 lowest 18 39.4 42.6 -3.2 1 126 1917 2016 1917 1916 lowest 24 43.9 46.1 -2.2 1 126 1917,1950 2016 1917 1916 lowest 1950 36 44.8 46.1 -1.3 6 120 1957 2016 1917 1916 bottom-tenth 48 45.3 46.1 -0.8 12 113 1952,1957 2016,2018 1913 1916 bottom-tenth 1918 60 45.1 46.1 -1.0 3 121 1913,1952 2018,2019 1913 1916 bottom-tenth 1920,1951