1991-2020 Degrees Fahrenheit 1 35.8 39.4 -3.6 39 85 1948 2017 1919 1917 bottom-third 2 42.1 46.2 -4.1 17 107 1911,1919 2016 1919 1918 bottom-third 1906 3 48.3 53.1 -4.8 10 114 1912 2016 1919 1918 bottom-tenth 1930 4 53.7 58.8 -5.1 7 117 1912,1916 2016 1916 1919 bottom-tenth 5 57.8 62.8 -5.0 8 116 1912 2016,2020 1916 1919 bottom-tenth 6 59.3 64.5 -5.2 6 118 1912 2012,2016 1916 1919 bottom-tenth 1923,1925 7 59.3 64.1 -4.8 11 113 1912 2012 1916 1919 bottom-tenth 8 57.1 62.5 -5.4 4 120 1912 2012 1916 1919 bottom-tenth 9 54.7 60.6 -5.9 2 122 1912 2012 1912 1919 bottom-tenth 10 52.3 58.0 -5.7 5 119 1912,1917,1929 2012,2017 1917 1919 bottom-tenth 11 48.8 55.2 -6.4 3 121 1917 2012 1917 1919 bottom-tenth 1912 12 45.7 52.9 -7.2 2 121 1917 2012,2017 1917 1919 bottom-tenth 18 50.7 56.8 -6.1 3 120 1917 2017 1917 1919 bottom-tenth 1912 24 47.1 52.9 -5.8 3 119 1917 2018 1917 1919 bottom-tenth 36 47.8 52.9 -5.1 6 115 1917 2018 1919 1916 bottom-tenth 1915 48 47.2 52.8 -5.6 1 119 1920 2018 1920 1919 lowest 60 47.3 52.8 -5.5 1 118 1917,1920 2019,2021 1917 1919 lowest 1917