1901-2000 Degrees Fahrenheit 1 73.2 75.1 -1.9 7 122 1928,1940 2019 1928 1930 bottom-tenth 1903,1925 2 69.8 72.2 -2.4 4 125 1901,1940 2015 1928 1930 bottom-tenth 1903 3 65.7 69.5 -3.8 1 128 1931 2015 1931 1930 lowest 4 63.5 67.0 -3.5 1 128 1931 2012,2020 1931 1930 lowest 5 61.6 65.1 -3.5 3 126 1940 2020 1931 1930 bottom-tenth 6 60.3 64.1 -3.8 1 127 1931,1940 2017 1931 1930 lowest 1940 7 60.5 64.1 -3.6 1 127 1931,1940 2017 1931 1930 lowest 1940 8 61.6 65.1 -3.5 1 127 1931 2020 1931 1930 lowest 9 63.7 66.7 -3.0 1 127 1931 2020 1931 1930 lowest 10 65.3 68.1 -2.8 1 127 1931 2020 1931 1930 lowest 11 66.8 69.3 -2.5 1 127 1931 2020 1931 1930 lowest 12 67.7 70.1 -2.4 1 127 1931 2020 1931 1930 lowest 18 66.4 68.1 -1.7 3 124 1941 2020 1902 1930 bottom-tenth 24 68.8 70.1 -1.3 4 123 1941 2017,2020 1915 1930 bottom-tenth 1902,1969 36 69.4 70.1 -0.7 13 113 1942,1970 2021 1920 1930 bottom-tenth 1903,1915,1920,1968 48 69.5 70.1 -0.6 14 111 1971 2020 1921 1930 bottom-third 1903,1919,1921,1978 60 69.8 70.1 -0.3 28 96 1918,1970 2020 1921 1930 bottom-third 1908,1916,1962,1966,1973