1991-2020 Degrees Fahrenheit 1 62.7 68.8 -6.1 5 122 1909 2015 1930 1954 bottom-tenth 1930 2 61.4 65.5 -4.1 8 119 1954 2015 1954 1952 bottom-tenth 3 58.7 62.8 -4.1 6 120 1916,1930 2015 1954 1953 bottom-tenth 4 55.4 59.8 -4.4 1 125 1899,1955 2015 1899 1954 lowest 1899 5 52.6 57.2 -4.6 1 123 1955 2015 1955 1954 lowest 6 50.5 54.9 -4.4 1 122 1955 2015 1955 1954 lowest 7 48.9 53.0 -4.1 1 121 1955 2015 1955 1954 lowest 8 47.8 51.5 -3.7 2 119 1917 2015 1917 1954 bottom-tenth 1909 9 48.0 50.9 -2.9 6 115 1917 2015 1949 1954 bottom-tenth 1903,1929,1933,1949 10 48.3 51.2 -2.9 6 115 1917 2015 1950 1954 bottom-tenth 1913,1923,1949 11 49.3 52.3 -3.0 5 115 1917 2015 1917 1954 bottom-tenth 1903,1913 12 50.5 53.7 -3.2 3 115 1917 2015 1917 1954 bottom-tenth 1899 18 50.9 54.1 -3.2 2 114 1917 2015,2016 1917 1954 bottom-tenth 24 51.3 53.7 -2.4 9 102 1917 2016 1950 1954 bottom-tenth 1930 36 51.7 53.7 -2.0 12 93 1913,1917 2016 1951 1954 bottom-third 1919 48 51.7 53.6 -1.9 8 92 1913 2018 1952 1954 bottom-tenth 1949,1956 60 52.0 53.6 -1.6 9 86 1950 2019 1954 1954 bottom-tenth 1954