1901-2000 Degrees Fahrenheit 1 52.0 54.0 -2.0 23 106 1944,1976 2022 1948 1946 bottom-third 2 53.4 55.0 -1.6 18 111 1944 2022 1948 1946 bottom-third 1924 3 51.6 52.8 -1.2 20 109 1944 2021 1948 1946 bottom-third 1908,1911,1950,1978 4 49.2 49.8 -0.6 36 93 1907 2021 1948 1946 bottom-third 1902,1935,1951,1983 5 46.3 46.4 -0.1 56 73 1944 2021 1948 1946 normal 1895,1927,1951,1970 6 43.1 43.3 -0.2 52 77 1944 2017 1948 1946 normal 1903 7 38.8 40.4 -1.6 13 116 1933,1944 2017 1948 1947 bottom-tenth 1912,1942 8 34.2 37.7 -3.5 2 127 1917 2015 1917 1948 bottom-tenth 9 32.1 35.7 -3.6 3 125 1917,1933 2015 1933 1948 bottom-tenth 10 31.2 34.8 -3.6 2 126 1917 2015 1917 1948 bottom-tenth 11 31.6 35.0 -3.4 2 126 1917 2015 1917 1948 bottom-tenth 12 32.7 35.9 -3.2 2 126 1917 2015 1917 1948 bottom-tenth 18 35.4 38.3 -2.9 1 127 1949 2015 1949 1948 lowest 24 33.4 35.9 -2.5 1 126 1949 2016 1949 1948 lowest 36 34.0 35.8 -1.8 2 124 1950 2017 1949 1948 bottom-tenth 48 34.4 35.8 -1.4 2 123 1950 2018 1913 1948 bottom-tenth 1913 60 34.5 35.8 -1.3 1 123 1917,1949,1950 2018 1917 1948 lowest 1917,1950