1991-2020 Degrees Fahrenheit 1 35.1 40.9 -5.8 12 112 1951 2001 1951 1954 bottom-tenth 2 44.7 47.0 -2.3 31 91 1925,1976 1963 1952 1954 bottom-third 1906,1945,1969,1986 3 51.4 53.0 -1.6 40 82 1976 1931,2016 1952 1954 bottom-third 4 57.6 57.7 -0.1 75 47 1976 2016 1954 1953 normal 1930,1978 5 61.8 60.9 0.9 98 24 1976 2016 1954 1953 top-third 1899,2022 6 62.7 62.4 0.3 84 38 1976 2016 1954 1953 top-third 1987 7 62.4 62.1 0.3 86 36 1917 1934,2016 1954 1953 top-third 1901 8 61.4 60.5 0.9 102 19 1907 2016 1954 1941 top-third 1987,2017 9 58.6 58.0 0.6 98 23 1917 2016 1954 1941 top-third 2001,2020 10 55.4 55.0 0.4 96 24 1917 2016 1954 1953 top-third 1927,2011 11 52.5 52.3 0.2 90 26 1904 2012 1954 1953 top-third 1898,1927,2022 12 50.6 50.5 0.1 90 24 1904 2016 1954 1954 top-third 1954 18 54.5 54.5 0.0 82 30 1904 2016 1952 1954 top-third 1941,1985,2019 24 50.6 50.5 0.1 82 24 1904,1979 2017 1953 1954 top-third 2008 36 50.9 50.5 0.4 86 12 1904 2017,2018 1954 1934 top-third 1934,1999,2020 48 50.5 50.5 0.0 77 16 1904,1979 2018,2019 1954 1934 top-third 1956,2005,2016 60 49.9 50.5 -0.6 51 37 1982 2020 1954 1934 normal 1988