1991-2020 Degrees Fahrenheit 1 43.6 43.8 -0.2 52 50 1983 2021 1932 1933 normal 2017 2 49.1 48.3 0.8 83 18 2000 2021 1932 1933 top-third 1954,2006 3 55.6 53.7 1.9 92 9 1976 2021 1932 1933 top-tenth 4 60.3 59.3 1.0 85 16 1976 2021 1932 1933 top-third 1963,1977,2003,2010 5 65.8 64.2 1.6 88 13 1976 2021 1932 1933 top-third 6 69.7 67.7 2.0 93 8 1976 1954 1933 1934 top-tenth 7 71.8 69.5 2.3 96 5 1976 2011 1933 1934 top-tenth 1939 8 71.9 69.8 2.1 96 5 1976 2011 1933 1934 top-tenth 9 71.0 69.0 2.0 95 6 1976 2011 1933 1934 top-tenth 1939 10 68.9 67.6 1.3 92 9 1976 2011 1933 1934 top-tenth 1954,2016 11 66.7 65.6 1.1 89 11 1989 2011 1933 1934 top-third 2006 12 64.8 63.7 1.1 90 10 1979 2011 1933 1933 top-tenth 1933,2017,2022 18 66.2 65.0 1.2 92 7 1973 2012 1933 1934 top-tenth 1939,2000,2006 24 64.8 63.7 1.1 93 6 1979 2012 1933 1934 top-tenth 36 63.8 63.7 0.1 76 22 1970 2012 1933 1934 top-third 1940 48 63.7 63.7 0.0 74 23 1979 2012,2013 1933 1934 top-third 1936,1939,1999,2021 60 63.4 63.6 -0.2 68 28 1979 2012 1933 1934 top-third 1935,1936,1937,1938,1939,2004