1901-2000 Degrees Fahrenheit 1 34.9 38.3 -3.4 11 119 1917 1934 1922 1934 bottom-tenth 1913 2 34.6 36.2 -1.6 33 97 1917 2015 1933 1934 bottom-third 1976 3 33.1 34.2 -1.1 39 91 1922 2015 1933 1934 bottom-third 4 33.1 33.6 -0.5 44 85 1949 1934 1933 1934 normal 1930,1948,1964 5 34.7 34.4 0.3 60 69 1917 1934 1933 1934 normal 1907,1972,1975,1991,2017 6 37.3 36.7 0.6 76 53 1917 2015 1933 1934 normal 1902 7 40.1 39.6 0.5 72 57 1917 2015 1933 1934 normal 1965,1974,1976 8 43.3 42.7 0.6 75 54 1917 2015 1933 1934 normal 2006,2011 9 45.7 45.1 0.6 77 52 1917 2015 1933 1934 normal 1943,1958 10 46.9 46.3 0.6 77 52 1917 2015 1933 1934 normal 1905,2001,2006 11 47.6 46.7 0.9 89 40 1917 2015 1933 1934 top-third 1987,1999,2017 12 47.9 46.5 1.4 107 22 1917 2015 1933 1934 top-third 1967,2013 18 45.9 43.2 2.7 125 3 1917 2016 1934 1935 top-tenth 2022 24 48.3 46.5 1.8 119 9 1913,1917 2016 1934 1935 top-tenth 36 47.3 46.5 0.8 85 42 1913 2016 1934 1935 top-third 1959,1969 48 47.0 46.4 0.6 80 46 1913 2016,2018 1934 1935 normal 1937,1960,2012 60 46.8 46.4 0.4 73 52 1917 2018 1934 1935 normal 1939,1945,1967