1991-2020 Degrees Fahrenheit 1 40.2 34.1 6.1 123 6 1951 1910 2011 2010 top-tenth 2 34.2 30.1 4.1 113 16 2019 2016 2011 2004 top-third 3 32.1 28.4 3.7 114 15 1969 1992 2011 1999 top-third 4 31.9 27.7 4.2 120 8 1969 1992 2011 1992 top-tenth 5 32.2 28.9 3.3 120 8 1969 1992 2011 2000 top-tenth 6 34.8 31.5 3.3 121 6 1969 2000 2011 2000 top-tenth 7 38.6 35.2 3.4 126 1 1969 2012,2016 2011 2012 highest 2016 8 42.4 39.1 3.3 126 1 1969 1992,2012 2011 1992 highest 1992 9 45.2 42.3 2.9 126 1 1969 1999,2012 2011 1999 highest 1999 10 46.3 44.0 2.3 123 4 1969 2016 2011 1961 top-tenth 1931,2022 11 46.6 44.7 1.9 121 6 1969 2016 2011 1999 top-tenth 1934 12 45.9 44.5 1.4 112 15 1969 1931,2016 2011 2007 top-third 1953 18 40.0 40.2 -0.2 89 36 1979 2016 2011 2008 top-third 1927,1987 24 43.8 44.5 -0.7 75 50 1979 2016 2011 2010 normal 1919,1995,2010 36 43.9 44.5 -0.6 82 41 1952 2017 2011 2010 top-third 1902,1936,1977,1982,1983 48 43.8 44.6 -0.8 79 42 1952 2016 2011 2011 normal 1937,1946,1947,2011,2021 60 44.2 44.6 -0.4 90 29 1952 2016 2000 2011 top-third 1964,1993