Contiguous U.S., Average Temperature Rankings, March 2012 1901-2000 Degrees Fahrenheit 1 50.41 41.50 8.91 128 1 1965 2012 2011 2012 highest 2 43.96 37.66 6.30 128 1 1899 2012 2011 2012 highest 3 41.35 35.15 6.20 128 1 1912 2012 2011 2012 highest 4 39.86 34.55 5.31 127 1 1899 2012 2011 2012 highest 5 40.64 35.98 4.66 126 2 1899 2000 2011 2000 top-tenth 6 43.05 39.01 4.04 124 4 1899 2016 2011 2000 top-tenth 7 46.34 42.70 3.64 125 3 1899 2016 2011 2012 top-tenth 8 49.92 46.37 3.55 125 3 1899 2016 2011 2012 top-tenth 9 52.83 49.40 3.43 127 1 1899 2012 2011 2012 highest 10 54.53 51.31 3.22 125 3 1899 2017 2011 2012 top-tenth 11 54.95 52.12 2.83 125 3 1899 2017 2011 2012 top-tenth 12 54.70 52.03 2.67 125 3 1899 2017 2011 2012 top-tenth 18 49.62 47.67 1.95 116 11 1913 2017 2011 2007 top-tenth 24 53.83 52.02 1.81 119 8 1918 2017 2011 2007 top-tenth 36 53.22 52.00 1.22 107 19 1918 2018 2011 2009 top-third 48 53.07 51.99 1.08 102 23 1918 2018 2011 2009 top-third 60 53.11 51.98 1.13 103 21 1920 2020 2011 2010 top-third