Wyoming, Average Temperature Rankings, September 2012 1901-2000 Degrees Fahrenheit 1 57.5 53.6 3.9 119 10 1965 1998 2011 2001 top-tenth 1948 2 62.1 58.5 3.6 125 4 1912 2022 2011 2001 top-tenth 3 64.7 60.7 4.0 126 3 1912 2022 2011 2001 top-tenth 4 64.2 60.0 4.2 127 2 1912,1915 2021 2011 2012 top-tenth 5 61.4 57.7 3.7 128 1 1915 2012 2011 2012 highest 6 58.6 54.5 4.1 128 1 1912 2012 2011 2012 highest 7 55.9 50.9 5.0 128 1 1912 2012 2011 2012 highest 8 51.7 47.3 4.4 128 1 1912 2012 2011 2012 highest 9 48.8 44.1 4.7 128 1 1917 2012 2011 2012 highest 10 46.0 41.8 4.2 127 1 1917 1934,2012 2011 1934 highest 1934 11 44.4 40.6 3.8 125 3 1917 1934 2011 2000 top-tenth 12 44.5 40.8 3.7 125 3 1917 1934 2011 2000 top-tenth 18 47.8 45.3 2.5 122 6 1917 1934 2011 2007 top-tenth 1981,2015 24 43.0 40.8 2.2 116 11 1913,1917 2016 2011 2007 top-tenth 36 42.2 40.7 1.5 108 18 1917 2017 2011 2008 top-third 1940,1990,1992,2004 48 42.1 40.7 1.4 105 20 1899 2018 2011 2009 top-third 2004,2021 60 41.8 40.7 1.1 98 26 1917 2016 2011 2010 top-third