Colorado, Average Temperature Rankings, July 2006 1901-2000 Degrees Fahrenheit 1 69.6 67.1 2.5 111 18 1906 2003 2004 2005 top-third 1936,1980 2 67.7 64.2 3.5 123 6 1915 2012 2005 2002 top-tenth 3 63.6 60.0 3.6 124 5 1915 2012,2018 2005 2002 top-tenth 4 59.5 55.7 3.8 125 4 1917 2012 2005 2002 top-tenth 5 54.6 51.3 3.3 125 4 1917 2012 2005 1934 top-tenth 6 50.2 47.3 2.9 122 7 1903 2012 2005 2000 top-tenth 7 47.3 43.9 3.4 123 6 1917 2012 2005 2000 top-tenth 8 44.6 41.6 3.0 121 7 1917 1934 2005 2000 top-tenth 9 43.8 40.7 3.1 121 7 1917 1934 2005 2000 top-tenth 10 44.3 41.3 3.0 122 6 1917 1934 2005 2000 top-tenth 1981 11 45.7 42.7 3.0 122 6 1917 1934 2005 2000 top-tenth 12 47.3 44.6 2.7 121 7 1917 1934 2005 2000 top-tenth 1981,2016 18 47.9 45.5 2.4 123 5 1913 2018 2005 2000 top-tenth 2012 24 46.7 44.6 2.1 117 10 1913 2018 2005 2001 top-tenth 2021 36 46.7 44.6 2.1 119 7 1914 2018 2005 2002 top-tenth 48 46.6 44.6 2.0 118 7 1915 2018 2005 2003 top-tenth 2015,2021 60 46.6 44.6 2.0 114 10 1917 2018 2005 2004 top-tenth