Here is the list of the last measurable snows in Denver in the past 10 years:

April 24, 2018
April 29, 2017
April 30, 2016
May 10, 2015
May 12, 2014
May 2, 2013
April 3, 2012
May 11, 2011
May 12, 2010
April 27, 2009