The March 2003 blizzard left up to three feet of snow across Denver and up to seven feet in the foothills and ended a major drought along the Front Range.
I did a little digging into Denver's climate record and found a very interesting stat.
When Denver experiences a snow drought that starts in the fall that lasts 40 days or longer, there's a greater than 50% chance that the following March will bring a foot or more of snow.
Here's the data...
69 days without snow (11/26/2002 - 2/2/2003) the following March brought 35.2" of snow
68 days without snow (10/31/1905 - 1/6/1906) the following March brought 23.9" of snow
67 days without snow (9/9/1962 - 11/14/1962) the following March brought 18" of snow
55 days without snow (10/13/1901 - 12/6/1901) the following March brought 5" of snow
54 days without snow (10/30/1939 - 12/22/1939) the following March brought 20" of snow
54 days without snow (12/18/1933 - 2/9/1934) the following March brought 8.7" of snow but February turned snowy after starting dry (15.6")
50 days without snow (9/28/1927 - 11/16/1927) the following March brought 15.8" of snow
49 days without snow (9/5/2002 - 10/23/2002) the following March brought 35.2" of snow
47 days without snow (11/11/1935 - 12/27/1935) the following March brought 15.1" of snow)
46 days without snow (11/12/1885 - 12/27/1885) the following March brought 21.8" of snow)
44 days without snow (9/14/1993 - 10/27/1993) the following March brought 9.2" of snow but it was snowy during April (11.2")
44 days without snow (11/16/2010 - 12/29/2010) the following March brought 2.5" of snow
43 days without snow (12/4/1955 - 1/15/1956) the following March brought 13" of snow)
42 days without snow (9/22/1994 - 11/2/1994) the following March brought 5" of snow but it was snowy during April (17.2")
40 days without snow (10/8/1921 - 11/16/1921) the following March brought 4.9" of snow
40 days without snow (10/28/1884 - 12/16/1884) the following March brought 0.5" of snow