s
Want some proof? How about this?
In 2012, Denver recorded its greatest 3-day February snowfall ever. (The city's heaviest snows have historically been in late March and early April.) Weather records in Denver go back to 1872.
http://capitalclimate.blogspot.com/2012/02/denver-breaks-all-time-february-1-day.html
I suppose. But I need more. What else you got?