The perfect combination of temperature, moisture and upper air flow has once again blanketed the Colorado front range with three days of heavy wet snow, wind and blizzard conditions in the mountains. Deep snow put a damper on Mother's Day activities from Fort Collins to Colorado Springs with the foothills just west of Fort Collins and Boulder receiving as much as 29 inches of the heavy white stuff according to the NOAA web site.
Winter weather in May in the high country is not rare though. In fact springtime in the mountains brings the heaviest snowfall of the year with March and April being the state's snowiest months. According to NOAA climatology records, the latest May snowfall in Boulder, Colorado was recorded on May 25, 1950 with 8.7 inches. Snow is possible in some places in the high country in every month of the year. Snowfall was actually reported by KDVR on Pikes Peak near Colorado Springs on July 25, 2012 by a video shot from the Cog Railway.
Many factors contribute to the wild weather experienced in Colorado including the high peaks of the Rocky Mountains, arctic cold fronts and upper atmosphere winds from a jet stream that often swoops down from Canada bringing cold temperatures and moisture in from the Pacific Ocean. The massive 14,000 foot peaks dotting Colorado often create their own weather causing tremendous changes in air flow up and down the massive mountainsides.