How much snow has Aspen Snowmass gotten this season and over the last few ski seasons? Aspen Snowmass gets an average annual snowfall of 298" of snow per year and on average has 64 snowfall days. Check out Aspen Snowmass historical snowfall using the grid below with average Aspen Snowmass snow stats that includes: Average Snowfall, Biggest Snowfall, Snowfall Days and Average Base Depth.