How much snow has Bosco Gurin gotten this season and over the last few ski seasons? Bosco Gurin gets an average annual snowfall of 400cm of snow per year and on average has 14 snowfall days. Check out Bosco Gurin historical snowfall using the grid below with average Bosco Gurin snow stats that includes: Average Snowfall, Biggest Snowfall, Snowfall Days and Average Base Depth.