How much snow has Silvretta Montafon gotten this season and over the last few ski seasons? Silvretta Montafon gets an average annual snowfall of 442cm of snow per year and on average has 34 snowfall days. Check out Silvretta Montafon historical snowfall using the grid below with average Silvretta Montafon snow stats that includes: Average Snowfall, Biggest Snowfall, Snowfall Days and Average Base Depth.