How much snow has Polsa - San Valentino gotten this season and over the last few ski seasons? Polsa - San Valentino gets an average annual snowfall of 109cm of snow per year and on average has 7 snowfall days. Check out Polsa - San Valentino historical snowfall using the grid below with average Polsa - San Valentino snow stats that includes: Average Snowfall, Biggest Snowfall, Snowfall Days and Average Base Depth.