How much snow has St. Gréé di Viola gotten this season and over the last few ski seasons? St. Gréé di Viola gets an average annual snowfall of 52cm of snow per year and on average has 4 snowfall days. Check out St. Gréé di Viola historical snowfall using the grid below with average St. Gréé di Viola snow stats that includes: Average Snowfall, Biggest Snowfall, Snowfall Days and Average Base Depth.