How much snow has Pralognan la Vanoise gotten this season and over the last few ski seasons? Pralognan la Vanoise gets an average annual snowfall of 262cm of snow per year and on average has 29 snowfall days. Check out Pralognan la Vanoise historical snowfall using the grid below with average Pralognan la Vanoise snow stats that includes: Average Snowfall, Biggest Snowfall, Snowfall Days and Average Base Depth.