How much snow has Gresse en Vercors gotten this season and over the last few ski seasons? Gresse en Vercors gets an average annual snowfall of 109cm of snow per year and on average has 9 snowfall days. Check out Gresse en Vercors historical snowfall using the grid below with average Gresse en Vercors snow stats that includes: Average Snowfall, Biggest Snowfall, Snowfall Days and Average Base Depth.