How much snow has Grindelwald - Wengen gotten this season and over the last few ski seasons? Grindelwald - Wengen gets an average annual snowfall of 330cm of snow per year and on average has 28 snowfall days. Check out Grindelwald - Wengen historical snowfall using the grid below with average Grindelwald - Wengen snow stats that includes: Average Snowfall, Biggest Snowfall, Snowfall Days and Average Base Depth.