How much snow has Itter - SkiWelt gotten this season and over the last few ski seasons? Itter - SkiWelt gets an average annual snowfall of 261cm of snow per year and on average has 27 snowfall days. Check out Itter - SkiWelt historical snowfall using the grid below with average Itter - SkiWelt snow stats that includes: Average Snowfall, Biggest Snowfall, Snowfall Days and Average Base Depth.