How much snow has Oy-Mittelberg gotten this season and over the last few ski seasons? Oy-Mittelberg gets an average annual snowfall of 21cm of snow per year and on average has 3 snowfall days. Check out Oy-Mittelberg historical snowfall using the grid below with average Oy-Mittelberg snow stats that includes: Average Snowfall, Biggest Snowfall, Snowfall Days and Average Base Depth.