How much snow has Rottach - Egern gotten this season and over the last few ski seasons? Rottach - Egern gets an average annual snowfall of 113cm of snow per year and on average has 13 annual snowfall days. The current 10-year snowfall record is 30cm, the average snow depth at Rottach - Egern is 77cm. Check out Rottach - Egern historical snowfall using the grid below with average Rottach - Egern snow stats that includes: Average Snowfall, Max Base Depth, Biggest Snowfall, Snowfall Days and Average Base Depth. Click on the Annual Tab to see every year since the 2013-2014 season.