How much snow has Kötschach - Mauthen gotten this season and over the last few ski seasons? Kötschach - Mauthen gets an average annual snowfall of 20cm of snow per year and on average has 2 snowfall days. Check out Kötschach - Mauthen historical snowfall using the grid below with average Kötschach - Mauthen snow stats that includes: Average Snowfall, Biggest Snowfall, Snowfall Days and Average Base Depth.