How much snow has Rothenthurm gotten this season and over the last few ski seasons? Rothenthurm gets an average annual snowfall of 250cm of snow per year and on average has 14 snowfall days. Check out Rothenthurm historical snowfall using the grid below with average Rothenthurm snow stats that includes: Average Snowfall, Biggest Snowfall, Snowfall Days and Average Base Depth.