How much snow has Arosa Lenzerheide gotten this season and over the last few ski seasons? Arosa Lenzerheide gets an average annual snowfall of 460cm of snow per year and on average has 36 snowfall days. Check out Arosa Lenzerheide historical snowfall using the grid below with average Arosa Lenzerheide snow stats that includes: Average Snowfall, Biggest Snowfall, Snowfall Days and Average Base Depth.