How much snow has Mijanès - Donezan gotten this season and over the last few ski seasons? Mijanès - Donezan gets an average annual snowfall of 170cm of snow per year and on average has 16 annual snowfall days. The current 10-year snowfall record is 80cm, the average snow depth at Mijanès - Donezan is 107cm. Check out Mijanès - Donezan historical snowfall using the grid below with average Mijanès - Donezan 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.