How much snow has Flattnitz gotten this season and over the last few ski seasons? Flattnitz gets an average annual snowfall of 85cm of snow per year and on average has 5 annual snowfall days. The current 10-year snowfall record is 80cm, the average snow depth at Flattnitz is 66cm. Check out Flattnitz historical snowfall using the grid below with average Flattnitz 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.