How much snow has Wierchomla gotten this season and over the last few ski seasons? Wierchomla gets an average annual snowfall of 67cm of snow per year and on average has 10 snowfall days. Check out Wierchomla historical snowfall using the grid below with average Wierchomla snow stats that includes: Average Snowfall, Biggest Snowfall, Snowfall Days and Average Base Depth.