How much snow has Selwyn Snowfields gotten this season and over the last few ski seasons? Selwyn Snowfields gets an average annual snowfall of 28" of snow per year and on average has 10 snowfall days. Check out Selwyn Snowfields historical snowfall using the grid below with average Selwyn Snowfields snow stats that includes: Average Snowfall, Biggest Snowfall, Snowfall Days and Average Base Depth.