How much snow has Nevados de Chillan gotten this season and over the last few ski seasons? Nevados de Chillan gets an average annual snowfall of 54" of snow per year and on average has 8 snowfall days. Check out Nevados de Chillan historical snowfall using the grid below with average Nevados de Chillan snow stats that includes: Average Snowfall, Biggest Snowfall, Snowfall Days and Average Base Depth.