How much snow has Mount Sunapee gotten this season and over the last few ski seasons? Mount Sunapee gets an average annual snowfall of 97" of snow per year and on average has 25 annual snowfall days. The current 10-year snowfall record is 22". Check out Mount Sunapee historical snowfall using the grid below with average Mount Sunapee snow stats that includes: Average Snowfall, Max Base Depth, Biggest Snowfall, Snowfall Days and Average Base Depth.