How much snow has OZ 3300 gotten this season and over the last few ski seasons? OZ 3300 gets an average annual snowfall of 345cm of snow per year and on average has 33 snowfall days. Check out OZ 3300 historical snowfall using the grid below with average OZ 3300 snow stats that includes: Average Snowfall, Biggest Snowfall, Snowfall Days and Average Base Depth.