How much snow has Les Monts d'Olmes gotten this season and over the last few ski seasons? Les Monts d'Olmes gets an average annual snowfall of 259cm of snow per year and on average has 18 snowfall days. Check out Les Monts d'Olmes historical snowfall using the grid below with average Les Monts d'Olmes snow stats that includes: Average Snowfall, Biggest Snowfall, Snowfall Days and Average Base Depth.