With its long season, it might seem like you could go to A-Basin almost any time. The snow is usually deep with good coverage for the majority of winter, from mid-December through April. Of course, that timeframe also includes some of the coldest months of the year in the highest of high country, so you’ll want to pack and layer accordingly if you visit from December through February. Arapahoe Basin doesn’t usually get too crowded, though like any resort it has times that are busier than others. These are typically over the Christmas / New Year’s holiday, the US federal holiday weekends in mid-January and mid-February, and spring break in March. During those times, you might see some crowding on the beginner and intermediate runs due to the simple fact there just aren’t many of them to begin with. That said, with its reputation for extreme terrain, it doesn’t really draw a lot of beginners and intermediates to begin with.