The best times to visit the park are late May, early June, and most of September, when the weather is fine but the summer crowds have thinned. Mid-June through August is Mesa Verde's most crowded time. In July and August, lines at the museum and visitor center may last half an hour. Afternoon thunderstorms are common in July and August.
The park gets as much as 100 inches of snow in winter. Snow may fall as late as May and as early as October, but there's rarely enough to hamper travel. In winter, the Wetherill Mesa Road is closed, but you can still get a glimpse of some of the Wetherhill Mesa sandstone dwellings, sheltered from the snow in their cliff coves, from the Chapin Mesa area.