How Crowded Is Colorado in May?
May is a busy month at Colorado National Monument, running about 1.3× the park's average month — roughly 11% of the year's visitors come in May. It is in fact the busiest month of the year here, so expect full parking lots, busy trails and booked-out campgrounds. If crowds bother you, February (the quietest month) or the recommended February are easier. You'll get about 14.1 hours of daylight to explore.
Frequently Asked Questions
May is busy at Colorado National Monument (about 1.3× the average month). Our best-time score rates it "Poor". The single best month overall is February.
The busiest month is May and the quietest is February. May sits at about 1.3× the park's average, or 11% of annual visitation.
Source: National Park Service Visitor Use Statistics (1979–2025). Updated 2026-06-20.