How Crowded Is Colorado in December?
Quiet0.6× average month · best-time score 72/100
December is a quiet month at Colorado National Monument, running about 0.6× the park's average month — roughly 5% of the year's visitors come in December. That puts it between the May peak and the February low. Overall our best-time score rates December as "Good" for a visit. You'll get about 9.3 hours of daylight to explore.
Frequently Asked Questions
December is quiet at Colorado National Monument (about 0.6× the average month). Our best-time score rates it "Good". The single best month overall is February.
The busiest month is May and the quietest is February. December sits at about 0.6× the park's average, or 5% of annual visitation.
Source: National Park Service Visitor Use Statistics (1979–2025). Updated 2026-06-20.