How Crowded Is Greenbelt in December?
Very quiet0.4× average month · best-time score 76/100
December is a very quiet month at Greenbelt Park, running about 0.4× the park's average month — roughly 3% of the year's visitors come in December. That puts it between the May peak and the January low. Overall our best-time score rates December as "Excellent" for a visit. You'll get about 9.3 hours of daylight to explore.
Frequently Asked Questions
December is very quiet at Greenbelt Park (about 0.4× the average month). Our best-time score rates it "Excellent". The single best month overall is January.
The busiest month is May and the quietest is January. December sits at about 0.4× the park's average, or 3% of annual visitation.
Source: National Park Service Visitor Use Statistics (1979–2025). Updated 2026-06-20.