How Crowded Is Valles Caldera in May?
May is an average month at Valles Caldera National Preserve, running about 1.1× the park's average month — roughly 9% of the year's visitors come in May. That puts it between the September peak and the February low. Overall our best-time score rates May as "Fair" for a visit. Typical May weather averages a high near 62°F and a low around 32°F, with about 1.4" of precipitation. You'll get about 13.9 hours of daylight to explore.
Frequently Asked Questions
May is average at Valles Caldera National Preserve (about 1.1× the average month). Our best-time score rates it "Fair". The single best month overall is June.
The busiest month is September and the quietest is February. May sits at about 1.1× the park's average, or 9% of annual visitation.
Source: National Park Service Visitor Use Statistics (2020–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-06-20.