How Crowded Is Jewel Cave National Monument in May?

May runs about 0.8× Jewel Cave National Monument's average month, which makes it a quiet month here — roughly 6% of the park's yearly visitors come in May.

In a typical May the park sees roughly 7,600 recreation visits, based on National Park Service monthly counts from 1979 to 2025.

That makes May the 5th-busiest of the park's twelve months, sitting between the July peak (3.5×) and the January low (0×).

On our Best Time to Visit score May rates 67/100 ("Good") — the single best-rated month at Jewel Cave, balancing crowds against weather and daylight.

Typical May weather, from 1991–2020 NOAA climate normals at the nearest station, averages a daytime high near 65°F and an overnight low around 41°F, with about 2.9" of precipitation.

That average of about 53°F is a comfortable range for hiking and being outdoors all day.

Because June, July and August together draw about 71% of annual visitors, choosing May instead steps outside that summer crush — the single biggest lever on how crowded the park feels.

You'll have about 14.5 hours of daylight in May to explore — between the 8.7-hour midwinter low and the 15.2-hour summer high.

Park-wide, 2024 drew 145,332 recreation visits, up 19.6% from 121,536 in 2023.

Across the past decade overall visitation has eased about 20.1%, so May may feel a touch quieter than it once did.