How Crowded Is Jewel Cave National Monument in December?

December runs about 0× Jewel Cave National Monument's average month, which makes it a very quiet month here — roughly 0% of the park's yearly visitors come in December.

In a typical December the park sees about 290 recreation visits, based on National Park Service monthly counts from 1979 to 2025.

That makes December the 11th-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 December rates 41/100 ("Poor"), versus the top-rated May at 67/100 — best overall balance of crowds, weather and daylight.

Typical December weather, from 1991–2020 NOAA climate normals at the nearest station, averages a daytime high near 36°F and an overnight low around 12°F, with about 0.5" of precipitation and roughly 7" of snow.

That average of about 24°F is cold, with winter conditions likely on higher ground.

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

You'll have about 8.7 hours of daylight in December to explore — near the year-round minimum.

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 December may feel a touch quieter than it once did.