How Crowded Is Waco Mammoth National Monument in May?

May runs about 1.1× Waco Mammoth National Monument's average month, which makes it an average month here — roughly 10% of the park's yearly visitors come in May.

In a typical May the park sees roughly 9,100 recreation visits, based on National Park Service monthly counts from 2015 to 2025.

That makes May the 5th-busiest of the park's twelve months, sitting between the March peak (1.9×) and the January low (0.5×).

On our Best Time to Visit score May rates 66/100 ("Good"), versus the top-rated September at 73/100 — pleasant weather with noticeably thinner crowds (shoulder season).

Typical May weather, from 1991–2020 NOAA climate normals at the nearest station, averages a daytime high near 83°F and an overnight low around 64°F, with about 4.4" of precipitation.

That average of about 74°F is a comfortable range for hiking and being outdoors all day.

Because June, July and August together draw about 28% 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 13.6 hours of daylight in May to explore — between the 9.9-hour midwinter low and the 14.1-hour summer high.

Park-wide, 2025 drew 91,678 recreation visits, down 18.1% from 111,961 in 2024.