How Crowded Is Minuteman Missile National Historic Site in May?

May runs about 1.1× Minuteman Missile National Historic Site's average month, which makes it an average month here — roughly 9% of the park's yearly visitors come in May.

In a typical May the park sees about 11,000 recreation visits, based on National Park Service monthly counts from 2004 to 2025.

That makes May the 5th-busiest of the park's twelve months, sitting between the July peak (3×) and the February low (0.1×).

On our Best Time to Visit score May rates 65/100 ("Good") — the single best-rated month at Minuteman Missile, balancing crowds against weather and daylight.

Typical May weather, from 1991–2020 NOAA climate normals at the nearest station, averages a daytime high near 68°F and an overnight low around 42°F, with about 2.9" of precipitation.

That average of about 55°F is a comfortable range for hiking and being outdoors all day.

Because June, July and August together draw about 61% 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 15.3-hour summer high.

Park-wide, 2025 drew 102,146 recreation visits, down 13.5% from 118,108 in 2024.

Across the past decade overall visitation has eased about 9.3%, so May may feel a touch quieter than it once did.