How Crowded Is Minidoka National Historic Site in May?

May runs about 1.2× Minidoka National Historic Site's average month, which makes it a busy month here — roughly 10% of the park's yearly visitors come in May.

In a typical May the park sees roughly 1,800 recreation visits, based on National Park Service monthly counts from 2017 to 2025.

That makes May the 5th-busiest of the park's twelve months, sitting between the July peak (2.6×) and the December low (0.1×).

On our Best Time to Visit score May rates 63/100 ("Good"), versus the top-rated September at 65/100 — best overall balance of crowds, weather and daylight.

Typical May weather, from 1991–2020 NOAA climate normals at the nearest station, averages a daytime high near 69°F and an overnight low around 42°F, with about 1.3" of precipitation.

That average of about 56°F is a comfortable range for hiking and being outdoors all day.

Because June, July and August together draw about 58% 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 14.4 hours of daylight in May to explore — between the 8.9-hour midwinter low and the 15.1-hour summer high.

Park-wide, 2025 drew 43,539 recreation visits, up 137.2% from 18,358 in 2023.

Across the past decade overall visitation has risen about 68%, so a May visit is likely to feel busier than it did a few years ago.