How Crowded Is Nez Perce National Historical Park in August?

August runs about 1.4× Nez Perce National Historical Park's average month, which makes it a busy month here — roughly 12% of the park's yearly visitors come in August.

In a typical August the park sees about 36,000 recreation visits, based on National Park Service monthly counts from 1979 to 2025.

It is the single busiest month of the year at Nez Perce; January, the quietest, runs only about 0.7× the average — a 2-to-1 swing between high and low season.

On our Best Time to Visit score August rates 54/100 ("Fair"), versus the top-rated July at 67/100 — best overall balance of crowds, weather and daylight.

Typical August weather, from 1991–2020 NOAA climate normals at the nearest station, averages a daytime high near 89°F and an overnight low around 51°F.

That average of about 70°F is a comfortable range for hiking and being outdoors all day.

August falls inside the park's busiest stretch: June, July and August together pull about 33% of the year's visitors, so a visit this month means sharing the park with the peak-season crowd.

You'll have about 14 hours of daylight in August to explore — between the 8.5-hour midwinter low and the 15.5-hour summer high.

Park-wide, 2025 drew 343,910 recreation visits, about flat from 342,924 in 2024.

Across the past decade overall visitation has risen about 31.8%, so a August visit is likely to feel busier than it did a few years ago.