How Crowded Is Nez Perce in August?
August is a busy month at Nez Perce National Historical Park, running about 1.4× the park's average month — roughly 12% of the year's visitors come in August. It is in fact the busiest month of the year here, so expect full parking lots, busy trails and booked-out campgrounds. If crowds bother you, January (the quietest month) or the recommended July are easier. Typical August weather averages a high near 89°F and a low around 51°F. You'll get about 14.0 hours of daylight to explore.
Frequently Asked Questions
August is busy at Nez Perce National Historical Park (about 1.4× the average month). Our best-time score rates it "Fair". The single best month overall is July.
The busiest month is August and the quietest is January. August sits at about 1.4× the park's average, or 12% of annual visitation.
Source: National Park Service Visitor Use Statistics (1979–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-06-20.