How Crowded Is Knife River Indian Villages in September?
September is a very busy month at Knife River Indian Villages National Historic Site, running about 1.8× the park's average month — roughly 15% of the year's visitors come in September. That puts it between the July peak and the January low. Overall our best-time score rates September as "Fair" for a visit. Typical September weather averages a high near 71°F and a low around 48°F. You'll get about 12.3 hours of daylight to explore.
Frequently Asked Questions
September is very busy at Knife River Indian Villages National Historic Site (about 1.8× the average month). Our best-time score rates it "Fair". The single best month overall is June.
The busiest month is July and the quietest is January. September sits at about 1.8× the park's average, or 15% of annual visitation.
Source: National Park Service Visitor Use Statistics (1981–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-06-20.