Knife River Indian Villages National Historic Site in September
September at Knife River Indian Villages National Historic Site averages a daytime high near 71°F and an overnight low around 48°F. Visitation runs about 1.8× the park's average month, which makes September a very busy month here.
- Average low
- 48°F
- Average high
- 71°F
Range across the year: 3°F to 81°F
- Daylight
- 12.3 hours
Roughly 15% of the park's yearly visitors come in September: roughly 1,500 recreation visits in a typical year, based on National Park Service monthly counts from 1981 to 2025.
That makes September the 4th-busiest of the park's twelve months, sitting between the July peak (2.9×) and the January low (0.1×).
On our Best Time to Visit score September rates 60/100 ("Good"). Our recommended month is May: the lightest crowds of the park's good-weather months.
The daily average of about 59°F is a comfortable range for hiking and being outdoors all day. These figures are 1991–2020 NOAA climate normals from the nearest station, about 10 miles from the park.
Because June, July and August together draw about 61% of annual visitors, choosing September instead steps outside that summer crush — the single biggest lever on how crowded the park feels.
You'll have about 12.3 hours of daylight in September to explore — between the 8.3-hour midwinter low and the 15.7-hour summer high.
Park-wide, 2025 drew 9,048 recreation visits, down 16.7% from 10,867 in 2024.
Across the past decade overall visitation has eased about 7.2%, so September may feel a touch quieter than it once did.
How September compares with the months around it
| Month | Avg high / low | Crowds | Best-time score |
|---|---|---|---|
| August | 80°F / 57°F | 2.4× Very busy | 64 Good |
| September | 71°F / 48°F | 1.8× Very busy | 60 Good |
| October | 54°F / 36°F | 0.6× Quiet | 58 Fair |
All twelve months at Knife River Indian Villages, with the best time to visit.
Frequently Asked Questions
September averages a daytime high near 71°F and an overnight low around 48°F at Knife River Indian Villages National Historic Site. These are 1991–2020 NOAA climate normals from the nearest station, about 10 miles from the park, so conditions inside the park can differ, especially at other elevations.
September is very busy at Knife River Indian Villages National Historic Site (about 1.8× the average month). Our best-time score rates it "Good" at 60/100. Our recommended month is May.
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.
A typical September sees about 1,000 recreation visits at Knife River Indian Villages National Historic Site, based on National Park Service monthly counts from 1981–2025.
Where to stay near Knife River Indian Villages in September
Booking a September trip to Knife River Indian Villages National Historic Site? Compare hotels, cabins and vacation rentals near the park with live September availability and prices.
Top-rated places to stay near Knife River Indian Villages
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See the full ranking of the best national parks to visit in September.
Source: National Park Service Visitor Use Statistics (1981–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-10-11.