Friendship Hill National Historic Site in September
September at Friendship Hill National Historic Site averages a daytime high near 77°F and an overnight low around 54°F, with about 3.4" of precipitation. Visitation runs about 3.9× the park's average month, which makes September a very busy month here.
- Average low
- 54°F
- Average high
- 77°F
Range across the year: 21°F to 84°F
- Precipitation
- 3.4 in
- Daylight
- 12.2 hours
Roughly 32% of the park's yearly visitors come in September: roughly 8,400 recreation visits in a typical year, based on National Park Service monthly counts from 1983 to 2025.
It is the single busiest month of the year at Friendship Hill; January, the quietest, runs only about 0.3× the average — a 13-to-1 swing between high and low season.
On our Best Time to Visit score September rates 45/100 ("Fair"). Our recommended month is October: the lightest crowds of the park's good-weather months.
The daily average of about 65°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 0.7 miles from the park.
Because June, July and August together draw about 27% 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 12.2 hours of daylight in September to explore — between the 9.2-hour midwinter low and the 14.8-hour summer high.
Park-wide, 2025 drew 18,080 recreation visits, down 7.1% from 19,465 in 2024.
Across the past decade overall visitation has eased about 48%, 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 | 83°F / 61°F | 1.2× Busy | 76 Excellent |
| September | 77°F / 54°F | 3.9× Very busy | 45 Fair |
| October | 65°F / 42°F | 1.0× Average | 62 Good |
All twelve months at Friendship Hill, with the best time to visit.
Things to do at Friendship Hill in September
The National Park Service tags 4 Friendship Hill activities for fall. Each links to the park's own page for it.
- Friendship Hill Junior Ranger · 1-3 hours
- Friendship Hill Senior Ranger · 2-4 hours
- Hiking at Friendship Hill · 30-300 minutes
- Tour the Gallatin House and Historic Knoll · 15-75 minutes
Frequently Asked Questions
September averages a daytime high near 77°F and an overnight low around 54°F at Friendship Hill National Historic Site, with about 3.4 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 0.7 miles from the park, so conditions inside the park can differ, especially at other elevations.
September is very busy at Friendship Hill National Historic Site (about 3.9× the average month). Our best-time score rates it "Fair" at 45/100. Our recommended month is October.
The busiest month is September and the quietest is January. September sits at about 3.9× the park's average, or 32% of annual visitation.
A typical September sees about 8,000 recreation visits at Friendship Hill National Historic Site, based on National Park Service monthly counts from 1983–2025.
Where to stay near Friendship Hill in September
Booking a September trip to Friendship Hill National Historic Site? Compare hotels, cabins and vacation rentals near the park with live September availability and prices.
Top-rated places to stay near Friendship Hill
Prices for Oct 30–Nov 1, 4 adults. Change dates on the map below.
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See the full ranking of the best national parks to visit in September.
Source: National Park Service Visitor Use Statistics (1983–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-10-11.