Stonewall National Monument in September
September at Stonewall National Monument averages a daytime high near 76°F and an overnight low around 62°F, with about 4.3" of precipitation. Visitation runs about 0× the park's average month, which makes September a very quiet month here.
- Average low
- 62°F
- Average high
- 76°F
Range across the year: 28°F to 85°F
- Precipitation
- 4.3 in
- Daylight
- 12.3 hours
Roughly 0% of the park's yearly visitors come in September: roughly 3,000 recreation visits in a typical year, based on National Park Service monthly counts from 2017 to 2025.
It is the quietest month of the year at Stonewall; by contrast June, the busiest, runs about 10.6× the average.
On our Best Time to Visit score September rates 46/100 ("Fair"). Our recommended month is August: the lightest crowds of the park's good-weather months.
The daily average of about 69°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 3.5 miles from the park.
Because June, July and August together draw about 92% 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 9.1-hour midwinter low and the 14.9-hour summer high.
Park-wide, 2024 drew 2,302,641 recreation visits, up 176.5% from 832,650 in 2023.
How September compares with the months around it
| Month | Avg high / low | Crowds | Best-time score |
|---|---|---|---|
| August | 83°F / 69°F | 0.2× Very quiet | 80 Excellent |
| September | 76°F / 62°F | 0.0× Very quiet | 46 Fair |
| October | 65°F / 51°F | 0.2× Very quiet | 33 Poor |
All twelve months at Stonewall, with the best time to visit.
Frequently Asked Questions
September averages a daytime high near 76°F and an overnight low around 62°F at Stonewall National Monument, with about 4.3 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 3.5 miles from the park, so conditions inside the park can differ, especially at other elevations.
September is very quiet at Stonewall National Monument (about 0.0× the average month). Our best-time score rates it "Fair" at 46/100. Our recommended month is August. September draws about 2% of the visits Stonewall sees in an average month. Numbers that low usually mean limited access: closed roads, closed facilities or deep-winter conditions. The count alone does not say which, so check the park's current conditions before planning around September.
The busiest month is June and the quietest is September. September sits at about 0.0× the park's average, or 0% of annual visitation.
A typical September sees about 3,000 recreation visits at Stonewall National Monument, based on National Park Service monthly counts from 2017–2025.
Where to stay near Stonewall in September
Booking a September trip to Stonewall National Monument? Compare hotels, cabins and vacation rentals near the park with live September availability and prices.
Top-rated places to stay near Stonewall
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See the full ranking of the best national parks to visit in September.
Source: National Park Service Visitor Use Statistics (2017–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-10-11.