Camp Nelson National Monument in September
September at Camp Nelson National Monument averages a daytime high near 80°F and an overnight low around 58°F, with about 3.4" of precipitation. Visitation runs about 1.1× the park's average month, which makes September an average month here.
- Average low
- 58°F
- Average high
- 80°F
Range across the year: 27°F to 86°F
- Precipitation
- 3.4 in
- Daylight
- 12.2 hours
Roughly 9% of the park's yearly visitors come in September: roughly 1,900 recreation visits in a typical year, based on National Park Service monthly counts from 2021 to 2025.
That makes September the 5th-busiest of the park's twelve months, sitting between the July peak (1.4×) and the January low (0.4×).
On our Best Time to Visit score September rates 60/100 ("Good"). Our recommended month is April: pleasant weather with noticeably thinner crowds (shoulder season).
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 6 miles from the park.
Because June, July and August together draw about 32% 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 9.4-hour midwinter low and the 14.6-hour summer high.
Park-wide, 2025 drew 20,763 recreation visits, down 40.2% from 34,716 in 2024.
How September compares with the months around it
| Month | Avg high / low | Crowds | Best-time score |
|---|---|---|---|
| August | 86°F / 65°F | 1.2× Busy | 48 Fair |
| September | 80°F / 58°F | 1.1× Average | 60 Good |
| October | 71°F / 48°F | 1.0× Average | 50 Fair |
All twelve months at Camp Nelson, with the best time to visit.
Frequently Asked Questions
September averages a daytime high near 80°F and an overnight low around 58°F at Camp Nelson National Monument, with about 3.4 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 6 miles from the park, so conditions inside the park can differ, especially at other elevations.
September is average at Camp Nelson National Monument (about 1.1× the average month). Our best-time score rates it "Good" at 60/100. Our recommended month is April.
The busiest month is July and the quietest is January. September sits at about 1.1× the park's average, or 9% of annual visitation.
A typical September sees about 2,000 recreation visits at Camp Nelson National Monument, based on National Park Service monthly counts from 2021–2025.
Where to stay near Camp Nelson in September
Booking a September trip to Camp Nelson National Monument? Compare hotels, cabins and vacation rentals near the park with live September availability and prices.
Top-rated places to stay near Camp Nelson
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 (2021–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-10-11.