Arkansas Post National Memorial in September
September at Arkansas Post National Memorial averages a daytime high near 85°F and an overnight low around 66°F, with about 2.6" of precipitation. Visitation runs about 0.7× the park's average month, which makes September a quiet month here.
- Average low
- 66°F
- Average high
- 85°F
Range across the year: 35°F to 90°F
- Precipitation
- 2.6 in
- Daylight
- 12.2 hours
Roughly 6% of the park's yearly visitors come in September: roughly 1,700 recreation visits in a typical year, based on National Park Service monthly counts from 1979 to 2025.
That makes September the 8th-busiest of the park's twelve months, sitting between the May peak (1.7×) and the January low (0.6×).
September is our recommended month at Arkansas Post: pleasant weather with noticeably thinner crowds (shoulder season).
The daily average of about 75°F is warm enough that midday heat is worth planning around. These figures are 1991–2020 NOAA climate normals from the nearest station, about 2.5 miles from the park.
Because June, July and August together draw about 33% 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 9.7-hour midwinter low and the 14.3-hour summer high.
Park-wide, 2024 drew 26,203 recreation visits, up 4.7% from 25,032 in 2023.
Across the past decade overall visitation has eased about 22.7%, 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 | 90°F / 72°F | 1.1× Average | 47 Fair |
| September | 85°F / 66°F | 0.7× Quiet | 77 Excellent |
| October | 75°F / 55°F | 0.8× Quiet | 73 Good |
All twelve months at Arkansas Post, with the best time to visit.
Frequently Asked Questions
September averages a daytime high near 85°F and an overnight low around 66°F at Arkansas Post National Memorial, with about 2.6 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 2.5 miles from the park, so conditions inside the park can differ, especially at other elevations.
September is quiet at Arkansas Post National Memorial (about 0.7× the average month). Our best-time score rates it "Excellent" at 77/100. September is our recommended month for this park.
The busiest month is May and the quietest is January. September sits at about 0.7× the park's average, or 6% of annual visitation.
A typical September sees about 2,000 recreation visits at Arkansas Post National Memorial, based on National Park Service monthly counts from 1979–2025.
Where to stay near Arkansas Post in September
Booking a September trip to Arkansas Post National Memorial? Compare hotels, cabins and vacation rentals near the park with live September availability and prices.
Top-rated places to stay near Arkansas Post
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See the full ranking of the best national parks to visit in September.
Source: National Park Service Visitor Use Statistics (1979–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-10-11.