Oklahoma City National Memorial in September
September at Oklahoma City National Memorial averages a daytime high near 84°F and an overnight low around 62°F, with about 3.7" of precipitation. Visitation runs about 0.9× the park's average month, which makes September an average month here.
- Average low
- 62°F
- Average high
- 84°F
Range across the year: 27°F to 93°F
- Precipitation
- 3.7 in
- Daylight
- 12.2 hours
Roughly 8% of the park's yearly visitors come in September: about 30,000 recreation visits in a typical year, based on National Park Service monthly counts from 2000 to 2003.
That makes September the 7th-busiest of the park's twelve months, sitting between the June peak (1.8×) and the January low (0.4×).
On our Best Time to Visit score September rates 68/100 ("Good"). Our recommended month is October: pleasant weather with noticeably thinner crowds (shoulder season).
The daily average of about 73°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 7.5 miles from the park.
Because June, July and August together draw about 38% 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 9.6-hour midwinter low and the 14.4-hour summer high.
Park-wide, 2003 drew 301,018 recreation visits, down 29.8% from 428,977 in 2002.
How September compares with the months around it
| Month | Avg high / low | Crowds | Best-time score |
|---|---|---|---|
| August | 92°F / 69°F | 1.2× Busy | 37 Poor |
| September | 84°F / 62°F | 0.9× Average | 68 Good |
| October | 73°F / 49°F | 0.8× Quiet | 68 Good |
All twelve months at Oklahoma City, with the best time to visit.
Frequently Asked Questions
September averages a daytime high near 84°F and an overnight low around 62°F at Oklahoma City National Memorial, with about 3.7 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 7.5 miles from the park, so conditions inside the park can differ, especially at other elevations.
September is average at Oklahoma City National Memorial (about 0.9× the average month). Our best-time score rates it "Good" at 68/100. Our recommended month is October.
The busiest month is June and the quietest is January. September sits at about 0.9× the park's average, or 8% of annual visitation.
A typical September sees about 30,000 recreation visits at Oklahoma City National Memorial, based on National Park Service monthly counts from 2000–2003.
Where to stay near Oklahoma City in September
Booking a September trip to Oklahoma City National Memorial? Compare hotels, cabins and vacation rentals near the park with live September availability and prices.
Top-rated places to stay near Oklahoma City
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 (2000–2003), NOAA NCEI Climate Normals 1991–2020. Updated 2026-10-11.