Petroglyph National Monument in September
September at Petroglyph National Monument averages a daytime high near 84°F and an overnight low around 56°F, with about 1.6" of precipitation. Visitation runs about 0.8× the park's average month, which makes September a quiet month here.
- Average low
- 56°F
- Average high
- 84°F
Range across the year: 24°F to 93°F
- Precipitation
- 1.6 in
- Daylight
- 12.2 hours
Roughly 7% of the park's yearly visitors come in September: about 20,000 recreation visits in a typical year, based on National Park Service monthly counts from 1992 to 2025.
That makes September the 10th-busiest of the park's twelve months, sitting between the October peak (1.4×) and the August low (0.8×).
September is our recommended month at Petroglyph: pleasant weather with noticeably thinner crowds (shoulder season).
The daily average of about 70°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 2.2 miles from the park.
Because June, July and August together draw about 21% 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, 2025 drew 310,672 recreation visits, down 12.4% from 354,534 in 2024.
Across the past decade overall visitation has risen about 42%, so a September visit is likely to feel busier than it did a few years ago.
How September compares with the months around it
| Month | Avg high / low | Crowds | Best-time score |
|---|---|---|---|
| August | 91°F / 63°F | 0.8× Quiet | 71 Good |
| September | 84°F / 56°F | 0.8× Quiet | 84 Excellent |
| October | 72°F / 43°F | 1.4× Busy | 38 Poor |
All twelve months at Petroglyph, with the best time to visit.
Things to do at Petroglyph in September
The National Park Service tags 6 Petroglyph activities for fall. Each links to the park's own page for it.
- Boca Negra Canyon · 5-60 minutes
- Picnicking at Petroglyph National Monument · 1-3 hours
- Piedras Marcadas Canyon · 1-2 hours
- Rinconada Canyon · 90-120 minutes
- Volcanoes Day Use Area · 1-4 hours
- WNPA Park Store
Frequently Asked Questions
September averages a daytime high near 84°F and an overnight low around 56°F at Petroglyph National Monument, with about 1.6 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 2.2 miles from the park, so conditions inside the park can differ, especially at other elevations.
September is quiet at Petroglyph National Monument (about 0.8× the average month). Our best-time score rates it "Excellent" at 84/100. September is our recommended month for this park.
The busiest month is October and the quietest is August. September sits at about 0.8× the park's average, or 7% of annual visitation.
A typical September sees about 20,000 recreation visits at Petroglyph National Monument, based on National Park Service monthly counts from 1992–2025.
Where to stay near Petroglyph in September
Booking a September trip to Petroglyph National Monument? Compare hotels, cabins and vacation rentals near the park with live September availability and prices.
Top-rated places to stay near Petroglyph
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 (1992–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-10-11.