Petroglyph National Monument in August
August at Petroglyph National Monument averages a daytime high near 91°F and an overnight low around 63°F, with about 1.6" of precipitation. Visitation runs about 0.8× the park's average month, which makes August a quiet month here.
- Average low
- 63°F
- Average high
- 91°F
Range across the year: 24°F to 93°F
- Precipitation
- 1.6 in
- Daylight
- 13.3 hours
Roughly 6% of the park's yearly visitors come in August: about 18,000 recreation visits in a typical year, based on National Park Service monthly counts from 1992 to 2025.
It is the quietest month of the year at Petroglyph; by contrast October, the busiest, runs about 1.4× the average — so August is the easiest time to have the place largely to yourself.
On our Best Time to Visit score August rates 71/100 ("Good"). Our recommended month is September: pleasant weather with noticeably thinner crowds (shoulder season).
The daily average of about 77°F is hot, with afternoons near 91°F to plan the day around. These figures are 1991–2020 NOAA climate normals from the nearest station, about 2.2 miles from the park.
August falls inside the park's busiest stretch: June, July and August together pull about 21% of the year's visitors, so a visit this month means sharing the park with the peak-season crowd.
You'll have about 13.3 hours of daylight in August 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 August visit is likely to feel busier than it did a few years ago.
How August compares with the months around it
| Month | Avg high / low | Crowds | Best-time score |
|---|---|---|---|
| July | 93°F / 65°F | 0.8× Quiet | 58 Fair |
| August | 91°F / 63°F | 0.8× Quiet | 71 Good |
| September | 84°F / 56°F | 0.8× Quiet | 84 Excellent |
All twelve months at Petroglyph, with the best time to visit.
Things to do at Petroglyph in August
The National Park Service tags 6 Petroglyph activities for summer. 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
August averages a daytime high near 91°F and an overnight low around 63°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.
August is quiet at Petroglyph National Monument (about 0.8× the average month). Our best-time score rates it "Good" at 71/100. Our recommended month is September.
The busiest month is October and the quietest is August. August sits at about 0.8× the park's average, or 6% of annual visitation.
A typical August sees about 18,000 recreation visits at Petroglyph National Monument, based on National Park Service monthly counts from 1992–2025.
Where to stay near Petroglyph in August
Booking a August trip to Petroglyph National Monument? Compare hotels, cabins and vacation rentals near the park with live August 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 August.
Source: National Park Service Visitor Use Statistics (1992–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-10-11.