Petrified Forest National Park weather in August
August in Petrified Forest National Park: hot, dry, with clean air — a good time to visit.
#11 of 12 months in Petrified Forest National Park · #444 of 604 destinations to visit in August · comfort 67/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Petrified Forest National Park climate normals — August
| Daytime high | 33°C / 91°F | 🥵 hot |
|---|---|---|
| Nighttime low | 19°C / 66°F | |
| Feels like (high) | 31°C / 88°F | |
| Rainfall | 14 mm / 0.6 in | ☀️ dry |
| Rainy days | 3 days | |
| Humidity | 45% | 🍃 comfortable |
| Dew point | 11°C / 51°F | |
| Sunshine | 12.2 h/day | |
| Daylight | 13.4 h | |
| Wind | 22 km/h / 14 mph | |
| Air quality (US AQI) | 43 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Petrified Forest National Park?
Loading map…
Petrified Forest National Park in August — FAQ
- Is August a good time to visit Petrified Forest National Park?
- August in Petrified Forest National Park: hot, dry, with clean air — a good time to visit. It ranks #11 of 12 months for Petrified Forest National Park on SeasonMap's comfort score (67/100).
- What is the weather like in Petrified Forest National Park in August?
- In August, Petrified Forest National Park averages a daily high of 32.8°C and a low of 19°C, with about 14.3 mm of rain over roughly 3 rainy days.
- What is the air quality in Petrified Forest National Park in August?
- Petrified Forest National Park has a mean US Air Quality Index of about 43 in August.