Petrified Forest National Park weather in December
December in Petrified Forest National Park: cold, dry, with clean air — a great time to visit.
#8 of 12 months in Petrified Forest National Park · #233 of 604 destinations to visit in December · comfort 75/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Petrified Forest National Park climate normals — December
| Daytime high | 10°C / 49°F | 🧥 cold |
|---|---|---|
| Nighttime low | -2°C / 28°F | |
| Feels like (high) | 5°C / 41°F | |
| Rainfall | 26 mm / 1 in | ☀️ dry |
| Rainy days | 5 days | |
| Humidity | 61% | 💧 humid |
| Dew point | -5°C / 23°F | |
| Sunshine | 7.8 h/day | |
| Daylight | 9.8 h | |
| Wind | 20 km/h / 12 mph | |
| Snowfall | 3.2 cm / 1.3 in | |
| Air quality (US AQI) | 31 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Petrified Forest National Park?
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Petrified Forest National Park in December — FAQ
- Is December a good time to visit Petrified Forest National Park?
- December in Petrified Forest National Park: cold, dry, with clean air — a great time to visit. It ranks #8 of 12 months for Petrified Forest National Park on SeasonMap's comfort score (75/100).
- What is the weather like in Petrified Forest National Park in December?
- In December, Petrified Forest National Park averages a daily high of 9.5°C and a low of -2.2°C, with about 25.6 mm of rain over roughly 5.2 rainy days.
- What is the air quality in Petrified Forest National Park in December?
- Petrified Forest National Park has a mean US Air Quality Index of about 31 in December.
- Does it snow in Petrified Forest National Park in December?
- Petrified Forest National Park sees roughly 3.2 cm of snowfall in December.