Arches National Park weather in December
December in Arches National Park: cold, a little rain, with clean air — a great time to visit.
#9 of 12 months in Arches National Park · #287 of 604 destinations to visit in December · comfort 70/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Arches National Park climate normals — December
| Daytime high | 5°C / 41°F | 🧥 cold |
|---|---|---|
| Nighttime low | -4°C / 25°F | |
| Feels like (high) | 1°C / 34°F | |
| Rainfall | 32 mm / 1.3 in | 🌦 some rain |
| Rainy days | 6 days | |
| Humidity | 63% | 💧 humid |
| Dew point | -6°C / 20°F | |
| Sunshine | 7.6 h/day | |
| Daylight | 9.5 h | |
| Wind | 10 km/h / 6 mph | |
| Snowfall | 10.6 cm / 4.2 in | |
| Air quality (US AQI) | 30 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Arches National Park?
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Arches National Park in December — FAQ
- Is December a good time to visit Arches National Park?
- December in Arches National Park: cold, a little rain, with clean air — a great time to visit. It ranks #9 of 12 months for Arches National Park on SeasonMap's comfort score (70/100).
- What is the weather like in Arches National Park in December?
- In December, Arches National Park averages a daily high of 4.9°C and a low of -4.1°C, with about 32.1 mm of rain over roughly 6.2 rainy days.
- What is the air quality in Arches National Park in December?
- Arches National Park has a mean US Air Quality Index of about 30 in December.
- Does it snow in Arches National Park in December?
- Arches National Park sees roughly 10.6 cm of snowfall in December.