Zion National Park weather in December
December in Zion National Park: cold, a little rain, with clean air — a great time to visit.
#10 of 12 months in Zion National Park · #284 of 604 destinations to visit in December · comfort 71/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Zion National Park climate normals — December
| Daytime high | 6°C / 43°F | 🧥 cold |
|---|---|---|
| Nighttime low | -5°C / 23°F | |
| Feels like (high) | 2°C / 36°F | |
| Rainfall | 52 mm / 2.1 in | 🌦 some rain |
| Rainy days | 6 days | |
| Humidity | 59% | 🍃 comfortable |
| Dew point | -8°C / 17°F | |
| Sunshine | 7.6 h/day | |
| Daylight | 9.6 h | |
| Wind | 12 km/h / 8 mph | |
| Snowfall | 18 cm / 7.1 in | |
| Air quality (US AQI) | 33 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Zion National Park in December — FAQ
- Is December a good time to visit Zion National Park?
- December in Zion National Park: cold, a little rain, with clean air — a great time to visit. It ranks #10 of 12 months for Zion National Park on SeasonMap's comfort score (71/100).
- What is the weather like in Zion National Park in December?
- In December, Zion National Park averages a daily high of 6°C and a low of -5.2°C, with about 52.3 mm of rain over roughly 6.4 rainy days.
- What is the air quality in Zion National Park in December?
- Zion National Park has a mean US Air Quality Index of about 33 in December.
- Does it snow in Zion National Park in December?
- Zion National Park sees roughly 18 cm of snowfall in December.