Grand Canyon National Park weather in December
December in Grand Canyon National Park: cold, a little rain, with clean air — a great time to visit.
#7 of 12 months in Grand Canyon National Park · #225 of 604 destinations to visit in December · comfort 75/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Grand Canyon National Park climate normals — December
| Daytime high | 12°C / 54°F | 🧥 cold |
|---|---|---|
| Nighttime low | 3°C / 37°F | |
| Feels like (high) | 9°C / 48°F | |
| Rainfall | 38 mm / 1.5 in | 🌦 some rain |
| Rainy days | 6 days | |
| Humidity | 57% | 🍃 comfortable |
| Dew point | -2°C / 29°F | |
| Sunshine | 7.8 h/day | |
| Daylight | 9.8 h | |
| Wind | 13 km/h / 8 mph | |
| Snowfall | 10.8 cm / 4.3 in | |
| Air quality (US AQI) | 35 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Grand Canyon National Park in December — FAQ
- Is December a good time to visit Grand Canyon National Park?
- December in Grand Canyon National Park: cold, a little rain, with clean air — a great time to visit. It ranks #7 of 12 months for Grand Canyon National Park on SeasonMap's comfort score (75/100).
- What is the weather like in Grand Canyon National Park in December?
- In December, Grand Canyon National Park averages a daily high of 12.2°C and a low of 2.6°C, with about 37.9 mm of rain over roughly 6 rainy days.
- What is the air quality in Grand Canyon National Park in December?
- Grand Canyon National Park has a mean US Air Quality Index of about 35 in December.
- Does it snow in Grand Canyon National Park in December?
- Grand Canyon National Park sees roughly 10.8 cm of snowfall in December.