Crater Lake National Park weather in December
December in Crater Lake National Park: freezing, soaked, with clean air — one of the weakest months to visit.
#12 of 12 months in Crater Lake National Park · #493 of 604 destinations to visit in December · comfort 49/100 (tier F)
Updated June 2026 · climate normals from ERA5 reanalysis
Crater Lake National Park climate normals — December
| Daytime high | 1°C / 35°F | 🥶 freezing |
|---|---|---|
| Nighttime low | -5°C / 24°F | |
| Feels like (high) | -2°C / 28°F | |
| Rainfall | 186 mm / 7.3 in | ⛈ soaked |
| Rainy days | 19 days | |
| Humidity | 87% | 💦 very humid |
| Dew point | -4°C / 25°F | |
| Sunshine | 4.9 h/day | |
| Daylight | 9.1 h | |
| Wind | 12 km/h / 8 mph | |
| Snowfall | 101.5 cm / 40 in | |
| Air quality (US AQI) | 39 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Crater Lake National Park?
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Crater Lake National Park in December — FAQ
- Is December a good time to visit Crater Lake National Park?
- December in Crater Lake National Park: freezing, soaked, with clean air — one of the weakest months to visit. It ranks #12 of 12 months for Crater Lake National Park on SeasonMap's comfort score (49/100).
- What is the weather like in Crater Lake National Park in December?
- In December, Crater Lake National Park averages a daily high of 1.4°C and a low of -4.7°C, with about 186.2 mm of rain over roughly 19 rainy days.
- What is the air quality in Crater Lake National Park in December?
- Crater Lake National Park has a mean US Air Quality Index of about 39 in December.
- Does it snow in Crater Lake National Park in December?
- Crater Lake National Park sees roughly 101.5 cm of snowfall in December.