Olympic National Park weather in January
January in Olympic National Park: freezing, soaked, with clean air — one of the weakest months to visit.
#11 of 12 months in Olympic National Park · #544 of 604 destinations to visit in January · comfort 37/100 (tier F)
Updated June 2026 · climate normals from ERA5 reanalysis
Olympic National Park climate normals — January
| Daytime high | 1°C / 34°F | 🥶 freezing |
|---|---|---|
| Nighttime low | -4°C / 25°F | |
| Feels like (high) | -2°C / 28°F | |
| Rainfall | 449 mm / 17.7 in | ⛈ soaked |
| Rainy days | 20 days | |
| Humidity | 87% | 💦 very humid |
| Dew point | -4°C / 25°F | |
| Sunshine | 4 h/day | |
| Daylight | 8.9 h | |
| Wind | 11 km/h / 7 mph | |
| Snowfall | 118.3 cm / 46.6 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 Olympic National Park?
Loading map…
Olympic National Park in January — FAQ
- Is January a good time to visit Olympic National Park?
- January in Olympic National Park: freezing, soaked, with clean air — one of the weakest months to visit. It ranks #11 of 12 months for Olympic National Park on SeasonMap's comfort score (37/100).
- What is the weather like in Olympic National Park in January?
- In January, Olympic National Park averages a daily high of 1.1°C and a low of -4.1°C, with about 448.5 mm of rain over roughly 20 rainy days.
- What is the air quality in Olympic National Park in January?
- Olympic National Park has a mean US Air Quality Index of about 31 in January.
- Does it snow in Olympic National Park in January?
- Olympic National Park sees roughly 118.3 cm of snowfall in January.