Olympic National Park weather in March
March in Olympic National Park: freezing, soaked, with clean air — a fair time to visit.
#8 of 12 months in Olympic National Park · #524 of 604 destinations to visit in March · comfort 58/100 (tier D)
Updated June 2026 · climate normals from ERA5 reanalysis
Olympic National Park climate normals — March
| Daytime high | 2°C / 36°F | 🥶 freezing |
|---|---|---|
| Nighttime low | -5°C / 22°F | |
| Feels like (high) | -1°C / 30°F | |
| Rainfall | 171 mm / 6.7 in | ⛈ soaked |
| Rainy days | 18 days | |
| Humidity | 84% | 💦 very humid |
| Dew point | -5°C / 24°F | |
| Sunshine | 8.1 h/day | |
| Daylight | 11.9 h | |
| Wind | 10 km/h / 6 mph | |
| Snowfall | 79.3 cm / 31.2 in | |
| Air quality (US AQI) | 41 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Olympic National Park?
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Olympic National Park in March — FAQ
- Is March a good time to visit Olympic National Park?
- March in Olympic National Park: freezing, soaked, with clean air — a fair time to visit. It ranks #8 of 12 months for Olympic National Park on SeasonMap's comfort score (58/100).
- What is the weather like in Olympic National Park in March?
- In March, Olympic National Park averages a daily high of 2°C and a low of -5.4°C, with about 170.8 mm of rain over roughly 18.4 rainy days.
- What is the air quality in Olympic National Park in March?
- Olympic National Park has a mean US Air Quality Index of about 41 in March.
- Does it snow in Olympic National Park in March?
- Olympic National Park sees roughly 79.3 cm of snowfall in March.