Mount Rainier National Park weather in March
March in Mount Rainier National Park: freezing, rainy, with clean air — a fair time to visit.
#8 of 12 months in Mount Rainier National Park · #570 of 604 destinations to visit in March · comfort 50/100 (tier D)
Updated June 2026 · climate normals from ERA5 reanalysis
Mount Rainier National Park climate normals — March
| Daytime high | -4°C / 25°F | 🥶 freezing |
|---|---|---|
| Nighttime low | -11°C / 11°F | |
| Feels like (high) | -8°C / 18°F | |
| Rainfall | 121 mm / 4.8 in | 🌧 rainy |
| Rainy days | 19 days | |
| Humidity | 81% | 💦 very humid |
| Dew point | -11°C / 12°F | |
| Sunshine | 8.3 h/day | |
| Daylight | 11.9 h | |
| Wind | 11 km/h / 7 mph | |
| Snowfall | 80.5 cm / 31.7 in | |
| Air quality (US AQI) | 45 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Mount Rainier National Park?
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Mount Rainier National Park in March — FAQ
- Is March a good time to visit Mount Rainier National Park?
- March in Mount Rainier National Park: freezing, rainy, with clean air — a fair time to visit. It ranks #8 of 12 months for Mount Rainier National Park on SeasonMap's comfort score (50/100).
- What is the weather like in Mount Rainier National Park in March?
- In March, Mount Rainier National Park averages a daily high of -3.8°C and a low of -11.5°C, with about 121.3 mm of rain over roughly 18.6 rainy days.
- What is the air quality in Mount Rainier National Park in March?
- Mount Rainier National Park has a mean US Air Quality Index of about 45 in March.
- Does it snow in Mount Rainier National Park in March?
- Mount Rainier National Park sees roughly 80.5 cm of snowfall in March.