Mount Rainier National Park weather in April
April in Mount Rainier National Park: freezing, rainy, with clean air — a fair time to visit.
#7 of 12 months in Mount Rainier National Park · #565 of 604 destinations to visit in April · comfort 58/100 (tier D)
Updated June 2026 · climate normals from ERA5 reanalysis
Mount Rainier National Park climate normals — April
| Daytime high | -1°C / 30°F | 🥶 freezing |
|---|---|---|
| Nighttime low | -9°C / 15°F | |
| Feels like (high) | -5°C / 23°F | |
| Rainfall | 137 mm / 5.4 in | 🌧 rainy |
| Rainy days | 17 days | |
| Humidity | 80% | 💦 very humid |
| Dew point | -11°C / 13°F | |
| Sunshine | 9.5 h/day | |
| Daylight | 13.6 h | |
| Wind | 12 km/h / 7 mph | |
| Snowfall | 60.3 cm / 23.7 in | |
| Air quality (US AQI) | 41 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Mount Rainier National Park in April — FAQ
- Is April a good time to visit Mount Rainier National Park?
- April in Mount Rainier National Park: freezing, rainy, with clean air — a fair time to visit. It ranks #7 of 12 months for Mount Rainier National Park on SeasonMap's comfort score (58/100).
- What is the weather like in Mount Rainier National Park in April?
- In April, Mount Rainier National Park averages a daily high of -1°C and a low of -9.3°C, with about 137.2 mm of rain over roughly 17.4 rainy days.
- What is the air quality in Mount Rainier National Park in April?
- Mount Rainier National Park has a mean US Air Quality Index of about 41 in April.
- Does it snow in Mount Rainier National Park in April?
- Mount Rainier National Park sees roughly 60.3 cm of snowfall in April.