North Cascades National Park weather in April
April in North Cascades National Park: freezing, rainy, with clean air — a fair time to visit.
#7 of 12 months in North Cascades National Park · #558 of 604 destinations to visit in April · comfort 59/100 (tier D)
Updated June 2026 · climate normals from ERA5 reanalysis
North Cascades National Park climate normals — April
| Daytime high | 0°C / 31°F | 🥶 freezing |
|---|---|---|
| Nighttime low | -8°C / 17°F | |
| Feels like (high) | -4°C / 25°F | |
| Rainfall | 120 mm / 4.7 in | 🌧 rainy |
| Rainy days | 16 days | |
| Humidity | 77% | 💦 very humid |
| Dew point | -10°C / 15°F | |
| Sunshine | 9.4 h/day | |
| Daylight | 13.7 h | |
| Wind | 8 km/h / 5 mph | |
| Snowfall | 75.2 cm / 29.6 in | |
| Air quality (US AQI) | 42 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is North Cascades National Park?
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North Cascades National Park in April — FAQ
- Is April a good time to visit North Cascades National Park?
- April in North Cascades National Park: freezing, rainy, with clean air — a fair time to visit. It ranks #7 of 12 months for North Cascades National Park on SeasonMap's comfort score (59/100).
- What is the weather like in North Cascades National Park in April?
- In April, North Cascades National Park averages a daily high of -0.4°C and a low of -8.1°C, with about 120.2 mm of rain over roughly 15.6 rainy days.
- What is the air quality in North Cascades National Park in April?
- North Cascades National Park has a mean US Air Quality Index of about 42 in April.
- Does it snow in North Cascades National Park in April?
- North Cascades National Park sees roughly 75.2 cm of snowfall in April.