North Cascades National Park weather in March
March in North Cascades National Park: freezing, rainy, with clean air — a fair time to visit.
#8 of 12 months in North Cascades National Park · #565 of 604 destinations to visit in March · comfort 51/100 (tier D)
Updated June 2026 · climate normals from ERA5 reanalysis
North Cascades National Park climate normals — March
| Daytime high | -3°C / 26°F | 🥶 freezing |
|---|---|---|
| Nighttime low | -10°C / 14°F | |
| Feels like (high) | -7°C / 19°F | |
| Rainfall | 116 mm / 4.5 in | 🌧 rainy |
| Rainy days | 16 days | |
| Humidity | 77% | 💦 very humid |
| Dew point | -11°C / 13°F | |
| Sunshine | 8.2 h/day | |
| Daylight | 11.9 h | |
| Wind | 8 km/h / 5 mph | |
| Snowfall | 107.5 cm / 42.3 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 North Cascades National Park?
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North Cascades National Park in March — FAQ
- Is March a good time to visit North Cascades National Park?
- March in North Cascades National Park: freezing, rainy, with clean air — a fair time to visit. It ranks #8 of 12 months for North Cascades National Park on SeasonMap's comfort score (51/100).
- What is the weather like in North Cascades National Park in March?
- In March, North Cascades National Park averages a daily high of -3.2°C and a low of -10.2°C, with about 115.5 mm of rain over roughly 15.6 rainy days.
- What is the air quality in North Cascades National Park in March?
- North Cascades National Park has a mean US Air Quality Index of about 45 in March.
- Does it snow in North Cascades National Park in March?
- North Cascades National Park sees roughly 107.5 cm of snowfall in March.