What is the weather like in North Cascades National Park vs Portland in May?

In May, North Cascades National Park averages 5°C high / -3°C low with about 84 mm of rain; Portland averages 21°C high / 10°C low with about 50 mm.

North Cascades National Park vs Portland in May

Portland is the better pick in May — 86 vs 74 on SeasonMap's comfort score. Portland is nice, a little rain, clean air, while North Cascades National Park is cold, rainy, clean air.

North Cascades National Park vs Portland — May climate, side by side

	🇺🇸 North Cascades National Park	🇺🇸 Portland
Comfort score	74/100 (B)	86/100 (A)
Feels-like high	2°C	20°C
Avg high / low	5° / -3°	21° / 10°
Rainfall	84 mm	50 mm
Rainy days	15	8
Humidity	76%	70%
Air quality (AQI)	41	34

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Month by month

North Cascades National Park vs Portland in May — FAQ

Is May better in North Cascades National Park or Portland?: Portland is the better pick in May — 86 vs 74 on SeasonMap's comfort score. Portland is nice, a little rain, clean air, while North Cascades National Park is cold, rainy, clean air.
What is the weather like in North Cascades National Park vs Portland in May?: In May, North Cascades National Park averages 5°C high / -3°C low with about 84 mm of rain; Portland averages 21°C high / 10°C low with about 50 mm.