What is the weather like in Chicago vs Portland in October?

In October, Chicago averages 18°C high / 9°C low with about 117 mm of rain; Portland averages 18°C high / 9°C low with about 109 mm.

Chicago vs Portland in October

Chicago and Portland are nearly tied in October — 73 vs 72 on SeasonMap's comfort score. Chicago is nice, rainy, clean air; Portland is nice, rainy, clean air.

Chicago vs Portland — October climate, side by side

	Chicago	Portland
Comfort score	73/100 (B)	72/100 (B)
Feels-like high	16°C	16°C
Avg high / low	18° / 9°	18° / 9°
Rainfall	117 mm	109 mm
Rainy days	10	11
Humidity	70%	79%
Air quality (AQI)	35	32

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

Chicago vs Portland in October — FAQ

Is October better in Chicago or Portland?: Chicago and Portland are nearly tied in October — 73 vs 72 on SeasonMap's comfort score. Chicago is nice, rainy, clean air; Portland is nice, rainy, clean air.
What is the weather like in Chicago vs Portland in October?: In October, Chicago averages 18°C high / 9°C low with about 117 mm of rain; Portland averages 18°C high / 9°C low with about 109 mm.