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

In October, Chicago averages 18°C high / 9°C low with about 117 mm of rain; Pittsburgh averages 20°C high / 8°C low with about 87 mm.

Chicago vs Pittsburgh in October

Pittsburgh is the better pick in October — 78 vs 73 on SeasonMap's comfort score. Pittsburgh is nice, rainy, clean air, while Chicago is nice, rainy, clean air.

Chicago vs Pittsburgh — October climate, side by side

	Chicago	Pittsburgh
Comfort score	73/100 (B)	78/100 (B)
Feels-like high	16°C	18°C
Avg high / low	18° / 9°	20° / 8°
Rainfall	117 mm	87 mm
Rainy days	10	10
Humidity	70%	74%
Air quality (AQI)	35	35

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

Chicago vs Pittsburgh in October — FAQ

Is October better in Chicago or Pittsburgh?: Pittsburgh is the better pick in October — 78 vs 73 on SeasonMap's comfort score. Pittsburgh is nice, rainy, clean air, while Chicago is nice, rainy, clean air.
What is the weather like in Chicago vs Pittsburgh in October?: In October, Chicago averages 18°C high / 9°C low with about 117 mm of rain; Pittsburgh averages 20°C high / 8°C low with about 87 mm.