What is the weather like in Chicago vs Cincinnati in September?

In September, Chicago averages 25°C high / 17°C low with about 63 mm of rain; Cincinnati averages 27°C high / 14°C low with about 65 mm.

Chicago vs Cincinnati in September

Chicago and Cincinnati are nearly tied in September — 91 vs 89 on SeasonMap's comfort score. Chicago is warm, a little rain, clean air; Cincinnati is warm, a little rain, clean air.

Chicago vs Cincinnati — September climate, side by side

	🇺🇸 Chicago	🇺🇸 Cincinnati
Comfort score	91/100 (S)	89/100 (A)
Feels-like high	25°C	28°C
Avg high / low	25° / 17°	27° / 14°
Rainfall	63 mm	65 mm
Rainy days	7	6
Humidity	73%	69%
Air quality (AQI)	45	46

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

Month by month

Chicago vs Cincinnati in September — FAQ

Is September better in Chicago or Cincinnati?: Chicago and Cincinnati are nearly tied in September — 91 vs 89 on SeasonMap's comfort score. Chicago is warm, a little rain, clean air; Cincinnati is warm, a little rain, clean air.
What is the weather like in Chicago vs Cincinnati in September?: In September, Chicago averages 25°C high / 17°C low with about 63 mm of rain; Cincinnati averages 27°C high / 14°C low with about 65 mm.