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

In September, Chicago averages 25°C high / 17°C low with about 63 mm of rain; Columbus averages 27°C high / 14°C low with about 79 mm.

Chicago vs Columbus in September

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

Chicago vs Columbus — September climate, side by side

	🇺🇸 Chicago	🇺🇸 Columbus
Comfort score	91/100 (S)	89/100 (A)
Feels-like high	25°C	27°C
Avg high / low	25° / 17°	27° / 14°
Rainfall	63 mm	79 mm
Rainy days	7	6
Humidity	73%	69%
Air quality (AQI)	45	42

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

Month by month

Chicago vs Columbus in September — FAQ

Is September better in Chicago or Columbus?: Chicago and Columbus are nearly tied in September — 91 vs 89 on SeasonMap's comfort score. Chicago is warm, a little rain, clean air; Columbus is warm, a little rain, clean air.
What is the weather like in Chicago vs Columbus in September?: In September, Chicago averages 25°C high / 17°C low with about 63 mm of rain; Columbus averages 27°C high / 14°C low with about 79 mm.