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

In September, Chicago averages 25°C high / 17°C low with about 63 mm of rain; Dallas averages 33°C high / 22°C low with about 77 mm.

Chicago vs Dallas in September

Chicago is the better pick in September — 91 vs 71 on SeasonMap's comfort score. Chicago is warm, a little rain, clean air, while Dallas is sweltering, a little rain.

Chicago vs Dallas — September climate, side by side

	Chicago	Dallas
Comfort score	91/100 (S)	71/100 (B)
Feels-like high	25°C	35°C
Avg high / low	25° / 17°	33° / 22°
Rainfall	63 mm	77 mm
Rainy days	7	5
Humidity	73%	63%
Air quality (AQI)	45	51

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

Chicago vs Dallas in September — FAQ

Is September better in Chicago or Dallas?: Chicago is the better pick in September — 91 vs 71 on SeasonMap's comfort score. Chicago is warm, a little rain, clean air, while Dallas is sweltering, a little rain.
What is the weather like in Chicago vs Dallas in September?: In September, Chicago averages 25°C high / 17°C low with about 63 mm of rain; Dallas averages 33°C high / 22°C low with about 77 mm.