What is the weather like in Chicago vs Saint-Pierre in September?

In September, Chicago averages 25°C high / 17°C low with about 63 mm of rain; Saint-Pierre averages 18°C high / 12°C low with about 100 mm.

Chicago vs Saint-Pierre in September

Chicago is the better pick in September — 91 vs 72 on SeasonMap's comfort score. Chicago is warm, a little rain, clean air, while Saint-Pierre is cool, rainy, clean air.

Chicago vs Saint-Pierre — September climate, side by side

	Chicago	Saint-Pierre
Comfort score	91/100 (S)	72/100 (B)
Feels-like high	25°C	15°C
Avg high / low	25° / 17°	18° / 12°
Rainfall	63 mm	100 mm
Rainy days	7	11
Humidity	73%	83%
Air quality (AQI)	45	44

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

Chicago vs Saint-Pierre in September — FAQ

Is September better in Chicago or Saint-Pierre?: Chicago is the better pick in September — 91 vs 72 on SeasonMap's comfort score. Chicago is warm, a little rain, clean air, while Saint-Pierre is cool, rainy, clean air.
What is the weather like in Chicago vs Saint-Pierre in September?: In September, Chicago averages 25°C high / 17°C low with about 63 mm of rain; Saint-Pierre averages 18°C high / 12°C low with about 100 mm.