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

In September, Chicago averages 25°C high / 17°C low with about 63 mm of rain; Juneau averages 15°C high / 7°C low with about 321 mm.

Chicago vs Juneau in September

Chicago is the better pick in September — 91 vs 59 on SeasonMap's comfort score. Chicago is warm, a little rain, clean air, while Juneau is cool, soaked, clean air.

Chicago vs Juneau — September climate, side by side

	🇺🇸 Chicago	🇺🇸 Juneau
Comfort score	91/100 (S)	59/100 (D)
Feels-like high	25°C	14°C
Avg high / low	25° / 17°	15° / 7°
Rainfall	63 mm	321 mm
Rainy days	7	21
Humidity	73%	85%
Air quality (AQI)	45	27

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

Month by month

Chicago 🇺🇸 United Stateswarm, a little rain, clean air · best September91
Juneau 🇺🇸 United Statescool, soaked, clean air · best June59

Chicago vs Juneau in September — FAQ

Is September better in Chicago or Juneau?: Chicago is the better pick in September — 91 vs 59 on SeasonMap's comfort score. Chicago is warm, a little rain, clean air, while Juneau is cool, soaked, clean air.
What is the weather like in Chicago vs Juneau in September?: In September, Chicago averages 25°C high / 17°C low with about 63 mm of rain; Juneau averages 15°C high / 7°C low with about 321 mm.