What is the weather like in Detroit vs Indianapolis in September?

In September, Detroit averages 25°C high / 16°C low with about 88 mm of rain; Indianapolis averages 27°C high / 16°C low with about 64 mm.

Detroit vs Indianapolis in September

Detroit and Indianapolis are nearly tied in September — 90 vs 89 on SeasonMap's comfort score. Detroit is warm, rainy, clean air; Indianapolis is warm, a little rain, clean air.

Detroit vs Indianapolis — September climate, side by side

	🇺🇸 Detroit	🇺🇸 Indianapolis
Comfort score	90/100 (S)	89/100 (A)
Feels-like high	24°C	28°C
Avg high / low	25° / 16°	27° / 16°
Rainfall	88 mm	64 mm
Rainy days	6	5
Humidity	73%	68%
Air quality (AQI)	45	42

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

Month by month

Detroit vs Indianapolis in September — FAQ

Is September better in Detroit or Indianapolis?: Detroit and Indianapolis are nearly tied in September — 90 vs 89 on SeasonMap's comfort score. Detroit is warm, rainy, clean air; Indianapolis is warm, a little rain, clean air.
What is the weather like in Detroit vs Indianapolis in September?: In September, Detroit averages 25°C high / 16°C low with about 88 mm of rain; Indianapolis averages 27°C high / 16°C low with about 64 mm.