What is the weather like in Cincinnati vs Mammoth Cave National Park in September?

In September, Cincinnati averages 27°C high / 14°C low with about 65 mm of rain; Mammoth Cave National Park averages 30°C high / 16°C low with about 107 mm.

Cincinnati vs Mammoth Cave National Park in September

Cincinnati is the better pick in September — 89 vs 75 on SeasonMap's comfort score. Cincinnati is warm, a little rain, clean air, while Mammoth Cave National Park is hot, rainy, clean air.

Cincinnati vs Mammoth Cave National Park — September climate, side by side

	🇺🇸 Cincinnati	🇺🇸 Mammoth Cave National Park
Comfort score	89/100 (A)	75/100 (B)
Feels-like high	28°C	32°C
Avg high / low	27° / 14°	30° / 16°
Rainfall	65 mm	107 mm
Rainy days	6	6
Humidity	69%	69%
Air quality (AQI)	46	42

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

Month by month

Cincinnati vs Mammoth Cave National Park in September — FAQ

Is September better in Cincinnati or Mammoth Cave National Park?: Cincinnati is the better pick in September — 89 vs 75 on SeasonMap's comfort score. Cincinnati is warm, a little rain, clean air, while Mammoth Cave National Park is hot, rainy, clean air.
What is the weather like in Cincinnati vs Mammoth Cave National Park in September?: In September, Cincinnati averages 27°C high / 14°C low with about 65 mm of rain; Mammoth Cave National Park averages 30°C high / 16°C low with about 107 mm.