Corning Weather in September

What's the weather like in Corning (Iowa) in September 2025?

The climate in Corning during September can be summarized as mild and damp.

September is in the fall / autumn in Corning and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 24°C (76°F), whilst at night 11°C (52°F) is normal.

Corning weather averages (imperial / metric)
Daytime temperature 24.2°C 75.6°F
Nightly temperature 11.2°C 52.2°F
Average temperature 17.7°C 63.9°F
Daily sunshine 8.6 hrs
Avg rainfall 104 mm 4.1 ins
Rainy days 9 days
Sea temperature 19.5°C 67°F
Humidity 72%
Windspeed 15.5kph 10 mph

On average September is the 5th wettest month of the year in Corning with around 104mm 4.1 inches of rain making it a damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.6 hours of sunshine per day.

September temperatures in Corning

Corning average temperature in September

September rainfall

Corning average rain in September

September hourly sunshine

Corning average rain in September

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Corning in September 2025.

Other monthly averages

Best places to visit in September

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Corning weather stats

Corning weather statistics
Hottest month: July 30°C 86°F
Driest month: January 21mm 0.8ins
Sunniest month: July 11.5hrs
Coldest month: January -1.5°C 29.3°F
Wettest month: July 120mm 4.7ins
Map showing location of Corning (40.98999, -94.74081) Corning map pin © Google

Locations nearby

Top United States locations