Sigourney Weather in September

What's the weather like in Sigourney (Iowa) in September 2024?

The climate in Sigourney during September can be summarized as warm and a little damp.

September is in the fall / autumn in Sigourney and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 24°C (76°F), whilst at night 12°C (54°F) is normal.

Sigourney weather averages (imperial / metric)
Daytime temperature 24.3°C 75.7°F
Nightly temperature 12.1°C 53.8°F
Average temperature 18.2°C 64.8°F
Daily sunshine 8.3 hrs
Avg rainfall 97 mm 3.8 ins
Rainy days 9 days
Sea temperature 18.9°C 66.1°F
Humidity 73%
Windspeed 15.5kph 10 mph

On average September is the 5th wettest month of the year in Sigourney with around 97mm 3.8 inches of rain making it a a little 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 8.3 hours of sunshine per day.

September temperatures in Sigourney

Sigourney average temperature in September

September rainfall

Sigourney average rain in September

September hourly sunshine

Sigourney 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 Sigourney in September 2024.