Mason City Weather in September

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

The climate in Mason City during September can be summarized as mild and a little damp.

September is in the fall / autumn in Mason City and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 23°C (73°F), whilst at night 10°C (50°F) is normal.

Mason City weather averages (imperial / metric)
Daytime temperature 22.7°C 72.9°F
Nightly temperature 9.7°C 49.5°F
Average temperature 16.2°C 61.2°F
Daily sunshine 8.3 hrs
Avg rainfall 85 mm 3.4 ins
Rainy days 10 days
Sea temperature 17.5°C 63.5°F
Humidity 73%
Windspeed 17.3kph 11 mph

On average September is the 5th wettest month of the year in Mason City with around 85mm 3.4 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 10 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 Mason City

Mason City average temperature in September

September rainfall

Mason City average rain in September

September hourly sunshine

Mason City 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 Mason City in September 2024.

Other monthly averages

Best places to visit in September

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Mason City weather stats

Mason City weather statistics
Hottest month: July 28.5°C 83.3°F
Driest month: January 21mm 0.8ins
Sunniest month: July 11.3hrs
Coldest month: January -5.3°C 22.5°F
Wettest month: June 119mm 4.7ins
Map showing location of Mason City (43.15357, -93.20104) Mason City map pin © Google

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