Storm Lake Weather in September

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

The climate in Storm Lake during September can be summarized as mild and a little damp.

September is in the fall / autumn in Storm Lake and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 23°C (73°F), whilst at night 9°C (48°F) is normal.

Storm Lake weather averages (imperial / metric)
Daytime temperature 23°C 73.3°F
Nightly temperature 9.1°C 48.3°F
Average temperature 16°C 60.8°F
Daily sunshine 8.5 hrs
Avg rainfall 89 mm 3.5 ins
Rainy days 9 days
Sea temperature 18°C 64.4°F
Humidity 72%
Windspeed 16.6kph 10 mph

On average September is the 5th wettest month of the year in Storm Lake with around 89mm 3.5 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 8.5 hours of sunshine per day.

September temperatures in Storm Lake

Storm Lake average temperature in September

September rainfall

Storm Lake average rain in September

September hourly sunshine

Storm Lake 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 Storm Lake 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

Storm Lake weather stats

Storm Lake weather statistics
Hottest month: July 28.8°C 83.8°F
Driest month: January 15mm 0.6ins
Sunniest month: July 11.5hrs
Coldest month: January -4.3°C 24.3°F
Wettest month: June 119mm 4.7ins
Map showing location of Storm Lake (42.64109, -95.20972) Storm Lake map pin © Google

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