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Iowa United States of America
Precipitation in September
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September Rainfall Precipitation in Iowa

Iowa is a region in the United States of America. In September precipitation ranges from moderate in Sioux City with 70 mm of rainfall to high in Ames with 106 mm of rainfall.

Where and how much does it rain in Iowa in September?

Find the average total precipitation in September for the most popular destinations in Iowa on the map below. Click on a destination dot for more detailed information.

Weather conditions Weather
Temperatures
Precipitation
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Legend heavy rainfall high moderate low almost none
Heavy rainfall has been defined as more than 160 mm precipitation. High: 90 mm to 160 mm. Moderate: 30 mm to 90 mm. Low: 5 mm to 30 mm.

  • How much rainfall does Iowa receive in September?
    • Des Moines in September is characterized by an average rainfall of 86 mm, leading to a combination of both wet and sunny days.

  • What is the wettest city in September in Iowa?
    • Our data indicates that Ames holds the record for the most average rainfall with 106 mm.

  • What is the driest city in September in Iowa?
    • Our figures indicate that Sioux City receives the least rainfall, averaging just 70 mm.

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