Weather in Marshalltown in September
Marshalltown temperatures in September range from 10 to 25 and there is an average of 13 days of rain.
Avg Temp
10° - 25°
Avg Rainy Days
13
Avg Dry Days
17
Avg Snow Days
0
Weather Facts - Marshalltown in September
* The warmest temperature recorded in in September is 37°C
* The coldest temperature recorded in Marshalltown in September is (-3°C)
* The average rainfall in Marshalltown in September is 68 mm