Weather in Sioux Falls in September
Sioux Falls temperatures in September range from 10 to 25 and there is an average of 12 days of rain.
Avg Temp
10° - 25°
Avg Rainy Days
12
Avg Dry Days
18
Avg Snow Days
0
Weather Facts - Sioux Falls in September
* The warmest temperature recorded in in September is 37°C
* The coldest temperature recorded in Sioux Falls in September is (-3°C)
* The average rainfall in Sioux Falls in September is 66 mm