Weather in Potomac in September
The weather in Potomac in September varies radically. Daytime is relatively hot since temperatures get higher than 27 degrees, while the nights are much colder and there are no more than 13 degrees. Therefore, it is recommended to pack for both warm and chilly conditions
Avg Temp
13° - 27°
Avg Rainy Days
14
Avg Dry Days
16
Avg Snow Days
0
Weather Facts - Potomac in September
* The warmest temperature recorded in in September is 37°C
* The coldest temperature recorded in Potomac in September is 1°C
* The average rainfall in Potomac in September is 113 mm