Weather in Norristown in September
Norristown temperatures in September range from 16 to 27 and there is an average of 13 days of rain.
Avg Temp
16° - 27°
Avg Rainy Days
13
Avg Dry Days
17
Avg Snow Days
0
Weather Facts - Norristown in September
* The warmest temperature recorded in in September is 35°C
* The coldest temperature recorded in Norristown in September is 5°C
* The average rainfall in Norristown in September is 109 mm