Average humidity in Exton (PA)
The mean monthly relative humidity over the year in Exton (Pennsylvania), the United States of America.
- On average, September is the most humid month, at 71.5%.
- On average, April is the least humid month, at 61.0%.
- The average annual percentage of humidity is 67%.
Forecast for Exton (PA)
broken clouds and slight rain
overcast and slight rain
clear and chance of slight rain