Average humidity in Roscoe (IL)
The mean monthly relative humidity over the year in Roscoe (Illinois), the United States of America.
- On average, September is the most humid month, at 71.0%.
- On average, April is the least humid month, at 55.0%.
- The average annual percentage of humidity is 66%.
Forecast for Roscoe (IL)
partly cloudy and rain
partly cloudy and no rain
overcast and heavy sleet