Average humidity in Palatine (IL)
The mean monthly relative humidity over the year in Palatine (Illinois), the United States of America.
- On average, December is the most humid month, at 76.0%.
- On average, May is the least humid month, at 64.0%.
- The average annual percentage of humidity is 70%.
Forecast for Palatine (IL)
broken clouds and small chance of slight rain
broken clouds and no rain
overcast and no rain