Average humidity in Des Moines (IA)
The mean monthly relative humidity over the year in Des Moines (Iowa), the United States of America.
- On average, January is the most humid month, at 72.0%.
- On average, May is the least humid month, at 60.0%.
- The average annual percentage of humidity is 67%.
Forecast for Des Moines (IA)
partly cloudy and no rain
clear and no rain
partly cloudy and chance of slight rain