Average humidity in Grain Valley (MO)
The mean monthly relative humidity over the year in Grain Valley (Missouri), the United States of America.
- On average, December is the most humid month, at 70.0%.
- On average, April is the least humid month, at 62.0%.
- The average annual percentage of humidity is 67%.
Weather Forecasts for Grain Valley (MO)
overcast and thunder
clear and no rain
almost clear and no rain