Average humidity in Sioux Falls (South Dakota)
The mean monthly relative humidity over the year in Sioux Falls (South Dakota), the United States of America.
- On average, December is the most humid month, at 75.0%.
- On average, May is the least humid month, at 63.6%.
- The average annual percentage of humidity is: 69%
Weather Forecasts for Sioux Falls (South Dakota)
clear and no rain
broken clouds and snow
broken clouds and no rain