Average humidity in Duluth (MN)
The mean monthly relative humidity over the year in Duluth (Minnesota), the United States of America.
- On average, September is the most humid month, at 76.0%.
- On average, May is the least humid month, at 63.0%.
- The average annual percentage of humidity is 71%.
Forecast for Duluth (MN)
almost clear and no rain
overcast and heavy rain
broken clouds and rain