Average humidity in Ketchikan (AK)
The mean monthly relative humidity over the year in Ketchikan (Alaska), the United States of America.
- On average, September is the most humid month, at 82.0%.
- On average, March is the least humid month, at 75.0%.
- The average annual percentage of humidity is 78%.
Forecast for Ketchikan (AK)
partly cloudy and chance of rain
overcast and heavy rain
broken clouds and rain