...and more
In terms of precipitation, rainfall in Dutch Harbor ranges from 1.6 - 7.1 inches per month. October is typically the wettest month, when rainfall can reach 7.1 in. July is typically the driest time to visit Dutch Harbor when rainfall is around 1.6 in.
If weather is an important factor for your trip to Dutch Harbor, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 53.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).