Unalaska, AK has a maritime climate that is moderated by the surrounding seas. Summers are cool and winters are mild with average temperatures rarely dropping below freezing. Precipitation in the form of rain and snow is fairly consistent throughout the year, with an average annual total of nearly 40 inches. The weather can be unpredictable and change frequently, so it is wise to come prepared for any type of weather as conditions can shift quickly.
Unalaska, Alaska gets 62 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Unalaska averages 95 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 74 sunny days per year in Unalaska. The US average is 205 sunny days.
Unalaska gets some kind of precipitation, on average, 225 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Weather Highlights
Summer High: the July high is around 57 degrees
Winter Low: the January low is 28
Rain: averages 62 inches of rain a year
Snow: averages 95 inches of snow a year