Temperature for August
In Adak Island, AK during August the average high temperature is 56.2°F. The hottest day on record was August 9, 1956 when the temperature recorded was 75.4°F.
Precipitation for August
In August the average monthly rainfall in Adak Island, AK is 1.41 inches with rain usually falling on between 21 and 22 days. 1957 was the driest August with only 0.00 inches of rain falling, and 1993 was the wettest August with 7.42 inches of rain. The wettest single day in August was 5 August 1991 when 2.32 inches of rain fell.
In August it usually snows on between 0 and 1 days. In August there have been some years when thunderstorms have occurred, although there are other years when there hasn't been a thunderstorm in August.