Adak Island, AK Climate in September

Temperature for September

In Adak Island, AK during September the average high temperature is 52.6°F. The hottest day on record was September 6, 1947 when the temperature recorded was 70.3°F.

Adak Island, AK daily average and extreme temperature range for September

Low Temperature

During September the overnight temperature drops to an average of 44.2°F, with the lowest temperature of 30.0°F being recorded on September 30, 1990. Overnight temperatures drop below freezing between 1 and 3 times in September.

Precipitation for September

In September the average monthly rainfall in Adak Island, AK is 1.81 inches with rain usually falling on between 20 and 21 days. 1965 was the driest September with only 0.00 inches of rain falling, and 1995 was the wettest September with 8.69 inches of rain. The wettest single day in September was 17 September 1987 when 5.00 inches of rain fell.

In September it usually snows on between 0 and 1 days. In September there have been some years when thunderstorms have occurred, although there are other years when there hasn't been a thunderstorm in September.