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  4. September

Delta Junction, AK Climate in September

Temperature for September

In Delta Junction, AK during September the average high temperature is 54.1°F. The hottest day on record was September 2, 1963 when the temperature recorded was 79.0°F.

Delta Junction, AK daily average and extreme temperature range for September

Low Temperature

During September the overnight temperature drops to an average of 36.3°F, with the lowest temperature of 0.1°F being recorded on September 27, 1983. On average there are 2 days in September when the temperature stays below freezing all day. In the worst September there were 12 days when the temperature did not make it above freezing. Overnight temperatures drop below freezing between 3 and 24 times in September.

Precipitation for September

In September the average monthly rainfall in Delta Junction, AK is 0.72 inches with rain usually falling on between 8 and 9 days. 1947 was the driest September with only 0.00 inches of rain falling, and 1975 was the wettest September with 4.71 inches of rain. The wettest single day in September was 19 September 1975 when 2.05 inches of rain fell.

In September it usually snows on between 3 and 4 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.

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