Temperature for December
In Delta Junction, AK during December the average high temperature is 6.3°F. The hottest day on record was December 12, 1985 when the temperature recorded was 55.0°F.
Precipitation for December
In December the average monthly rainfall in Delta Junction, AK is 0.96 inches with rain usually falling on between 0 and 1 days. 1946 was the driest December with only 0.00 inches of rain falling, and 1974 was the wettest December with 47.75 inches of rain. The wettest single day in December was 24 December 1974 when 3.60 inches of rain fell.
In December it usually snows on between 11 and 12 days. In December there have been some years when thunderstorms have occurred, although there are other years when there hasn't been a thunderstorm in December.