Temperature for December
In Barter Island, AK during December the average high temperature is -4.0°F. The hottest day on record was December 31, 1973 when the temperature recorded was 37.4°F.
Precipitation for December
In December the average monthly rainfall in Barter Island, AK is 0.13 inches with rain usually falling on between 0 and 1 days. 2012 was the driest December with only 0.00 inches of rain falling, and 1975 was the wettest December with 2.49 inches of rain. The wettest single day in December was 31 December 1975 when 0.79 inches of rain fell.
In December it usually snows on between 13 and 14 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.