December in Fairbanks is the snowiest month of the year. In December, the weather in Fairbanks is typically freezing. Average daily high temperature in December is about 14 degrees below zero. On average, Fairbanks has 10 partly cloudy, 9 sunny, 6 snowy, and 6 cloudy days in December. The snowfalls are usually light. December as well as January, February, and November is considered the most uncomfortable time to visit Fairbanks.