December in Aberdeen is the cloudiest month of the year. In December, the weather in Aberdeen is typically cold. Average daily high temperature in December is about 6 degrees above zero. On average, Aberdeen has 10 partly cloudy, 8 sunny, 7 rainy, 5 cloudy, and 1 snowy day in December. The rains are usually heavy. December as well as January, February, March, and July is considered the most uncomfortable time to visit Aberdeen.