December in Moss is the windiest month of the year. In December, the weather in Moss is typically cold. Average daily high temperature in December is about 2 degrees above zero. On average, Moss has 10 rainy, 7 cloudy, 7 partly cloudy, 6 sunny, and 1 snowy day in December. The rains are usually moderate. December as well as January, February, March, and October is considered the most uncomfortable time to visit Moss.