December weather forecast in Washington

In December, the weather in Washington is typically cold. Average daily high temperature in December is about 6 degrees above zero. On average, Washington has 9 partly cloudy, 8 rainy, 7 cloudy, 6 sunny, and 1 snowy day in December. The rains are usually heavy. December as well as January, February, March, and November is considered the most uncomfortable time to visit Washington.