December in Everett is the coldest month of the year. In December, the weather in Everett is typically cold. Average daily high temperature in December is about 6 degrees above zero. On average, Everett has 17 rainy, 6 cloudy, 5 sunny, and 3 partly cloudy days in December. The rains are usually heavy. December as well as January, February, March, and April is considered the most uncomfortable time to visit Everett.