December in Meridian is the snowiest month of the year. In December, the weather in Meridian is typically cold. Average daily high temperature in December is about 2 degrees above zero. On average, Meridian has 12 rainy, 9 sunny, 5 partly cloudy, 4 cloudy, and 1 snowy day in December. The rains are usually moderate. December as well as January, February, March, and November is considered the most uncomfortable time to visit Meridian.