December in Liverpool is the windiest month of the year. In December, the weather in Liverpool is typically cold. Average daily high temperature in December is about 2 degrees above zero. On average, Liverpool has 10 partly cloudy, 8 cloudy, 7 rainy, 4 sunny, and 2 snowy 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 Liverpool.