December in Liaoyuan is the snowiest month of the year. In December, the weather in Liaoyuan is typically freezing. Average daily high temperature in December is about 9 degrees below zero. On average, Liaoyuan has 16 partly cloudy, 12 sunny, and 3 snowy days in December. The snowfalls are usually light. December as well as January and July is considered the most uncomfortable time to visit Liaoyuan.