December in Liaoyang is the sunniest month of the year. In December, the weather in Liaoyang is typically freezing. Average daily high temperature in December is about 1 degree below zero. On average, Liaoyang has 24 sunny, 5 partly cloudy, and 2 snowy days in December. The snowfalls are usually light. December as well as February, March, June, and July is considered the most uncomfortable time to visit Liaoyang.