December in Angarsk is the snowiest month of the year. In December, the weather in Angarsk is typically freezing. Average daily high temperature in December is about 14 degrees below zero. On average, Angarsk has 11 partly cloudy, 8 cloudy, 7 sunny, and 5 snowy days in December. The snowfalls are usually light. December as well as January and February is considered the most uncomfortable time to visit Angarsk.