January in Novoangarsk is the most freezing month of the year. In January, the weather in Novoangarsk is typically freezing. Average daily high temperature in January is about 19 degrees below zero. On average, Novoangarsk has 20 cloudy, 8 snowy, and 3 sunny days in January. The snowfalls are usually light. January as well as February, April, May, and September is considered the most uncomfortable time to visit Novoangarsk.