In December, the weather in Petropavlovsk is typically freezing. Average daily high temperature in December is about 8 degrees below zero. On average, Petropavlovsk has 10 snowy, 8 partly cloudy, 7 sunny, and 6 cloudy days in December. The snowfalls are usually heavy. December as well as January, February, April, and May is considered the most uncomfortable time to visit Petropavlovsk.