January in Barnaul is the most freezing month of the year. In January, the weather in Barnaul is typically freezing. Average daily high temperature in January is about 14 degrees below zero. On average, Barnaul has 18 cloudy, 7 snowy, 4 sunny, and 2 partly cloudy days in January. The snowfalls are usually light. January as well as February, April, October, and December is considered the most uncomfortable time to visit Barnaul.