January in Brainerd is the snowiest, the cloudiest, and the most freezing month of the year. In January, the weather in Brainerd is typically freezing. Average daily high temperature in January is about 9 degrees below zero. On average, Brainerd has 25 cloudy, 5 snowy, and 1 sunny day in January. The snowfalls are usually light. January as well as March, April, October, and November is considered the most uncomfortable time to visit Brainerd.