January in Dawson is the snowiest, the cloudiest, and the most freezing month of the year. In January, the weather in Dawson is typically freezing. Average daily high temperature in January is about 10 degrees below zero. On average, Dawson has 22 cloudy and 9 snowy days in January. The snowfalls are usually light. January as well as February, March, April, and October is considered the most uncomfortable time to visit Dawson.