January in Moose Jaw is the windiest month of the year. In January, the weather in Moose Jaw is typically freezing. Average daily high temperature in January is about 7 degrees below zero. On average, Moose Jaw has 20 cloudy, 4 sunny, 4 partly cloudy, and 3 snowy days in January. The snowfalls are usually light. January as well as February, March, April, and June is considered the most uncomfortable time to visit Moose Jaw.