January in International Falls is the snowiest, the cloudiest, and the most freezing month of the year. In January, the weather in International Falls is typically freezing. Average daily high temperature in January is about 11 degrees below zero. On average, International Falls has 23 cloudy and 8 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 International Falls.