January in Yum is the most freezing month of the year. In January, the weather in Yum is typically freezing. Average daily high temperature in January is about 13 degrees below zero. On average, Yum has 15 cloudy, 14 snowy, and 2 sunny days in January. The snowfalls are usually light. January as well as February, April, September, and October is considered the most uncomfortable time to visit Yum.