January in Yumas is the most freezing month of the year. In January, the weather in Yumas is typically freezing. Average daily high temperature in January is about 16 degrees below zero. On average, Yumas has 27 cloudy, 3 snowy, and 1 sunny day in January. The snowfalls are usually light. January as well as February, April, September, and October is considered the most uncomfortable time to visit Yumas.