December in White River is the snowiest month of the year. In December, the weather in White River is typically freezing. Average daily high temperature in December is about 8 degrees below zero. On average, White River has 22 snowy, 8 cloudy, and 1 sunny day in December. The snowfalls are usually moderate. December as well as January, February, April, and May is considered the most uncomfortable time to visit White River.