December weather forecast in Twin Falls

December in Twin Falls is the snowiest month of the year. In December, the weather in Twin Falls is typically cold. Average daily high temperature in December is about 1 degree above zero. On average, Twin Falls has 12 partly cloudy, 9 sunny, 6 rainy, 3 cloudy, and 1 snowy day in December. The rains are usually light. December as well as January, February, and March is considered the most uncomfortable time to visit Twin Falls.