December weather forecast in Mammoth Lakes

December in Mammoth Lakes is the coldest month of the year. In December, the weather in Mammoth Lakes is typically freezing. Average daily high temperature in December is about zero. On average, Mammoth Lakes has 13 partly cloudy, 10 sunny, 3 rainy, 3 cloudy, and 2 snowy days in December. The rains are usually light. December as well as January, February, March, and April is considered the most uncomfortable time to visit Mammoth Lakes.