In February, the weather in Mammoth Lakes is typically cold. Average daily high temperature in February is about 2 degrees above zero. On average, Mammoth Lakes has 14 sunny, 6 snowy, 6 partly cloudy, 2 cloudy, and 1 rainy day in February. The snowfalls are usually heavy. February as well as January, March, April, and November is considered the most uncomfortable time to visit Mammoth Lakes.