January weather forecast in Sierra Nevada

January in Sierra Nevada is the coldest month of the year. In January, the weather in Sierra Nevada is typically warm. Average daily high temperature in January is about 10 degrees above zero. On average, Sierra Nevada has 13 sunny, 8 rainy, 7 partly cloudy, and 3 cloudy days in January. The rains are usually moderate. January as well as February, March, April, and November is considered the most uncomfortable time to visit Sierra Nevada.