January in Salt Lake City is the snowiest and the coldest month of the year. In January, the weather in Salt Lake City is typically cold. Average daily high temperature in January is about 1 degree above zero. On average, Salt Lake City has 11 partly cloudy, 9 sunny, 5 cloudy, 3 rainy, and 3 snowy 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 Salt Lake City.