December in North Salt Lake is the cloudiest month of the year. In December, the weather in North Salt Lake is typically cold. Average daily high temperature in December is about 2 degrees above zero. On average, North Salt Lake has 10 partly cloudy, 8 sunny, 7 cloudy, 3 rainy, and 3 snowy days in December. The rains are usually moderate. December as well as January, February, March, and April is considered the most uncomfortable time to visit North Salt Lake.