January in Little Rock is the coldest month of the year. In January, the weather in Little Rock is typically cold. Average daily high temperature in January is about 8 degrees above zero. On average, Little Rock has 15 sunny, 8 partly cloudy, 5 rainy, and 3 cloudy days in January. The rains are usually moderate. January as well as February, August, and December is considered the most uncomfortable time to visit Little Rock.