January in Richland is the snowiest month of the year. In January, the weather in Richland is typically cold. Average daily high temperature in January is about 4 degrees above zero. On average, Richland has 11 cloudy, 7 partly cloudy, 6 sunny, 5 rainy, and 2 snowy days in January. The rains are usually light. January as well as February, November, and December is considered the most uncomfortable time to visit Richland.