January in Redding is the rainiest month of the year. In January, the weather in Redding is typically warm. Average daily high temperature in January is about 11 degrees above zero. On average, Redding has 14 rainy, 8 sunny, 6 cloudy, and 3 partly cloudy days in January. The rains are usually heavy. January as well as February, March, and December is considered the most uncomfortable time to visit Redding.