January in Clermont-Ferrand is the coldest month of the year. In January, the weather in Clermont-Ferrand is typically cold. Average daily high temperature in January is about 4 degrees above zero. On average, Clermont-Ferrand has 12 cloudy, 11 rainy, 5 sunny, and 3 partly cloudy days in January. The rains are usually moderate. January as well as February, April, May, and November is considered the most uncomfortable time to visit Clermont-Ferrand.