January in Clovis is the snowiest month of the year. In January, the weather in Clovis is typically warm. Average daily high temperature in January is about 11 degrees above zero. On average, Clovis has 17 sunny, 9 partly cloudy, 3 cloudy, 1 rainy, and 1 snowy day in January. The rains are usually moderate. January as well as June, July, August, and December is considered the most uncomfortable time to visit Clovis.