January in West Plains is the coldest month of the year. In January, the weather in West Plains is typically cold. Average daily high temperature in January is about 4 degrees above zero. On average, West Plains has 13 sunny, 11 partly cloudy, 6 rainy, and 1 cloudy day in January. The rains are usually moderate. January as well as February, March, and December is considered the most uncomfortable time to visit West Plains.