January in Desoto is the coldest month of the year. In January, the weather in Desoto is typically warm. Average daily high temperature in January is about 12 degrees above zero. On average, Desoto has 18 sunny, 9 partly cloudy, 3 rainy, and 1 cloudy day in January. The rains are usually light. January as well as July, August, and December is considered the most uncomfortable time to visit Desoto.