January in Kansas City is the snowiest, the windiest, and the coldest month of the year. In January, the weather in Kansas City is typically cold. Average daily high temperature in January is about 2 degrees above zero. On average, Kansas City has 15 partly cloudy, 11 sunny, 2 rainy, 2 cloudy, and 1 snowy day in January. The rains are usually moderate. January as well as February, March, April, and December is considered the most uncomfortable time to visit Kansas City.