January weather forecast in McDonough

January in McDonough is the windiest and the coldest month of the year. In January, the weather in McDonough is typically warm. Average daily high temperature in January is about 10 degrees above zero. On average, McDonough has 14 sunny, 10 partly cloudy, 6 rainy, and 1 cloudy 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 McDonough.