January weather forecast in Addison

January in Addison is the coldest month of the year. In January, the weather in Addison is typically warm. Average daily high temperature in January is about 14 degrees above zero. On average, Addison has 17 sunny, 6 rainy, 6 partly cloudy, and 2 cloudy days in January. The rains are usually moderate. January as well as February, May, June, and July is considered the most uncomfortable time to visit Addison.