January in Charlotte is the coldest month of the year. In January, the weather in Charlotte is typically warm. Average daily high temperature in January is about 11 degrees above zero. On average, Charlotte has 12 sunny, 8 rainy, 8 partly cloudy, and 3 cloudy days in January. The rains are usually heavy. January as well as February, June, July, and August is considered the most uncomfortable time to visit Charlotte.