January in Lavonia is the coldest month of the year. In January, the weather in Lavonia is typically warm. Average daily high temperature in January is about 10 degrees above zero. On average, Lavonia has 14 sunny, 9 partly cloudy, 7 rainy, and 1 cloudy day in January. The rains are usually moderate. January as well as February and December is considered the most uncomfortable time to visit Lavonia.