January in Jeonju is the snowiest and the coldest month of the year. In January, the weather in Jeonju is typically cold. Average daily high temperature in January is about 4 degrees above zero. On average, Jeonju has 14 partly cloudy, 9 sunny, 4 cloudy, 3 rainy, and 1 snowy day in January. The rains are usually light. January as well as February, July, August, and December is considered the most uncomfortable time to visit Jeonju.