January in Edinburg is the coldest month of the year. In January, the weather in Edinburg is typically cold. Average daily high temperature in January is about 2 degrees above zero. On average, Edinburg has 11 partly cloudy, 9 sunny, 7 rainy, and 4 cloudy days in January. The rains are usually light. January as well as February, March, April, and December is considered the most uncomfortable time to visit Edinburg.