January in Pemberton is the sunniest month of the year. In January, the weather in Pemberton is typically warm. Average daily high temperature in January is about 23 degrees above zero. On average, Pemberton has 22 sunny, 8 partly cloudy, and 1 rainy day in January. The rains are usually light. January as well as February, March, and December is considered the most comfortable time to visit Pemberton.