December weather forecast in Greenville

In December, the weather in Greenville is typically warm. Average daily high temperature in December is about 14 degrees above zero. On average, Greenville has 10 rainy, 10 sunny, 7 partly cloudy, and 4 cloudy days in December. The rains are usually heavy. December as well as January, February, June, and July is considered the most uncomfortable time to visit Greenville.