November in Stephenville is the rainiest month of the year. In November, the weather in Stephenville is typically cold. Average daily high temperature in November is about 4 degrees above zero. On average, Stephenville has 22 rainy, 5 cloudy, 2 sunny, and 1 snowy day in November. The rains are usually heavy. November as well as April, May, and October is considered the most uncomfortable time to visit Stephenville.