January weather forecast in Stephenville

January in Stephenville is the coldest month of the year. In January, the weather in Stephenville is typically warm. Average daily high temperature in January is about 12 degrees above zero. On average, Stephenville has 19 sunny, 10 partly cloudy, and 2 rainy days in January. The rains are usually heavy. January as well as June, July, August, and September is considered the most uncomfortable time to visit Stephenville.