February in Plymouth is the cloudiest and the coldest month of the year. In February, the weather in Plymouth is typically cold. Average daily high temperature in February is about 7 degrees above zero. On average, Plymouth has 13 rainy, 8 cloudy, 4 sunny, and 4 partly cloudy days in February. The rains are usually heavy. February as well as January, March, July, and October is considered the most uncomfortable time to visit Plymouth.