January weather forecast in Plymouth

January in Plymouth is the snowiest, the windiest, the cloudiest, and the most freezing month of the year. In January, the weather in Plymouth is typically freezing. Average daily high temperature in January is about 2 degrees below zero. On average, Plymouth has 15 cloudy, 10 snowy, 4 rainy, and 2 sunny days in January. The snowfalls are usually moderate.