January weather forecast in South Plainfield

January in South Plainfield is the snowiest and the coldest month of the year. In January, the weather in South Plainfield is typically cold. Average daily high temperature in January is about 3 degrees above zero. On average, South Plainfield has 11 sunny, 7 partly cloudy, 6 cloudy, 5 rainy, and 2 snowy days in January. The rains are usually heavy. January as well as February, March, April, and November is considered the most uncomfortable time to visit South Plainfield.