February in Plainfield is the windiest month of the year. In February, the weather in Plainfield is typically cold. Average daily high temperature in February is about 3 degrees above zero. On average, Plainfield has 9 rainy, 9 partly cloudy, 7 sunny, 3 cloudy, and 1 snowy day in February. The rains are usually heavy. February as well as January, March, and December is considered the most uncomfortable time to visit Plainfield.