March in Shenandoah is the windiest month of the year. In March, the weather in Shenandoah is typically cold. Average daily high temperature in March is about 6 degrees above zero. On average, Shenandoah has 9 rainy, 8 cloudy, 7 sunny, and 7 partly cloudy days in March. The rains are usually heavy. March as well as February, April, May, and December is considered the most uncomfortable time to visit Shenandoah.