March in Parnassus is the windiest month of the year. In March, the weather in Parnassus is typically warm. Average daily high temperature in March is about 13 degrees above zero. On average, Parnassus has 11 rainy, 10 sunny, 8 partly cloudy, and 2 cloudy days in March. The rains are usually heavy. March as well as January, February, and December is considered the most uncomfortable time to visit Parnassus.