In March, the weather in Hayward is typically cold. Average daily high temperature in March is about 3 degrees above zero. On average, Hayward has 12 partly cloudy, 7 cloudy, 6 sunny, 3 rainy, and 3 snowy days in March. The rains are usually moderate. March as well as April, May, October, and November is considered the most uncomfortable time to visit Hayward.