In March, the weather in Hayward is typically cold. Average daily high temperature in March is about 1 degree above zero. On average, Hayward has 15 cloudy, 10 rainy, 3 sunny, 2 partly cloudy, and 1 snowy day in March. The rains are usually moderate. March as well as January, April, May, and October is considered the most uncomfortable time to visit Hayward.