March in Sandy is the rainiest and the windiest month of the year. In March, the weather in Sandy is typically cold. Average daily high temperature in March is about 7 degrees above zero. On average, Sandy has 14 rainy, 8 partly cloudy, 7 sunny, and 2 cloudy days in March. The rains are usually moderate. March as well as February and April is considered the most uncomfortable time to visit Sandy.