March weather forecast in Cary

March in Cary is the rainiest month of the year. In March, the weather in Cary is typically warm. Average daily high temperature in March is about 15 degrees above zero. On average, Cary has 11 sunny, 10 rainy, and 10 partly cloudy days in March. The rains are usually moderate. March as well as January, February, and December is considered the most uncomfortable time to visit Cary.