May weather forecast in Concord

May in Concord is the rainiest month of the year. In May, the weather in Concord is typically warm. Average daily high temperature in May is about 19 degrees above zero. On average, Concord has 13 rainy, 8 sunny, 5 cloudy, and 5 partly cloudy days in May. The rains are usually heavy. May as well as January, February, March, and April is considered the most uncomfortable time to visit Concord.