October in Concord is the sunniest month of the year. In October, the weather in Concord is typically warm. Average daily high temperature in October is about 14 degrees above zero. On average, Concord has 12 sunny, 10 rainy, 7 partly cloudy, and 2 cloudy days in October. The rains are usually heavy. October as well as January, February, March, and April is considered the most uncomfortable time to visit Concord.