April in Darlington is the sunniest month of the year. In April, the weather in Darlington is typically warm. Average daily high temperature in April is about 10 degrees above zero. On average, Darlington has 13 rainy, 7 partly cloudy, 6 cloudy, and 4 sunny days in April. The rains are usually moderate. April as well as January, February, March, and May is considered the most uncomfortable time to visit Darlington.