April weather forecast in Haverhill

April in Haverhill is the sunniest month of the year. In April, the weather in Haverhill is typically warm. Average daily high temperature in April is about 13 degrees above zero. On average, Haverhill has 12 rainy, 9 partly cloudy, 6 sunny, and 3 cloudy days in April. The rains are usually moderate. April as well as January, February, March, and October is considered the most uncomfortable time to visit Haverhill.