April in Newark is the windiest month of the year. In April, the weather in Newark is typically warm. Average daily high temperature in April is about 17 degrees above zero. On average, Newark has 14 rainy, 8 sunny, 6 partly cloudy, and 2 cloudy days in April. The rains are usually heavy. April as well as January, February, March, and November is considered the most uncomfortable time to visit Newark.