April in Newark is the rainiest and the cloudiest month of the year. In April, the weather in Newark is typically warm. Average daily high temperature in April is about 16 degrees above zero. On average, Newark has 12 rainy, 9 sunny, 5 partly cloudy, and 4 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.