April in Dixon is the windiest month of the year. In April, the weather in Dixon is typically warm. Average daily high temperature in April is about 15 degrees above zero. On average, Dixon has 11 rainy, 9 sunny, 8 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 Dixon.