April in Dixon is the rainiest and the windiest month of the year. In April, the weather in Dixon is typically warm. Average daily high temperature in April is about 14 degrees above zero. On average, Dixon has 16 rainy, 7 sunny, 5 partly cloudy, and 2 cloudy days in April. The rains are usually heavy. April as well as March, November, and December is considered the most uncomfortable time to visit Dixon.