April in Menomonie is the rainiest month of the year. In April, the weather in Menomonie is typically warm. Average daily high temperature in April is about 10 degrees above zero. On average, Menomonie has 15 rainy, 8 cloudy, 5 sunny, and 2 partly cloudy days in April. The rains are usually heavy. April as well as January, March, and November is considered the most uncomfortable time to visit Menomonie.