April in Burlington is the windiest month of the year. In April, the weather in Burlington is typically warm. Average daily high temperature in April is about 10 degrees above zero. On average, Burlington has 13 rainy, 6 sunny, 6 partly cloudy, and 5 cloudy days in April. The rains are usually moderate. April as well as March, May, October, and November is considered the most uncomfortable time to visit Burlington.