April in Montpelier is the windiest month of the year. In April, the weather in Montpelier is typically cold. Average daily high temperature in April is about 8 degrees above zero. On average, Montpelier has 19 rainy, 5 sunny, 4 partly cloudy, and 2 cloudy days in April. The rains are usually heavy. April as well as March, May, June, and October is considered the most uncomfortable time to visit Montpelier.