April in Roswell is the windiest and the sunniest month of the year. In April, the weather in Roswell is typically warm. Average daily high temperature in April is about 25 degrees above zero. On average, Roswell has 23 sunny, 3 rainy, 3 partly cloudy, and 1 cloudy day in April. The rains are usually light. April as well as March and October is considered the most comfortable time to visit Roswell.