In April, the weather in Crested Butte is typically cold. Average daily high temperature in April is about 1 degree above zero. On average, Crested Butte has 17 rainy, 7 snowy, 4 sunny, and 2 cloudy days in April. The rains are usually heavy. April as well as May, July, August, and September is considered the most uncomfortable time to visit Crested Butte.