February in Carbondale is the snowiest and the cloudiest month of the year. In February, the weather in Carbondale is typically freezing. Average daily high temperature in February is about 1 degree below zero. On average, Carbondale has 11 snowy, 8 cloudy, 6 rainy, 3 sunny, and 1 partly cloudy day in February. The snowfalls are usually moderate. February as well as March, April, November, and December is considered the most uncomfortable time to visit Carbondale.