In February, the weather in Hailey is typically freezing. Average daily high temperature in February is about 1 degree below zero. On average, Hailey has 8 snowy, 8 sunny, 8 partly cloudy, and 5 cloudy days in February. The snowfalls are usually moderate. February as well as March, April, May, and October is considered the most uncomfortable time to visit Hailey.