Frozen rain is a type of precipitation that occurs when rain droplets freeze in mid-air and then fall to the ground. It is composed of three different types of precipitation: SLEET (5 letters), HAIL (4 letters) and SNOW (4 letters). SLEET is a type of frozen rain that is composed of small ice pellets that form when rain droplets freeze as they pass through a layer of cold air. HAIL is a type of frozen rain that is composed of balls or irregular lumps of ice that form when rain droplets are lifted up and down by strong updrafts of air. SNOW is a type of frozen rain that is composed of soft, white flakes that form when water vapor freezes and accumulates in the atmosphere.