Freezing rain is a type of weather phenomenon where rain falls and then freezes upon contact with the ground or other surfaces when temperatures are below freezing. It forms a thin layer of ice, known as glaze, which can coat roads, trees, power lines, and other structures, causing hazardous conditions. Freezing rain often results in slippery roads, power outages, and damage to infrastructure. It is studied by meteorologists and climatologists to better understand its formation, impacts, and how to forecast and mitigate its effects.