What form of precipitation might be falling if the temperature is below 0?

If the temperature is below 0 degrees Celsius, the form of precipitation could include snow, sleet, or freezing rain. Snow occurs when water vapor in the atmosphere crystallizes into ice crystals. Sleet consists of small ice pellets that form when raindrops freeze before reaching the ground. Freezing rain occurs when liquid rain falls and freezes upon contact with surfaces, creating a layer of ice.