| Snow is a particularly pretty form of
precipitation. Snow crystals, basically frozen water molecules,
are six-sided ice crystals that form when the air
temperature is below the freezing point for water: 32
degrees Fahrenheit, or zero degrees Celsius. A snowflake is a
bundle of several snow crystals. A snowstorm can
also include periods of sleet or freezing rain if the air
temperature varies. Snowstorm intensity can range from
flurries to blizzards. |