In meteorology, precipitation is any product of the condensation of atmospheric water vapor that falls under gravitational pull from clouds.
The main forms of precipitation include drizzling, rain, sleet, snow, ice pellets, graupel and hail.
Two processes, possibly acting together, can lead to air becoming saturated: cooling the air or adding water vapor to the air.
Precipitation forms as smaller droplets coalesce via collision with other rain drops or ice crystals within a cloud.
Short, intense periods of rain in scattered locations are called showers.