Precipitation

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Precipitation is any form of water from the atmosphere. It is a term in meteorology, and includes rain, snow, sleet, dew, frost, and hail. These form from atmospheric water vapour, and fall under gravity.

Fog and mist are not precipitation but suspensions. In that case, the water vapour does not condense sufficiently to precipitate.

If liquid, precipitation can be measured using a rain gauge. The most common form of solid precipitation is snow. Snow is made when temperatures are so cold that water vapor changes directly to solid crystals.