Why Does it Rain or Snow?

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“Why does it rain or snow?”
Alexis Waites
Hillside Elementary School

When clouds have enough moisture they can produce precipitation and because the upper levels of the atmosphere where clouds form are so cold, the precipitation falls as snow. If there is a warm layer below the initial cold layer, like in the Spring and Summer, the snow melts and falls to the ground as rain. If there is a cold layer at the surface the rain can partially refreeze and we experience sleet. If the warm layer reaches a freezing surface than the rain refreezes on impact and that’s called freezing rain.