Winter is one of the four seasons. It begins on the Winter Solstice and ends on the Vernal Equinox. Winter is the season with the shortest days and the lowest temperatures. Ice and snow are associated with Winter in many places on the earth.
When it is Winter in the Southern Hemisphere it is Summer in the Northern Hemisphere. This occurs because the Southern Hemisphere is tilted away from the sun and the Northern Hemisphere faces the sun more directly because of the way the earth is tilting toward the sun.
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