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When Is Winter?

  • December 21, 2014
  • By KIDS DISCOVER

The winter solstice begins today … but winter started three weeks ago. The solstice is the start of astronomical winter, which is determined by Earth’s position relative to the sun. Meteorological winter, based on the annual temperature cycle, begins on December 1 and ends March 1. (Ratikova / Shutterstock)

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