The number of weeks in winter varies depending on the hemisphere and the specific definition of winter. Here are the details:
Northern Hemisphere
Winter in the Northern Hemisphere typically begins on the winter solstice (December 21 or 22) and ends on the vernal equinox (March 20 or 21). This period is approximately 13 weeks.
Southern Hemisphere
Winter in the Southern Hemisphere typically begins on the winter solstice (June 20 or 21) and ends on the vernal equinox (September 22 or 23). This period is also approximately 13 weeks.
Keep in mind that these dates can vary slightly from year to year due to the Earth’s elliptical orbit and the tilt of its axis.
