While the earth remaineth, seedtime and harvest, and cold and heat, and summer and winter , and day and night shall not cease. A season is one of the four periods of the year. Winter begins in the Northern Hemisphere on December 21 or 22, when the North Pole has its greatest slant away from the sun. The moment at which the pole has this slant is known in the Northern Hemisphere as the winter solstice. On the first day of winter, the sun is low in the sky, and there are fewer minutes of daylight than on any other day.
Winter is the coldest season of the year.
The Northern Hemisphere, the northern half of the earth, has winter weather during December, January, February, and early March. In the Southern Hemisphere, winter weather begins in late June and lasts until early September. During winter, the polar region is especially cold because the sun does not rise there for weeks or months at a time. Cold, dry air moves south from this region, bringing cold weather. Storms move from west to east along the southern edge of the cold air.