Winter Solstice 2024 Northern Hemisphere Weather. In the northern hemisphere this date falls in december every year. The first day of winter is marked by the winter solstice, which occurs when the earth’s axis tilts farthest from the sun.
Winter solstice, the two moments during the year when the path of the sun in the sky is farthest south in the northern hemisphere (december 21 or 22) and farthest north in the southern. On the winter solstice, the tilt brings the northern hemisphere to its farthest point away from the sun, according to the smithsonian science education center.