Winter 2024 Start Date Usa. 21, marking the official beginning of winter and ushering in the season’s characteristic cold fronts and holiday traditions. Winter 2024 starts on saturday, december 21st in the northern hemisphere, with the first day of winter being the shortest daylight day of the year with the earth's axis having reached its furthest tilt away from the sun and begins to change directiion back.
December 16, 2024, 1:43 pm. Here’s what you need to know about the start—and end—of winter 2024: