1st Day Of Winter 2025. Winter 2025 starts on sunday, 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. Online calendar of holidays and days off in united states for the winter of 2025.
Next winter will be on december 1, 2025. Find out the date when winter is in 2025 and count down the days until winter with a countdown timer.