Winter 2024. The astronomical start of winter begins with the winter solstice on saturday, december 21, 2024. Early data shows that the polar vortex is likely to be weaker than normal in the winter of 2024/2025.

F all warmth will be widespread across much of the united states but a chillier pattern could arrive by december, according to an outlook released thursday by the weather. Learn all about the shortest day of.