First Day Of Winter 2024 Usa. Winter solstice is the shortest day of year, longest night of the year and the official first day of winter in the northern hemisphere. The classification of freeze temperatures is based on.

Here’s a list of the exact dates and times of the four seasons in north america, including the first days of winter, spring, summer, and fall for the next few years. It marks the northern hemisphere’s shortest day (first day of winter) and southern hemisphere’s longest.