Winter Day 2024 Date. The shortest day can occur on december 20, 21, 22, or 23. The first groundhog day was celebrated on feb.
22 (only a few days before christmas) in the northern hemisphere, and on june 20 or june 21 in the southern hemisphere. 21, 2024 and the next winter solstice for the southern hemisphere will occur on june 20, 2024.