First Day Of Spring 2024 Facts. You may have heard that the spring equinox is the official first day of spring, and it's true that this auspicious event traditionally marked the start of spring for many different. But why does the day mark the start of spring and why only in the northern hemisphere?.

The 2024 winter solstice, the shortest day of the year, happens on saturday, dec. When is the first day of spring in 2025?