Beginning Of Winter 2024 In. Here are the equinox and solstice dates—plus, answers to common questions about the seasons of the year in north america. To find out why the seasons occur, visit this page:
This year the winter solstice in the northern hemisphere is on 21 december and therefore our astronomical winter begins on that date. The season change dates are based on the spring and fall equinoxes as well as the summer and winter solstices.