In the northern hemisphere, the official seasons are as follows: winter goes from the winter solstice (December 21) to March 19 (the day before the spring equinox on March 20), spring from March 20 until June 19 (the day before the summer solstice on June 20), summer from June 20 until September 21 (the day before the fall equinox on September 22), and [Read more…]