The change of seasons recorded in our calendars do not seem like a real reflection of what is happening in the natural world. Sure the seasons are based on the solstices and equinoxes, but this is way off.
A more realistic calendar would be made of rubber so it could stretch a bit this way and that. It would mark the end of the year as the first frost. This is when the whole insect and plant ecosystem do an abrupt, sudden about face. Spring would begin when the first wood frogs sing (mid March). Fall would start with the monarch migration and summer would be marked by…well there are too many choices there. FGT