It's kind of funny that pop astrology has convinced a not-insubstantial number of people that the whole US has four seasons of precisely equal length
European colonists in what's now the US - and the idea persisted at least until the 1980s, to be clear - called the end of August "Indian Summer", because they expected autumn to start in mid-August and thought of the summer solstice as Midsummer, and it was weird to them that in mid-latitude eastern North America it stayed warm and the deciduous trees didn't start dropping their leaves until mid-September.
In fact, much of the US doesn't have four seasons, not to mention most of the world. Southwestern states tend to have Hot and Somewhat Less Hot, southeastern states have Dry and Rainy, etc. And they're real seasons! Can you have a Fall if you're in a desert and the supermajority of the plant life is succulents?
