Not regular seasons, but still: in Norse mythology the world will end (the gods will die, the earth will burn, the sun will be swallowed, the Fenris wolf and Midgard serpent will run around being obnoxious) with Ragnarok, the final great battle. Ragnarok is heralded by the fimbul winter (or great winter), three harsh winters in a row with no summer between.

But then it all starts over again.