Edmonton weather: We've had one autumn, yes, but what about third autumn?

A look at today’s Edmonton weather by Environment Canada.
Monday morning temperatures at the Edmonton Blatchford station measure 6.1 C with 7 km/h winds out of the west.
So I’ve lost count. Where are we now? Is it second autumn, or third autumn? Are we coming on to second or third winter? Why can’t the weather just make up it’s darn mind. It was as cold as it could be for a September weekend but now we’re looking at double digit highs for the entire week. Huh? A Fac