You're weather in Alberta can change quickly because of the chinooks, Jay. We get some rapid changes in Ontario depending on which side of the Jet Stream we're on.
I know a couple of ex-Jamaicans who say our summers are more brutal in Ontario, mainly because of the humidity. When the temp gets up to 35-37C, when you add the humidity to it, it's in the mid 40's. Eg. I thought I had a leak in my basement last year because I saw moisture under the vapour barrier. There was no noticeabe running water on the floor (a little) so I figured it must be the humidity. Went out, bought a 45 pint portable dehumidifier and put it in the basement. Within 90 min it removed around 2 gallons of water!!
A person convinced against their will is of the same opinion still.