Well, here in Tasmania, Australia... We had our (what felt like) three weeks of summer and lovely warm weather, and now the weather is cooling down fast. While my family up in NSW are still all up there with tshirts and sundresses and hot days, we are already wearing our warm clothes most of the time and have had to use the heater a few times. Also... it is currently raining.
I'm in the central southern part of British Columbia which is usually pretty arid. This year, spring is arriving late and it is much cooler and rainier than usual. We've actually had two sunny cool days in a row, after a very rainy week.
Here in Wellington we had the worst summer ever. It was a total shocker. And now it's autumn it's been really foggy and a bit chilly -generally ugh. But then, for the past two days, we had the hottest, brightest, sunniest days for months. Hotter than most summer days.