MrsP I'm very much someone who feels the cold. Because the Tube is always an oven, in winter, I don't do layers but do have a massively coat that's basically a wearable duvet 
so I would def have noticed a decent temp change but once again, I think they got it wrong. It's obviously not the hell it was at the weekend but I don't think it's 22 either. 25 maybe?
I am so looking forward to earlier sunset - the equinox will be a good day!!
This year, I did post somewhere about trying to get a permanent cover for the balcony window. Next year I'm going to have to sod the expense, including any making good expense that might be demanded by the management company when I move, and get something really solid like a sail shade, affixed by bolts into the concrete if need be.
Last year, I had to stick material to the outside windows every day, because the velcro I used to attach simply melted and fell off in the heat.