For contrast, here's my best attempt at plotting some of the predictions by people who are expecting cooling (for whatever reason).

Do you have a source for that by any chance?

I've seen that claim made a few times (e.g. this week by a Durham councillor) and looked online for supporting evidence, but never seen any.

This map (The Winelands of Britain, Richard Selley) suggests a line from the Humber to the Bristol Channel.