@Oozenet I voted 40-44 since that's the hottest I've experienced all time (we were visiting relatives in the US).

However, let's go with anecdote!

Sweden, 1994. Me and my mom was in Stockholm one particular day, which was the hottest either of us had ever experienced. It was 30C

Last summer we had a week of higher-than-30 temperatures (I think max of 32 or so)