30 to 35 isn't THAT much when it comes to summer temperatures in Europe. I remember visiting Finnish Lapland on holidays a couple of times during the 1980s when those were the temperatures there, once in very early summer in Utsjoki near the border between Finland and Norway when the temperature was for over a week around 30 Celsius, and I sunbathed in a bikini (the mosquitoes had not yet hatched in numbers to make that impossible...) on a spot next to a pile of snow still left from the winter. It's kind of funny when they now try to claim that something like that near the middle of Europe, or on the Mediterranean coasts, would be something unprecedented.