That was a really memorable summer for so many of us. The heat was incredible - on the Herts/Cambs border we had 3 weeks of temperatures in the 90's (old figures!). One evening in the huge queue which marked the rush hour traffic going into a neighbouring town, there were lots of cars without drivers. In the pea fields where there were those huge "arms" which irrigate the crops, there were circles of people dancing in the spray, mostly wearing shirts and trousers and smart "business" dresses.
If you threw a cigarette end out of your car window, you would start a terrible fire. We couldn't bear evenings indoors so used to go to the pub' and fetch jugs of cold beer and then sit in friends' gardens, eating and drinking until bedtime. Tried to sleep in our garden a couple of times, but have you tried to sleep next to cows?! They just won't stop making a noise - coughing and snorting, munching and puffing and peeing. We were sure it was deliberate!
Trips to the beach, bbq's, garden parties, anything outside - all with guaranteed wonderful weather. First time I can remember that ever happening in the UK.