There is a massive difference between 'hottest day of the year' and 'hot'. It may have been one but it certainly wasn't the other, nor has it been cold at night.But it is coping and this is the climate that doesn't help, hot in day, cold at night. , it was the hottest day of the year yesterday with high of 25 degrees.
As for coping, two days worth of widespread disruption due to one issue would suggest not.