In terms of temperature rather than length of daylight, the peak of summer depends on geography (and latitude in particular). In where I live (Hong Kong), July and August are the hottest months and so it makes sense to me that Summer begins in June.
The only thing with more power than curiosity and intelligence is the power of indignant ignorance.
If this had been submitted on April 1st, I might've let it slide, but this is just ridiculous. It's like saying, "I mean, it's just one big word salad of how do you define something?" It's really quite sad.