Don I was thinking this is a lot like a summer leading into an el nino, recall 1994 when we had extreme heat in June too, July was also quite hot, and it got cooler by August.
2002, another el nino lead up, had quite a different summer....
Don, was 2013-14 also an el nino winter? That was the last time JFK had their final 90 degree day in July (ironic because that was such a hot summer up until then with a long heatwave and our last 100 degree high prior to this June.)