If your definition of summer is endless days of 90 plus temperatures and obnoxious humidity then so far this summer you have been quite disappointed. Other than the two mini heatwaves we saw (Mid May, Mid June) the vast majority of days have actually been quite reasonable from the standpoint of temperature and humidity. What is going on during summer 2017? Well summer 2017 isn't missing in action so much. It just decided to park itself in a different location.
The upper air jet stream forecast illustrates the pattern we have been in since late May. Summer 2017 has parked itself in the Western US where a strong ridge has settled there and shows little signs of moving. Occasionally it noses eastward and then goes right back to the west. This is because we continue to see the jet stream trough in the east. This brings the flow out of Canada. Every time the trough lifts out, another one follows. The result is cold fronts coming through every 3 or 4 day. It gets very warm to hot for a day or so and then the dry cooler air from the north takes over. This has been the signature of the weather pattern in the East for the last 6 or 7 weeks and it shows no signs of changing anytime in the short range....READ MORE AT http://www.meteorologistjoecioffi.com/index.php/2017/07/05/summer-2017-missing-action-far/