It’s too hot.
They’re having a hard time modulating the temperatures especially on the East Coast and it’s becoming obvious with the unseasonably high temps going into October. It’s getting harder and harder, year over year, for them to control weather patterns over the States without creating massive collateral damage to the environment and respective global weather patterns.
This is the main reason why the Gulf Coast is continually being hit with hurricanes at the moment (looking at the sixth hurricane to hit LA), to inundate the atmosphere with moisture. Operations to dump metal aerosols in the air have increased as to manipulate the moisture levels to produce a heavier cooling effect. Hurricane Teddy brought enough moisture up into Canada to trigger an Artic “blast” but they’re having a hard time keeping the NE, Midwest and Southern US “wet” enough to trigger colder temps.