If that were true we should at the very least have felt the residual effects of that even if local conditions were not record breaking, but we didn't.
Here in Grand Rapids, Michigan, maximum temperature in July 2019 never even reached the mean maximum, which is 94 degrees F. We had zero, zip, nada days at or above the mean max.
Contrast that with the hottest July on record here going back to before the year 1900: July 1921. Maximum temperature that month hit 100, which was the 9th highest maximum on record and one of the ten days that month when maximum temperature was at or above the mean max.
Average temperature was a record 79.7 in July 1921, with cooling degree days setting a record at 465. July 2019 didn't even come close to these records. Average temperature ranked 15th at 75.4, and cooling degree days ranked 14th at 332.
The July with the highest maximum temperature in Grand Rapids was July 1936, when a record 108 was recorded, one of nine days that month at or above the mean max of 94. That month ranked 5th for cooling degree days at 390, and 5th for average temperature at 77.3.
Apparently everyone has already forgotten July 2012, the second hottest July on record here in Grand Rapids. It ranked 2nd for cooling degree days at 449, 2nd for average temperature at 79.2, and second for maximum temperature at 104, with eleven days that July at or above the mean max of 94. But July 2019 couldn't hold a candle to July 2012 for hot conditions, yet somehow it was the hottest ever . . . everywhere else.
The fact of the matter is the hottest Julys in Grand Rapids are a phenomenon of the distant past, with nine of the top fourteen for cooling degree days occurring before World War II. July 2019 ranked merely 14th in that list.
Ten of the top fifteen for average temperature also occurred before World War II. July 2019 ranked merely 15th in that list.
For maximum temperature July 2019 ranked tied for something like 72nd position.
Hottest July evah. Give me a break!