Indeed, it’s probably a thought that applies more to PIT, where the max so far is 92, and there are 92 times August 24 or later where the temperature has been 93 or higher. Note that that doesn’t mean 92 years, as 10 of those days were in 1881, 7 in 1884, etc.
All in all, it amounts to 38 years out of 150 (25%).