I know a few of these well! I didn't realize it happened twice in 1983 though lol. July 4th 2010 was one of my favorite July 4 ever, it was such a dry heat that it didn't even feel like 90 let alone 100. I wish every summer was like that!
I remember the one in 2013 also and I think it was 2017 or 2018 JFK had back to back 99 and barely missed reaching 100 when NYC was stuck at 95 or 96.Had a heat index near 120 both days too, which was the highest on record for JFK.
1966 and 2010 were very similar, peak dry heat and downslope wind enabled JFK to top NYC.