I see there was a major step back between the 1990s and 2000s. I think the high number in the 2010s was driven by the 2010-2013 period which was exceptional, we had some very mediocre summers after that.
the 1990s, 2010s and 2020s (so far) are the only ones to average over 30 90 degree days.
How did Hightstown shoot so far up, where is that town located? Prior to the 2010s they never averaged more than the low 20s? I find that to be weird, I don't find our summers measurably hotter than the 90s. If they are, it's not because we have had hotter summers than 1991, 1993, 1995, 1999, but mainly because we haven't had the cooler in between summers like 1992 and 1996 and 1997.
Also, when do you think this kind of heat will reach our area and not just be confined to the Philly to Newark area?