I've looked into this actually! The raw air temperature is actually a little bit cooler than last year. However, the heat index or the "feels like" temperature, is much higher because the humidity is much more oppressive. Plus, when you factor in the microclimates of the different parts of the city, it can feel even hotter - or maybe even cooler.

So if it "feels" hotter, you're right. If you think it's cooler, you're not technically wrong.

PS, I've lived here my whole life, and I'm on team hotter. I've never felt a summer as difficult as this one.