I'm not about to get into the game of "it's really hot today in Pittsburgh so global warming must be here," or its inverse (which is really only about manufacturing doubt, anyway). It's just a fun tool, OK?
It's hard for me to imagine that much of the country is so hot lately, because here in Oregon it's been an unseasonably cool summer. I think we've only had one day above 80 and no days above 90, and it feels like summer hasn't yet arrived. Today it even rained, which hardly ever happens here in the summer. Right now it's 62 F, and it's been too cold to sleep with the windows open.