I kind of love these few weeks of rare true heat we get here in upstate NY. Sure, a week of days in the humid 90's makes me sleepy and miserable, but it evens out those cold dark winter days which make me even more sleepy and a worse kind of miserable. I really don't like being cold.
One of my secrets for keeping cool is to jump in the nearest creek. Ithaca is blessed with tons of streams and lakes and creeks, and the rocks around here tend to weather and break in such a way to make perfect swimming holes. Here's a photo of my favorite such refuge...which is on private property (I have permission) and wild horses will not drag the location out of me (but if you visit me, I might take you there). Five minutes in this cold running water sets me up for the rest of the day.
I can also stay cool by working in my basement, specifically in my etching studio. That's where I'll be this afternoon, because I am waaaay behind on keeping my bin o' prints stocked for the market and also because it's probably a chilly 68 degrees down there.