Last Summer was pretty hot, humid, and dry, as most summers here in Southern Maryland are. DC is so much worse though. About 4 or 5 summers ago (4th of July), it was rainy and very cold (like down in the 50's, and I believe that summer it rained continuously.
My husband usually goes crabbing on the Patuxent, though I have a hard time with the humidity, and being light-skinned, I can not take the sun too long.
I and my family farmed tobacco when I was a young girl back in the 60's in Southern Maryland, and I don't remember the summers being that hot. We also didn't have air conditioning back then, so I think it is either being older, or the summer humidity has just gotten worse.