Richard:
I had a similar introduction to humidity. Grew up in Southern California and went to Navy flight school in Pensacola Florida in the summer of '69. I remember thinking, while walking down the jetway off the airplane: "I wonder why they've got the heat blasting in the middle of the summer." It only lasted a second because we were quickly inside the air conditioned terminal. It wasn't until I picked up my luggage and walked out the front of the terminal that I realized what we were in for.
Another humidity story: While in training in Pensacola we had a rifle inspection one day. Dilligently cleaned our rifles in our air conditioned dorm then fell out for inspection. Discoverd a few minutes later when we came to port arms for inspection that the humid air had condensed all over the cold steel of our rifles. Failed the inspection. Learned to pre-warm our rifles - attention to detail..... drop and give me fifty.... Aye Aye Sir!