nah. it's only 90 degrees upstairs in my house. 103 outside. Down in the basement, I think it's in the low 80s if not cooler, but don't have a thermometer down here. Putting the fan on makes it quite pleasant, and my basement's not got too many creepy crawlies to sleep in - but probably after it cools down tonight, I'll just open all the windows and run fans.

You do have to close all the windows and the drapes in the morning before the day heats up - that keeps things cooler than opening all the windows & drapes. I had my windows closed, but not the curtains.

My electric bill stays around $30 a month year round.