I used to have this HUUUUGE swamp cooler and it ran off cold water. I had the job of filling it, though I always had ICE in that damn water. I would Jump infront of the thing, stay there for a few minutes, and then plop under my blanket and warm up.
Oh man I miss my own GSEF (giant square electric fan) lol. It sadly died earlier this week and unfortunately that's just when the temperature went back up into the 90's. Blech. I only have my tiny round fan to console me and my cats and though it tries, it's not even close.