We're talking 120 degrees or more in July/August--there's no insulation in the roof as far as we can tell. We even installed a window AC. It could cool one small area but not the whole thing, and the expense was painful. There is a huge ventilator fan up there that we use to cool the whole house in the summer, but it doesn't keep the attic area cool enough. I'm sure I'd have baked snake.
But we're hoping to remodel soon (soon being a couple of years). We'll raise the roof, install good insulation, and make the room useable. I want to turn part of the room into a ham radio station and part could be a snake room. That would be awesome!