PDPs in the garage

I'm a little concerned about the load that my PDP-11 cabinet (rack mount, dual RL02 drives) is putting on the floor in my daylight basement. Also, I'm thinking that recovering the space might be nice, so I was considering moving the PDP-11 system back to the garage. If any of you have a PDP or other big-iron systems in the garage, how do you deal with temperature extremes (hot in summer, cold in winter)? Do you simply not operate the computer when it's too hot or cold? Do you think it's a risk to even store the system in the garage? My location is Portland, Oregon, so it doesn't really get super cold in the winter. I think the coldest I've measured in the garage is 50F. But summer can get pretty warm. It's scheduled to get 85F today, and we had 100F a week or two ago. Of course the garage doesn't get as hot as outside temps, but it can get up there. I realize heat can be a big enemy of computers/electronics. Also, since the RL02 drives are mechanical and precision devices, they might not take well to temperature shifts. Thoughts?