Yeah, it didn't sound like it would be an issue. I grew up in Chicago and I know what temperature change and rainfall is all about.
In regards to an earthquake, the table may stay level but the problem is that it is now in my neighbor's house.
What I am curious about is living by the beach. It's not as humid here, as say Miami, but what exactly is the affect of humidity on a table? Is it more in just how fast or slow it plays?
the humidy will slow it down a little in So CA . i'm mostly concern with keeping the cloth clean being in the garage. The dust will also slow simonis down. A good cover is what you need.