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Message:: [QUOTE="GDJMSP, post: 8596397, member: 112"]Yeah, now. But I lived in Utah, 2nd driest state in the country, for almost 30 years. And it's not "no moisture", no matter where you are there is always some amount of humidity. About the lowest I can remember ever seeing was somewhere around 30% - and that was a rarity. Nevada, which is the only state drier than Utah, has an average humidity of around 38%, Utah is about 50% average if memory serves. As for Florida, in the winter time down here the humidity is surprisingly only about 10% higher than it is in Utah. In the summer of course it's about 30% higher. My point of course is that the numbers are somewhat surprising if you look them up, and what is considered low humidity is a very relative thing, and not as low as some might think. For what we're discussing, the danger zone was typically only when humidity reached higher levels. And that can occur even in the driest states. Of course humidity levels can be controlled and greatly lowered with proper coin storage, even in high humidity areas. This also helps explain why so many collectors have widely varied results with toning, no matter where they live. The end result always depends on one's specific environment (one's home) and how much one does, or does not do, to control that environment when it comes to coin storage. It's the specifics that control results, not the generalities. And there are more specifics than one would care to count.[/QUOTE]