I don't understand your question. If you wanted to grow osage in Oregon it would probably work fine. Oregon(at least west of the Cascades) has a climate that is agreeable with many types of trees. That is why there are lots of ormnamental tree farms in that part of Oregon.
The amount of moisture or lack of it doesn't necessarily have an effect on ring thickness. I have seen two osage trees growing next to each other that had totally different ring thicknesses. Genetics plays a role in it also.