You could spend a year in the lower gorge at smith and not tick it all. and right in downtown Eugene you have Columns (more like, tick them all in an afternoon, but whatever) and there are basalt columns all over oregon that need climbing.
As far as rain goes, 2/3 of oregon is desert (<15 in. per year) but the 1/3 west of the cascades makes up for the other 2/3 as far as precip goes.
As far as your GF and climbing goes, way to have your priorities straight!