My area ranges from roughly 33%-69% (51% avg) in the winter and im sure its a little higher in the summer. All my meters are reading with in 5% of each other so i am taking the average of those and coming up with a rough idea of what it is in the rooms. It gets kind of dry in the upper (30%-40%) level of my house during the winter casue of the heat though. Im not shipping my guitars anywhere. They just go back in the causes, although I am going to California with my Les Paul in February. Gibon told me they keep there factory at 45% and 70 degrees which I am trying to replicate.