Unless he's going to shed, you don't need to really worry about humidity, especially living where you do (this time of year anyway). Do you have a hygrometer? If not, you should get one, they're cheap.
Too much humidity can lead to a whole lot of problems, so I'd lay off unless he's going to shed. Also, do a search on this forum (search function is on the menu at the top of this page underneath where it says "welcome stormi") and you'll find more info