I originate in south california too, but I now live in northern california which is usually pretty humid (but cold.) I was worried about coming back down for the holidays and having to deal with such low humidity, but my snake doesn't seem to mind it at all. She's even ready to shed. I just have a small water dish on the hot side, just in case. Don't worry too much about it unless your snake is taking a long time to shed (or not shedding in one piece.)