Humidity and temperature questions

I just picked up a 16-bottle Avanti and tossed a hygro in there while I'm trying to get 1lb of beads. It's been holding at 60 degrees at its warmest setting. I'm ignoring the RH level until I get the beads in.

The question is this. I know that RH refers to relative humidity and cold air holds less moisture, does anybody know the comparison of 65% RH at 60 degrees to an ideal 65-68 degrees?

Am I in for some dry sticks storing them at 60 degrees?

Should I pick up 70% beads to compensate?

Thanks for any help you can offer!