Opinions on powder storage in unheated garage

[FallAirFever]

Hey all,

Just finally finished putting my reloading bench and storage area together.
It is in my unheated (for now) attached garage. We don't park a vehicle in it. Is there any reason not to have my powder in there or should I find a spot in the house for it?

Thanks, looking forward to getting back to the bench and doing some loading!