Outside storage for acetic acid may be a problem, it fresses at fairly warm temperatures.

When I was a kid, the camera store I haunted had got some from Kodak, but the shipment included some Pro film and so the acid was also shiped refigerated. The poor guy behind the counter realized he had a hazard and was setting the bottles on their side as they were frozen and he was wairied that the "acid Ice" would break out the bottoms when it thawed.
Indoor storage at room temperature is indicated.