I have the Lil' Shark, so the hose needs to be stright to work properly. The only way I can store it straight is to hang it under the deck.
I would use a coated hook, so no damage to the hose
It's under the deck, so out of the sun.
Rain water would hit it, though the deck would protect it some.
Will wetting and drying take its toll on the hose?
Is it better to just store it in the Rubbermaid shed and deal with the "coiling"?