Is the tree in leaf, dormant? It matters.

I know you are in Zone 6B but approximately where? Is this going into the ground or remain containerized? I believe same are good to zone 6B, especially if protected some. Regardless, you can put it outside but if leafs and, then you get cold, could be damaged, by late frosts.

Rhode island and yes it will stay in the container. Last frost here probably mid may

Can you place it on a dolly and wheel it in and out of your garage?

Mine are still in, I haven't uncovered them yet to see if they are leafing out - I suspect that they are, and need to be watered and outside. I decided to wait until tonight's storms have all passed. Mine are on dollys so I can easily roll them back into the garage if we get near-freezing temps again (as we surely will)>