Hi ! I don't have personal experience with elbow replacement surgery, but I would add on to Alesandra's comment by saying vests may be a good pick for the colder weather! Loose, light or short sleeves paired with a vest may be a good option to keep you warm without restricting arm movement. Shawls can help with that too. You may also find it helpful to stick with clothes that button, snap, or zip up the front as opposed to going over the head -- I would recommend easy snaps (such as magnetic ones) or zippers for ease of use.
I hope your recovery is going well, best of luck! - Cindy (RheumatoidArthritis.net Team)