If you pull the inner door panels off in this weather you are going have a time getting them back on. I would shoot some graphite in the key hole and try that first. I had that problem in warm weather on my passenger door and I certainly wouldn't pull that panel off again without good reason and not now unless you are in a heated garage. The problem is the weather seal at the top of panel where it goes under the window seal.
2005 WK, 5.7L, Gold, Leather
2003 TJ 4.0L Freedom Edition, Flame Red, 5 spd., CAI, Warn, stinger, Hella/KC trail lights.
"When you stop contributing you are just taking up space."