The Jersey Shore bay marinas can ice over and have wind blown ice chunks if the winter is nasty. Strong currents tend to prevent ice formation but increase the probabilty of getting wacked by chunk ice. Most marinas will haul out end of October early November, and will have limited services available November through early March.
There are two ice free marinas with some chunk ice protection a short drive from you at King of Prussia; Anchorage at Essington PA (less than 1 hr) and Delaware City DE (less than 2hr). Also in Philadelphia; Piers Marina, Phila Marina Center, Dave and Busters.
1970 Havsfidra 20 by Fisksatra
On the Delaware River at Fox Grove Marina Essington PA