The weather also is causing delays and cancellations at Philadelphia International Airport.
Temperatures fell sharply overnight, leaving snowy, icy pavements for morning commuters. Even major highways like Interstate 95 have varied conditions ranging from wet to snow-covered and very slippery.
Dozens of spinout and fender-bender accidents are reported.
All Philadelphia public schools and those run by the Philadelphia Archdiocese are closed for the day.
Snow ends in NJ, roads plowed, slippery
New Jerseyans grabbed snow shovels and ice melt to clear driveways and sidewalks Wednesday. With temperatures below freezing, many schools have delayed opening because of icy conditions after Tuesday's snow storm.
The speed limit between Interchanges 1 and 3 on the New Jersey Turnpike is back to 65 mph. It had been reduced to 35 early Wednesday to make it easier to plow.
Spokesman Joe Orlando says the turnpike and Garden State Parkway were completely plowed. But motorists are urged to use caution because there are slick spots.
The National Weather Service says Tuesday's storm left between just over an inch in parts of Cape May County to more than 6 inches in Colts Neck in Monmouth County.
Pedestrians need to be careful on untreated sidewalks.
Forecasters say an area of snow over Maryland could bring a coating to extreme south Jersey Wednesday.
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