A quick moving Alberta Clipper type low pressure system brought a wintry mix of precipitation to central New Jersey and periods of snow to northwest New Jersey.  Snowfall averaged 1 to 3 inches in the Raritan Basin and Northwest New Jersey and around an inch in the rest of central New Jersey. Ice accumulations in central New Jersey were less than five hundredths of an inch. Untreated roadways and walkways became slippery. Traffic accidents along major roadways were concentrated in and around Mercer County. Speed limits were reduced on the New Jersey Turnpike and Garden State Parkway. Schools in Sussex County were either closed or had delayed openings. New Jersey Transit cross-honored commuting tickets.
In central New Jersey, precipitation started as snow around 4 a.m. EST on the 17th. A precipitation break occurred between 7 a.m. EST and 10 a.m. EST. When precipitation started again, it was a wintry mix of sleet and freezing rain. Temperatures rose above freezing during the early afternoon and the wintry mix changed over to plain rain. Then during the late afternoon, precipitation changed back to snow before it ended that day. Across Northwest New Jersey and the Raritan Basin, snow began between 5 a.m. EST and 6 a.m. EST and fell at its steadiest across the far northwest. Some freezing rain mixed in at times in the Raritan Basin. The snow fell at its heaviest during the late afternoon in northwest New Jersey just as it was ending.
Representative snowfall included 3.0 inches in Highland Lakes (Sussex County) and Marcella and Butler in Morris County, 2.5 inches in Wantage (Sussex County) and Knowlton (Warren County) 2.0 inches in Morris Plains (Morris County), Hope (Warren County) and Newton (Sussex County), 1.8 inches in Bound Brook (Somerset County) and Stewartsville (Warren County) 1.5 inches in Whitehouse Station (Hunterdon County), Belle Mead (Somerset County) and Edison Middlesex County), 1.2 inches in Hamilton Township (Mercer County) and 0.7 inches in Florence (Burlington County) and Freehold (Monmouth County).
The Alberta Clipper type low which caused the wintry precipitation moved eastnortheast from the lower Ohio Valley on the evening of the 16th and reached Lake Erie at 7 a.m. EST on the 17th. From there, a secondary low pressure system formed around Philadelphia and moved off the central New Jersey coast during the middle of the afternoon on the 17th. This low became the primary low pressure system as it moved toward Long Island, New York around the time precipitation ended later that afternoon.

Winter Weather in SUSSEX, NEW JERSEY
From 17-DEC-13 05:00:00 to 17-DEC-13 16:30:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in WARREN, NEW JERSEY
From 17-DEC-13 05:00:00 to 17-DEC-13 16:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in MORRIS, NEW JERSEY
From 17-DEC-13 05:30:00 to 17-DEC-13 16:30:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in HUNTERDON, NEW JERSEY
From 17-DEC-13 05:00:00 to 17-DEC-13 16:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in SOMERSET, NEW JERSEY
From 17-DEC-13 05:00:00 to 17-DEC-13 16:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in MERCER, NEW JERSEY
From 17-DEC-13 04:30:00 to 17-DEC-13 16:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in NORTHWESTERN BURLINGTON, NEW JERSEY
From 17-DEC-13 04:00:00 to 17-DEC-13 17:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in CAMDEN, NEW JERSEY
From 17-DEC-13 03:00:00 to 17-DEC-13 16:30:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in GLOUCESTER, NEW JERSEY
From 17-DEC-13 03:00:00 to 17-DEC-13 16:30:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in MIDDLESEX, NEW JERSEY
From 17-DEC-13 05:00:00 to 17-DEC-13 16:30:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in WESTERN MONMOUTH, NEW JERSEY
From 17-DEC-13 05:00:00 to 17-DEC-13 17:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter