An approaching warm front generated a mixture of snow, sleet and freezing rain in New Jersey during the afternoon and evening of the 3rd. Snow and/or sleet accumulations averaged 1 to 3 inches in northwest New Jersey and around an inch or less throughout the rest of the state. Ice accumulations averaged around one tenth of an inch. The wintry mix led to hazardous conditions on non treated surfaces and many traffic accidents.
Snow began falling throughout most of the state between 2 p.m. EST and 4 p.m. EST on the 3rd. From Mercer and Monmouth Counties and the Raritan Basin southward, the snow changed to sleet and freezing rain during the mid to late afternoon. In Cape May County, precipitation changed to rain toward evening. Elsewhere, the transition to plain rain occurred during the early (south) to mid (central) evening. Across northwest New Jersey, snow fell heavier at times during the afternoon and then transitioned to sleet and freezing rain around the start of the evening. Precipitation either changed to rain or ended as freezing rain during the late evening on the 3rd.
Numerous minor accidents were reported on Interstate 80 in Warren County and Interstate 78 in Hunterdon County. Many schools had early dismissals and cancelled after school activities on the 3rd.  Colleges in northwest New Jersey cancelled classes on the evening of the 3rd. Schools in the northern part of the state had delayed openings on the 4th.
Representative snow and sleet fall included 3.0 inches in Highland Lakes (Sussex County), 2.5 inches in Denville (Morris County), 2.3 inches in Wantage Township (Sussex County), 2.0 inches in Blairstown (Warren County) and Clinton (Hunterdon County), 1.7 inches in Stanton (Hunterdon County), 1.5 inches in Marcella (Morris County), 1.3 inches in Bridgewater (Somerset County), 1.2 inches in Hackettstown (Warren County), 1.0 inch in Lafayette (Sussex County), 0.8 inches in Cheesequake (Middlesex County), 0.5 inches in Ewing (Mercer County), 0.4 inches in Florence (Burlington County) and 0.3 inches in Long Branch (Monmouth County)
Representative ice accumulations included 0.20 inches in Lebanon (Hunterdon County) and Neptune (Monmouth County), 0.13 inches in Washington Township (Gloucester County), 0.1 in Mount Laurel (Burlington County),  Trenton (Mercer County) and Hackettstown (Warren County) and around 0.05 inches in Millville (Cumberland County) and Somerville (Somerset County).
The wintry mix of precipitation was caused by the combination of an arctic high pressure system leaving cold air in place near the surface that was overrun by milder air aloft preceding a warm front lifting through the Tennessee and Ohio River Valleys on the 3rd. This push of warm air did work its way down to the surface overnight on the 3rd.

Winter Weather in SUSSEX, NEW JERSEY
From 03-MAR-15 14:00:00 to 03-MAR-15 23:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Weather in WARREN, NEW JERSEY
From 03-MAR-15 13:00:00 to 03-MAR-15 23:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Weather in MORRIS, NEW JERSEY
From 03-MAR-15 14:00:00 to 03-MAR-15 23:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Weather in HUNTERDON, NEW JERSEY
From 03-MAR-15 14:00:00 to 03-MAR-15 22:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in SOMERSET, NEW JERSEY
From 03-MAR-15 14:00:00 to 03-MAR-15 22:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Weather in MIDDLESEX, NEW JERSEY
From 03-MAR-15 14:00:00 to 03-MAR-15 22:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Weather in WESTERN MONMOUTH, NEW JERSEY
From 03-MAR-15 15:00:00 to 03-MAR-15 22:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Winter Weather in EASTERN MONMOUTH, NEW JERSEY
From 03-MAR-15 15:00:00 to 03-MAR-15 21:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Winter Weather in MERCER, NEW JERSEY
From 03-MAR-15 15:00:00 to 03-MAR-15 22:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Weather in NORTHWESTERN BURLINGTON, NEW JERSEY
From 03-MAR-15 15:00:00 to 03-MAR-15 21:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Winter Weather in WESTERN OCEAN, NEW JERSEY
From 03-MAR-15 15:30:00 to 03-MAR-15 21:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Weather in EASTERN OCEAN, NEW JERSEY
From 03-MAR-15 16:00:00 to 03-MAR-15 20:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Weather in EASTERN ATLANTIC, NEW JERSEY
From 03-MAR-15 15:30:00 to 03-MAR-15 20:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Winter Weather in WESTERN ATLANTIC, NEW JERSEY
From 03-MAR-15 15:00:00 to 03-MAR-15 20:30:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Winter Weather in CUMBERLAND, NEW JERSEY
From 03-MAR-15 15:00:00 to 03-MAR-15 20:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Winter Weather in WESTERN CAPE MAY, NEW JERSEY
From 03-MAR-15 15:00:00 to 03-MAR-15 18:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Winter Weather in EASTERN CAPE MAY, NEW JERSEY
From 03-MAR-15 15:00:00 to 03-MAR-15 17:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Winter Weather in SALEM, NEW JERSEY
From 03-MAR-15 14:30:00 to 03-MAR-15 20:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Winter Weather in GLOUCESTER, NEW JERSEY
From 03-MAR-15 14:30:00 to 03-MAR-15 21:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in CAMDEN, NEW JERSEY
From 03-MAR-15 14:30:00 to 03-MAR-15 21:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Winter Weather in NORTHWESTERN BURLINGTON, NEW JERSEY
From 03-MAR-15 15:30:00 to 03-MAR-15 20:30:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet