Waves of low pressure that formed along a sinking cold front brought most of Eastern Pennsylvania (except the Poconos) heavy snow. Snowfall averaged 7 to 11 inches in the local Philadelphia area and its suburbs, 4 to 10 inches in Berks County and the Lehigh Valley and 1 to 4 inches in the Poconos. It was the heaviest snowfall of the season for Philadelphia and its nearby suburbs.  Nearly all schools in Eastern Pennsylvania were closed on the 5th. Some were also closed the next day. The snow also caused hazardous travel and numerous accidents.  Philadelphia and many municipalities declared snow emergencies.

Precipitation with this event started as rain on the 4th. As colder air moved in from the north and precipitation intensity increased, the rain changed to all snow in the Poconos during the late evening on the 4th and then from the Lehigh Valley and Berks County around 1 a.m. EST on the 5th southeastward reaching the local Philadelphia area around 5 a.m. EST on the 5th.  The snow fell heavy at times in the Lehigh Valley and Berks County during the morning of the 5th and in southeast Pennsylvania from the middle of the morning through the early afternoon of the 5th.  The snow ended in the middle of the afternoon in the Poconos, Berks County and the Lehigh Valley and around 6 p.m. EST in southeast Pennsylvania including Philadelphia.

The heavy snow forced speed reductions on many major roadways and interstates in Eastern Pennsylvania. Speed restrictions were also in place on the bridges crossing the Delaware River in and around Philadelphia. Nevertheless, Interstate 78 was closed for four hours in Greenwich Township (Berks County)  due to a jack-knifed tractor trailer and fuel spill and the Pennsylvania Turnpike (Interstate 76) was closed for more than four hours due to a multiple tractor trailer accident in West Pikeland Township (Chester County).  Four people were injured in the collision of a SEPTA bus and vehicle in Philadelphia. There were at least 650 flight cancellations in and out of Philadelphia International Airport. Flights that were not canceled had average delays of two and a half hours. SEPTA suspended service on several of its regional commuter rail lines in southeast Pennsylvania. Amtrak modified its Northeast Corridor schedule as well as its train schedule to Harrisburg. Many shopping malls in the greater Philadelphia area were closed. PECO Energy reported 3,000 of its customers lost power. Trash collections and meetings were postponed.
The impact from the heavy snow continued into the 6th. In Lehigh County, a jack-knifed tractor trailer on Westbound Pennsylvania State Route 309 in South Whitehall Township knocked down a light pole onto a ramp for eastbound Pennsylvania State Route 222.  Two people were injured skidding into another tractor-trailer on Tilghman Street in Upper Macungie. In the greater Philadelphia metropolitan area, many schools were also closed on the 6th. SEPTA suspended some commuter bus lines into the 6th and flight delays at Philadelphia International Airport persisted into the 6th.
Representative snowfall included 11.3 inches in East Nantmeal Township (Chester County), 10.4 inches in King of Prussia (Montgomery County), 10.0 inches in Wayne (Delaware County), 9.7 inches in Salisbury Township (Lehigh County), 9.0 inches in Boyertown (Berks County) and Williams Township (Northampton County), 8.9 inches in New London (Chester County), Royersford (Montgomery County) and Drexel Hill (Delaware County), 7.8 inches in Reading (Berks County) and Jenkintown (Montgomery County), 7.5 inches at the Philadelphia International Airport, 7.2 inches in Spring City (Chester County) and Somerton (Philadelphia County), 6.7 inches at the Lehigh Valley International Airport, 6.5 inches in Hellertown (Northampton County), 4.0 inches in Albrightsville (Carbon County), 3.1 inches in Jim Thorpe (Carbon County), 2.0 inches in Saylorsburg (Monroe County) and 1.0 inch in Mount Pocono (Monroe County).
The cold front moved through New Jersey on the evening of the 4th. The wave of low pressure on the front was in the Tennessee Valley at that time. At 7 a.m. EST on the 5th, it reached western North Carolina and at 1 p.m. EST on the 5th, the strongest low pressure system wave was near Wilmington, North Carolina. Waves of low pressure continued to sink father south and at 7 p.m. EST on the 5th, the strongest wave was over central South Carolina. That wave and the associated cold front continued to move farther to the southeast that evening bringing an end to the snow in New Jersey. The fresh snow cover and clear skies that occurred overnight led to new daily low temperature records at both the Lehigh Valley International Airport (3 degrees above zero) and at Reading (2 degrees above zero).

Winter Weather in CARBON, PENNSYLVANIA
From 04-MAR-15 22:30:00 to 05-MAR-15 15:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Weather in MONROE, PENNSYLVANIA
From 04-MAR-15 22:30:00 to 05-MAR-15 15:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heavy Snow in LEHIGH, PENNSYLVANIA
From 05-MAR-15 00:30:00 to 05-MAR-15 16:30:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in NORTHAMPTON, PENNSYLVANIA
From 05-MAR-15 00:30:00 to 05-MAR-15 17:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in BERKS, PENNSYLVANIA
From 05-MAR-15 00:30:00 to 05-MAR-15 17:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Heavy Snow in WESTERN CHESTER, PENNSYLVANIA
From 05-MAR-15 02:00:00 to 05-MAR-15 18:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Heavy Snow in EASTERN CHESTER, PENNSYLVANIA
From 05-MAR-15 03:00:00 to 05-MAR-15 18:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Heavy Snow in WESTERN MONTGOMERY, PENNSYLVANIA
From 05-MAR-15 02:00:00 to 05-MAR-15 17:30:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in UPPER BUCKS, PENNSYLVANIA
From 05-MAR-15 02:00:00 to 05-MAR-15 17:30:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in LOWER BUCKS, PENNSYLVANIA
From 05-MAR-15 03:00:00 to 05-MAR-15 18:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in EASTERN MONTGOMERY, PENNSYLVANIA
From 05-MAR-15 03:00:00 to 05-MAR-15 18:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in DELAWARE, PENNSYLVANIA
From 05-MAR-15 04:00:00 to 05-MAR-15 18:15:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in PHILADELPHIA, PENNSYLVANIA
From 05-MAR-15 04:30:00 to 05-MAR-15 18:15:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet