Unseasonably hot and humid weather affected most of New Jersey on the 19th and 20th. High temperatures in most areas reached into the lower to mid 90s both days. The 19th was slightly hotter and more humid overall.   The combination of heat and humidity brought afternoon heat index values as high as 100F to 105F on the 19th. These were some of the highest heat index values of the entire summer.  A dissipating cold front on the 20th brought slightly drier air into the region during the afternoon of the 20th and heat index values peaked around 100F . A re-enforcing cold frontal passage on the 21st brought even cooler and drier air into the area and by the 22nd all high temperatures were less than 90 degrees in New Jersey.
To combat the heat, many counties, cities and municipalities opened cooling centers. The hours of air-conditioned senior citizen centers were extended. In Camden County, free fans were distributed to senior citizens.  A 24-year-old man drowned in the Delaware River as he and two companions were trying to swim to Burlington Island in Burlington County.
Highest temperatures included 96 degrees in Shamong (Burlington County), 95 degrees in Somerville (Somerset County), Berkeley Township (Ocean County), Hamilton (Mercer County), New Brunswick (Middlesex County) and Hillsborough (Somerset County), 94 degrees in Trenton (Mercer County), Cherry Hill (Camden County), Howell (Monmouth County), Madison (Morris County), Oceanport (Monmouth County) and the Atlantic City International Airport, 93 degrees in Lumberton (Burlington County), West Cape May (Cape May County), Seaside Park (Ocean County), South Harrison (Gloucester County), Pennsville (Salem County), Stewartsville (Warren County), Millville (Cumberland County) and Belmar (Monmouth County), 92 degrees in Hammonton (Atlantic County) and 91 degrees in Wildwood (Cape May County), Flemington (Hunterdon County) and Walpack (Sussex County).

Excessive Heat in Gloucester, NEW JERSEY
From 19-JUL-15 11:00:00 to 20-JUL-15 19:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heat in Eastern Cape May, NEW JERSEY
From 19-JUL-15 11:00:00 to 19-JUL-15 19:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in Mercer, NEW JERSEY
From 19-JUL-15 11:00:00 to 20-JUL-15 19:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in Eastern Monmouth, NEW JERSEY
From 19-JUL-15 11:00:00 to 19-JUL-15 19:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in Northwestern Burlington, NEW JERSEY
From 19-JUL-15 11:00:00 to 20-JUL-15 19:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in Sussex, NEW JERSEY
From 19-JUL-15 11:00:00 to 19-JUL-15 19:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in Eastern Ocean, NEW JERSEY
From 19-JUL-15 11:00:00 to 19-JUL-15 19:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Heat in Western Ocean, NEW JERSEY
From 19-JUL-15 11:00:00 to 19-JUL-15 19:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Heat in Morris, NEW JERSEY
From 19-JUL-15 11:00:00 to 19-JUL-15 19:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in Somerset, NEW JERSEY
From 19-JUL-15 11:00:00 to 19-JUL-15 19:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in Warren, NEW JERSEY
From 19-JUL-15 11:00:00 to 19-JUL-15 19:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heat in Hunterdon, NEW JERSEY
From 19-JUL-15 11:00:00 to 19-JUL-15 19:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heat in Salem, NEW JERSEY
From 19-JUL-15 11:00:00 to 19-JUL-15 19:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heat in Western Monmouth, NEW JERSEY
From 19-JUL-15 11:00:00 to 19-JUL-15 19:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Heat in Southeastern Burlington, NEW JERSEY
From 19-JUL-15 11:00:00 to 19-JUL-15 19:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heat in Western Atlantic, NEW JERSEY
From 19-JUL-15 11:00:00 to 19-JUL-15 19:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in Cumberland, NEW JERSEY
From 19-JUL-15 11:00:00 to 19-JUL-15 19:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in Western Cape May, NEW JERSEY
From 19-JUL-15 11:00:00 to 19-JUL-15 19:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Heat in Middlesex, NEW JERSEY
From 19-JUL-15 11:00:00 to 19-JUL-15 19:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in Camden, NEW JERSEY
From 19-JUL-15 11:00:00 to 20-JUL-15 19:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heat in Eastern Atlantic, NEW JERSEY
From 19-JUL-15 11:00:00 to 19-JUL-15 19:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS