Heat in New Jersey, June 7 to 9, 1999

Name: Heat in New Jersey, June 7 to 9, 1999
Start: 1999-06-07T09:00
End: 1999-06-09T18:00
Location: New Jersey

June 7 to 9, 1999 · NWS PHI · 21 events in 20 counties and zones

A large high pressure system over the southeastern United States pumped in a hot and humid air mass across New Jersey. The hottest day was the 8th.

Where it happened

Every event with a place to put it; 21 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: None recorded
Crop damage: None recorded
Events: 21

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS PHI wrote it up.

A large high pressure system over the southeastern United States pumped in a hot and humid air mass across New Jersey. The hottest day was the 8th. A weak trough brought in slightly cooler and considerably drier air on the 9th, although high temperatures still reached around 90 degrees. A stronger backdoor cold front (it moved from north to south) brought in considerably cooler air into the region the evening of the 9th. New daily high temperature records were set on both the 7th (96 degrees) and the 8th (98 degrees) at the Atlantic City International Airport in Pomona. The daily record high temperature of 95 degrees was tied at the Atlantic City Marina on the 8th. In Camden County, a hotline was established for the elderly to refer them to cooler, air-conditioned locations. No serious heat related problems were reported. Highest temperatures during this hot spell included 100 degrees in New Lisbon (Burlington County), 98 degrees at the Atlantic City International Airport, Freehold (Monmouth County), East Toms River (Ocean County), Pemberton (Burlington County) and Belle Mead (Somerset County), 97 degrees in Mount Holly (Burlington County), Pennsauken (Camden County), Long Branch (Monmouth County), Iselin (Middlesex County), White House Station (Hunterdon County) and Sussex (Sussex County), 96 degrees in Chatham (Morris County), Columbia (Warren County), New Brunswick (Middlesex County), Margate (Atlantic County) and Millville (Cumberland County), 95 degrees at the Marina within Atlantic City, Trenton (Mercer County) and Cape May Courthouse and 94 degrees in Hightstown (Mercer County).

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

21 heat. Local standard time, as filed.

Heat, Hunterdon

When: June 7, 9:00 AM EST to June 8, 6:00 PM EST
Where: Hunterdon forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 40.567, -74.912 (the zone’s center; the record gives no point)

Heat, Middlesex

When: June 7, 9:00 AM EST to June 8, 6:00 PM EST
Where: Middlesex forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 40.440, -74.409 (the zone’s center; the record gives no point)

Heat, Morris

When: June 7, 9:00 AM EST to June 8, 6:00 PM EST
Where: Morris forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 40.862, -74.544 (the zone’s center; the record gives no point)

Heat, Somerset

When: June 7, 9:00 AM EST to June 8, 6:00 PM EST
Where: Somerset forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 40.564, -74.616 (the zone’s center; the record gives no point)

Heat, Sussex

When: June 7, 9:00 AM EST to June 8, 6:00 PM EST
Where: Sussex forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 41.140, -74.690 (the zone’s center; the record gives no point)

Heat, Warren

When: June 7, 9:00 AM EST to June 8, 6:00 PM EST
Where: Warren forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 40.857, -74.997 (the zone’s center; the record gives no point)

Heat, Western Monmouth

When: June 7, 9:00 AM EST to June 8, 6:00 PM EST
Where: Western Monmouth forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 40.288, -74.158 (the zone’s center; the record gives no point)

Heat, Burlington

When: June 7, 9:00 AM EST to June 9, 6:00 PM EST
Where: Burlington forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 39.878, -74.668 (the zone’s center; the record gives no point)

Heat, Camden

When: June 7, 9:00 AM EST to June 9, 6:00 PM EST
Where: Camden forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 39.804, -74.960 (the zone’s center; the record gives no point)

Heat, Cumberland

When: June 7, 9:00 AM EST to June 9, 6:00 PM EST
Where: Cumberland forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 39.328, -75.129 (the zone’s center; the record gives no point)

Heat, Gloucester

When: June 7, 9:00 AM EST to June 9, 6:00 PM EST
Where: Gloucester forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 39.717, -75.142 (the zone’s center; the record gives no point)

Heat, Mercer

When: June 7, 9:00 AM EST to June 9, 6:00 PM EST
Where: Mercer forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 40.283, -74.702 (the zone’s center; the record gives no point)

Heat, Salem

When: June 7, 9:00 AM EST to June 9, 6:00 PM EST
Where: Salem forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 39.577, -75.358 (the zone’s center; the record gives no point)

Heat, Western Atlantic

When: June 7, 9:00 AM EST to June 9, 6:00 PM EST
Where: Western Atlantic forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 39.469, -74.634 (the zone’s center; the record gives no point)

Heat, Western Cape May

When: June 7, 9:00 AM EST to June 9, 6:00 PM EST
Where: Western Cape May forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 39.085, -74.850 (the zone’s center; the record gives no point)

Heat, Western Ocean

When: June 7, 9:00 AM EST to June 9, 6:00 PM EST
Where: Western Ocean forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 39.866, -74.250 (the zone’s center; the record gives no point)

Heat, Western Ocean

When: June 7, 9:00 AM EST to June 9, 6:00 PM EST
Where: Western Ocean forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 39.866, -74.250 (the zone’s center; the record gives no point)

Heat, Eastern Monmouth

When: June 8, 9:00 AM EST to 6:00 PM EST
Where: Eastern Monmouth forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 40.288, -74.158 (the zone’s center; the record gives no point)

Heat, Eastern Atlantic

When: June 8, 9:00 AM EST to 6:00 PM EST
Where: Eastern Atlantic forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 39.469, -74.634 (the zone’s center; the record gives no point)

Heat, Eastern Cape May

When: June 8, 9:00 AM EST to 6:00 PM EST
Where: Eastern Cape May forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 39.085, -74.850 (the zone’s center; the record gives no point)

Heat, Eastern Ocean

When: June 8, 9:00 AM EST to 6:00 PM EST
Where: Eastern Ocean forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 39.866, -74.250 (the zone’s center; the record gives no point)

What these are

Heat: Heat below excessive heat criteria that still caused deaths, injuries or significant impacts.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in New Jersey in 1999 Every state in 1999 This day in weather history Warnings in New Jersey, June 1999

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 5703597, 5703598, 5703599, 5703600, 5703601, 5703602, 5703603, 5703604, 5703605, 5703606, 5703610, 5703611, 5703612, 5703613, 5703614, 5703615, 5703616, 5703596, 5703607, 5703608, 5703609.