New Jersey, 2001

Heat in New Jersey, June 26 to 30, 2001

June 26 to 30, 2001 · NWS PHI · 18 events in 18 counties and zones

A large ridge of high pressure both at the surface and aloft along the western Atlantic Ocean produced six consecutive days of heat and increasing humidity across most of New Jersey from June 26th through July 1st. A westerly surface flow even pushed shore areas into the record breaking 90s on the 27th and 28th.

Where it happened

Every event with a place to put it; 18 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
18

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 ridge of high pressure both at the surface and aloft along the western Atlantic Ocean produced six consecutive days of heat and increasing humidity across most of New Jersey from June 26th through July 1st. A westerly surface flow even pushed shore areas into the record breaking 90s on the 27th and 28th. A cold front broke the excessive heat with strong to severe thunderstorms on July 1st. High temperatures reached into the mid 90s and combined with the humid air mass produced afternoon heat indices of around 100 degrees, especially in urban centers in the southwest part of the state. The excessive heat caused Interstate 80 to buckle in Morris County near Parsippany on the 30th. June 28th and 30th were the hottest days for most locations. Highest temperatures included 96 degrees in New Lisbon (Burlington County), 95 degrees in Sandy Hook (Monmouth County) and Pennsauken (Camden County), 94 degrees at both the Atlantic City State Marina and the International Airport, Lumberton (Burlington County) and West Deptford (Gloucester County), 93 degrees in Mount Holly (Burlington County), Trenton (Mercer County) and Wildwood (Cape May County), 92 degrees in Millville (Cumberland County), Chatham (Morris County) and New Brunswick (Middlesex County) and 91 degrees in Somerville (Somerset County). At the Atlantic City State Marina, the high temperature of 94 degrees on the 28th set a new record for the date. The high temperature of 91 degrees the previous day tied the record for the date.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Philadelphia/Mount Holly wrote its last area forecast discussion before the first event at Jun 26, 1:00 AM EST, 10 hours earlier.

Area forecast discussion, Jun 26, 1:00 AM EST, 10 hours before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
200 AM EDT TUE JUN 26 2001

ONE DAY LATER AND FCST SEEMS TO BE THE SAME. H5 CLSD LOW OVR TN VLY
TO SLIP FURTHER AWAY FRM AREA AND MID ATLC H5 RDG BLDS INTO THE
AREA. THIS WL BRG GNRLY FAIR WX TO AREA THRU MOST OF WEEK WITH GRDL
INC IN HT AND HUMIDITY. IT APPEARS AS IF IT WILL START FEELING
SOMEWHAT UNCOMFORTABLE WED AND MORE NOTICEABLE FOR THU AND PROB
FRI.  WITH THIS IN MIND...WL ISSUE SPS FOR IMPENDING HT AND HUM.  AT
THIS TIME CONDITIONS SEEM AS IF THEY WL STAY BELOW HT ADVSRY/XCSV HT
WRNG SO WL NOT CALL IT A HT OTLK.

MDLS CONT TO EVOLVE H5 HI WITH TIME TO OUR S AND THIS MAY ALLOW FOR
FNT THAT WL BE UP IN CANADA TO NR THE AREA IN THE WEEKEND.  TIMING
IS NOT QUITE CERTAIN BUT FOR NOW WL LEAVE IT AS BEING ON SAT.

ON MARINE...NO FLAGS XPCTD.

FCSTID = 14

.PHI...
DE...NONE.
MD...NONE.
NJ...NONE.
PA...NONE.
MARINE...NONE.

The radar

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

Open the radar archive at this moment

Event by event

18 heat. Local standard time, as filed.

Heat, Burlington

When
June 26, 11:00 AM EST to June 30, 11:59 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 26, 11:00 AM EST to June 30, 11:59 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 26, 11:00 AM EST to June 30, 11:59 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 26, 11:00 AM EST to June 30, 11:59 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, Hunterdon

When
June 26, 11:00 AM EST to June 30, 11:59 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, Mercer

When
June 26, 11:00 AM EST to June 30, 11:59 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, Middlesex

When
June 26, 11:00 AM EST to June 30, 11:59 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 26, 11:00 AM EST to June 30, 11:59 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, Salem

When
June 26, 11:00 AM EST to June 30, 11:59 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, Somerset

When
June 26, 11:00 AM EST to June 30, 11:59 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, Western Atlantic

When
June 26, 11:00 AM EST to June 30, 11:59 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 26, 11:00 AM EST to June 30, 11:59 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 Monmouth

When
June 26, 11:00 AM EST to June 30, 11:59 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, Western Ocean

When
June 26, 11:00 AM EST to June 30, 11:59 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 Atlantic

When
June 27, 11:00 AM EST to June 28, 9:00 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 27, 11:00 AM EST to June 28, 9:00 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 Monmouth

When
June 27, 11:00 AM EST to June 28, 9:00 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 Ocean

When
June 27, 11:00 AM EST to June 28, 9:00 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

More

Every storm in New Jersey in 2001Every state in 2001This day in weather historyWarnings in New Jersey, June 2001

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 2026-09-24. Each event’s entry at NCEI: 5253864, 5253940, 5253941, 5253942, 5253943, 5253944, 5253945, 5253946, 5253947, 5253948, 5253949, 5253950, 5253951, 5253952, 5253953, 5253954, 5253955, 5253956.