New Jersey, 1998Heat in New Jersey, July 20 to 23, 1998
July 20 to 23, 1998 · NWS PHI · 18 events in 18 counties and zones
A heat wave affected Central and Southern New Jersey from July 20th through the 23rd. This heat wave brought the highest temperatures of the year, mainly across the central and eastern parts of the state.
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
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- 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.
A heat wave affected Central and Southern New Jersey from July 20th through the 23rd. This heat wave brought the highest temperatures of the year, mainly across the central and eastern parts of the state. The hottest days of the heat wave were the 21st and 22nd. Cloudiness on the 22nd prevented temperatures from rising even higher around the local Philadelphia area as the center of the hot air mass was over the Middle Atlantic States. A weak trough brought in slightly cooler air on the 23rd. A stronger cold front moved through the region late in the day on the 23rd and brought in a much drier and cooler air mass through the upcoming weekend (July 25th and 26th). Although a few locations still reached 90 degrees on the 24th, humidity levels were very low and tolerable. Atlantic Electric set a new usage record on the 22nd with 2,230 megawatts/hour. The highest temperatures included 98 degrees at the Atlantic City International Airport in Pomona and Pennsauken (Camden County), 97 degrees in Manahawkin and Toms River (Ocean County), and Belle Mead (Somerset County), 96 degrees at the Marina in Atlantic City (a new record for the day) and in Mount Laurel (Burlington County), 96 degrees in New Brunswick (Middlesex County) and Morristown (Morris County), 95 degrees in Millville (Cumberland County) and Freehold and Howell (Monmouth County), 94 degrees in Wertsville (Hunterdon County) and Cape May Courthouse and Dennis Township (Cape May County), 93 degrees in Piney Hollow (Gloucester County) and 92 degrees in Trenton (Mercer County).
Heat, Burlington
- When
- July 20, 9:00 AM EST to July 23, 5:00 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
- July 20, 9:00 AM EST to July 23, 5:00 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
- July 20, 9:00 AM EST to July 23, 5:00 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, Eastern Atlantic
- When
- July 20, 9:00 AM EST to July 23, 5:00 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
- July 20, 9:00 AM EST to July 23, 5:00 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
- July 20, 9:00 AM EST to July 23, 5:00 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
- July 20, 9:00 AM EST to July 23, 5:00 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)
Heat, Gloucester
- When
- July 20, 9:00 AM EST to July 23, 5:00 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
- July 20, 9:00 AM EST to July 23, 5:00 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, Middlesex
- When
- July 20, 9:00 AM EST to July 23, 5:00 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, Salem
- When
- July 20, 9:00 AM EST to July 23, 5:00 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, Somerset
- When
- July 20, 9:00 AM EST to July 23, 5:00 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, Western Atlantic
- When
- July 20, 9:00 AM EST to July 23, 5:00 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
- July 20, 9:00 AM EST to July 23, 5:00 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 Monmouth
- When
- July 20, 9:00 AM EST to July 23, 5:00 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, Western Ocean
- When
- July 20, 9:00 AM EST to July 23, 5:00 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, Hunterdon
- When
- July 21, 9:00 AM EST to July 23, 5:00 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, Morris
- When
- July 21, 9:00 AM EST to July 23, 5:00 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
- 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.
- Heat in Pennsylvania, July 20 to 23, 199811 deaths · 75 injured · 6 events
- Heat in Maryland, July 20 to 23, 19982 deaths · 2 injured · 12 events
- Heat in Arkansas, July 20 to 31, 19982 deaths · 7 events
- Hail and Damaging Winds in Minnesota, July 20, 1998$23 million · 1.75 in hail · 24 events
- Flooding and Hail in Wisconsin, July 20, 19983 injured · $2.0 million · 1 in hail · 31 events
- Heat in Oklahoma, July 20, 19981 death · 1 event
- Flash Flooding in Kentucky, July 20, 1998$10 million · 10 events
- Flash Flood and Hail in North Carolina, July 20 to 21, 19981 injured · $1.5 million · 50 kt wind · 16 events
- Hail and Damaging Winds in Wisconsin, July 20, 1998$724,000 · 1.75 in hail · 12 events
- Hail and Damaging Winds in Georgia, July 20, 1998$307,000 · 2.75 in hail · 29 events
- Hail and Damaging Wind in Iowa, July 20, 1998$330,000 · 3 in hail · 6 events
- Heat in Delaware, July 20 to 24, 19988 injured · 4 events
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: 5664690, 5664691, 5664692, 5664693, 5664694, 5664695, 5664696, 5664697, 5664699, 5664700, 5664702, 5664703, 5664704, 5664705, 5664706, 5664707, 5664698, 5664701.