Heat, Delaware Beaches
- When
- November 30, 11:59 PM EST
- Where
- Delaware Beaches forecast zone
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 38.683, -75.339 (the zone’s center; the record gives no point)
Heat in Delaware, November 30, 1999
November 1999 was an unseasonably warm month across Delaware. 9 degrees above normal and was the 10th warmest November on record since 1895 (105 years of record).
Where it happened
Every event with a place to put it; 4 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
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 4
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.
November 1999 was an unseasonably warm month across Delaware. The state monthly average temperature of 50.1 degrees was 2.9 degrees above normal and was the 10th warmest November on record since 1895 (105 years of record). At the New Castle County Airport, the monthly mean temperature of 49.4 degrees was the 8th warmest November since 1900.
The radar
The national radar mosaic for the moment the first event began.
Event by event
4 heat. Local standard time, as filed.
Heat, Inland Sussex
- When
- November 30, 11:59 PM EST
- Where
- Inland Sussex forecast zone
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 38.683, -75.339 (the zone’s center; the record gives no point)
Heat, Kent
- When
- November 30, 11:59 PM EST
- Where
- Kent forecast zone
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 39.096, -75.505 (the zone’s center; the record gives no point)
Heat, New Castle
- When
- November 30, 11:59 PM EST
- Where
- New Castle forecast zone
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 39.578, -75.639 (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
- Heat in New Jersey, November 30, 1999
- Heat in Pennsylvania, November 30, 1999
- Winter Weather in Massachusetts, November 30, 1999
- Heat in Maryland, November 30, 1999
- Heavy Snow in Michigan, November 30, 1999
- High Wind in Oregon, November 30, 1999
- Heavy Snow in Alaska, November 30, 1999
- High Wind in Nevada, November 30, 1999
- Waterspout in Puerto Rico, November 30, 1999
- Heavy Snow in Alaska, November 30, 1999
- High Wind in Alaska, November 30, 1999
- Flash Flood in Puerto Rico, November 30, 1999
More
Every storm in Delaware in 1999Every state in 1999This day in weather historyWarnings in Delaware, November 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 2026-09-24. Each event’s entry at NCEI: 5721765, 5721766, 5721767, 5721768.