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Flood in Atlantic County, New Jersey
63 floods and flash floods events in the NCEI Storm Events record, 1950 to 2026. Event types counted: Flood, Flash Flood, Coastal Flood, Lakeshore Flood.
NCEI notes that Storm Data is compiled from a variety of sources including the National Weather Service, other federal, state and local agencies, the media and the public; that property and crop damage figures are estimates; and that some events are recorded by NWS forecast zone rather than by county. FEMA notes that NFIP claim records are redacted and aggregated to protect the privacy of policyholders. Storm records through 30 Jun 2026.
Atlantic County, New Jersey, has 63 flood events in the NCEI record since 1950, with at least one in 20 different years.
August is the busiest month, with 24 of the recorded events. The last 20 years account for 55 events against 8 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 1.7% of the 3,787 flood events recorded in New Jersey; its 11.3 per 100 square miles compares with 51.5 statewide.
Compared with New Jersey
| Measure | Atlantic County | New Jersey | US |
|---|---|---|---|
| Flood events since 1950 | 63 | 3,787 | 183,559 |
| Per 100 square miles | 11.3 | 51.5 | 5.2 |
| Per 10,000 residents | 2.3 | 4.1 | 5.5 |
| Deaths recorded | 0 | 61 | 2,961 |
| Busiest month | August | July | June |
By year
Seasonality
1Feb
0Mar
1Apr
1May
3Jun
8Jul
19Aug
24Sep
3Oct
1Nov
0Dec
2
Recorded events
All 63 events, most recent first. Magnitude is hail size, tornado rating or wind speed as recorded.
| Date | Event type | Magnitude | Property damage | Crop damage | Deaths | Injuries | Geography |
|---|---|---|---|---|---|---|---|
| 31 Jul 2025 | Flash Flood | — | — | — | — | — | County |
| 31 Jul 2025 | Flash Flood | — | — | — | — | — | County |
| 31 Jul 2025 | Flash Flood | — | — | — | — | — | County |
| 31 Jul 2025 | Flash Flood | — | $30K | — | — | — | County |
| 10 Jul 2025 | Flash Flood | — | $20K | — | — | — | County |
| 18 Dec 2023 | Flood | — | — | — | — | — | County |
| 25 Jul 2022 | Flash Flood | — | — | — | — | — | County |
| 23 Sep 2021 | Flash Flood | — | — | — | — | — | County |
| 29 Aug 2021 | Flash Flood | — | — | — | — | — | County |
| 8 Jun 2021 | Flash Flood | — | — | — | — | — | County |
| 7 Aug 2020 | Flash Flood | — | — | — | — | — | County |
| 7 Aug 2020 | Flash Flood | — | — | — | — | — | County |
| 7 Aug 2020 | Flash Flood | — | — | — | — | — | County |
| 10 Jul 2020 | Flash Flood | — | — | — | — | — | County |
| 10 Jul 2020 | Flash Flood | — | — | — | — | — | County |
| 7 Aug 2017 | Flood | — | — | — | — | — | County |
| 7 Aug 2017 | Flood | — | — | — | — | — | County |
| 29 Jul 2017 | Flood | — | — | — | — | — | County |
| 29 Jul 2017 | Flood | — | — | — | — | — | County |
| 29 Jul 2017 | Flood | — | — | — | — | — | County |
| 29 Jul 2017 | Flood | — | — | — | — | — | County |
| 29 Jul 2017 | Flash Flood | — | — | — | — | — | County |
| 13 May 2017 | Flood | — | — | — | — | — | County |
| 13 May 2017 | Flood | — | — | — | — | — | County |
| 19 Sep 2016 | Flood | — | — | — | — | — | County |
| 16 Jul 2016 | Flood | — | — | — | — | — | County |
| 8 Jul 2016 | Flash Flood | — | — | — | — | — | County |
| 15 Jul 2015 | Flash Flood | — | — | — | — | — | County |
| 15 Jul 2015 | Flash Flood | — | — | — | — | — | County |
| 27 Jun 2015 | Flash Flood | — | — | — | — | — | County |
| 27 Jun 2015 | Flash Flood | — | — | — | — | — | County |
| 1 Jun 2015 | Flash Flood | — | — | — | — | — | County |
| 12 Aug 2014 | Flash Flood | — | — | — | — | — | County |
| 12 Aug 2014 | Flash Flood | — | — | — | — | — | County |
| 12 Aug 2014 | Flash Flood | — | — | — | — | — | County |
| 12 Aug 2014 | Flash Flood | — | — | — | — | — | County |
| 2 May 2014 | Flood | — | — | — | — | — | County |
| 15 Aug 2013 | Flood | — | — | — | — | — | County |
| 18 Jun 2013 | Flash Flood | — | — | — | — | — | County |
| 29 Oct 2012 | Flood | — | — | — | — | — | County |
| 14 Aug 2012 | Flash Flood | — | $10K | — | — | — | County |
| 11 Aug 2012 | Flash Flood | — | $5K | — | — | — | County |
| 1 Sep 2011 | Flood | — | — | — | — | — | County |
| 28 Aug 2011 | Flood | — | $30M | — | — | — | County |
| 27 Aug 2011 | Flash Flood | — | — | — | — | — | County |
| 15 Aug 2011 | Flood | — | — | — | — | — | County |
| 14 Aug 2011 | Flash Flood | — | — | — | — | — | County |
| 17 Aug 2010 | Flash Flood | — | — | — | — | — | County |
| 14 Jul 2010 | Flash Flood | — | — | — | — | — | County |
| 14 Mar 2010 | Flood | — | — | — | — | — | County |
| 27 Dec 2009 | Flood | — | — | — | — | — | County |
| 12 Aug 2009 | Flash Flood | — | — | — | — | — | County |
| 12 Aug 2009 | Flash Flood | — | — | — | — | — | County |
| 4 Jun 2007 | Flood | — | — | — | — | — | County |
| 15 Apr 2007 | Flood | — | $1.0M | — | — | — | County |
| 6 Jun 2002 | Flood | — | — | — | — | — | County |
| 11 Aug 2001 | Flash Flood | — | — | — | — | — | County |
| 17 Jun 2001 | Flash Flood | — | — | — | — | — | County |
| 12 Aug 2000 | Flash Flood | — | — | — | — | — | County |
| 4 Aug 2000 | Flash Flood | — | — | — | — | — | County |
| 3 Jan 1999 | Flash Flood | — | — | — | — | — | County |
| 20 Aug 1997 | Flash Flood | — | $54M | — | — | — | County |
| 24 Jul 1997 | Flood | — | — | — | — | — | County |
Questions and answers
How many flood events has Atlantic County had?
63 events in the NCEI Storm Events record between 1950 and 2026. Reporting of floods and flash floods became far more complete after 1996, so early decades undercount.
When was the last recorded flood event in Atlantic County?
31 Jul 2025 (Flash Flood). Records reach NCEI about 120 days after the month ends.
What was the most damaging flood event recorded in Atlantic County?
The flash flood of 20 Aug 1997, with property damage estimated by NCEI at $54M.
How does Atlantic County compare with New Jersey for flood?
11.3 events per 100 square miles against 51.5 statewide; the county holds 63 of the state's 3,787 recorded events.
Provenance
NOAA NCEI Storm Events Database, yearly details files through 30 Jun 2026, public domain. County-recorded events plus zone-recorded events whose forecast zone is named for the county (marked "Forecast zone"). Population and area from the US Census Bureau (2021). Built 1 Oct 2026. See the methodology, the Flood hub and the county page.