States › New Jersey › Middlesex County › Flood
Flood in Middlesex County, New Jersey
202 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.
NCEI records 202 flood events in Middlesex County, New Jersey, between 1950 and 2026, spread over 30 years.
August is the busiest month, with 47 of the recorded events. The last 20 years account for 165 events against 37 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 5.3% of the 3,787 flood events recorded in New Jersey; its 65.3 per 100 square miles compares with 51.5 statewide.
NCEI attributes 5 deaths in the county to floods and flash floods.
Compared with New Jersey
| Measure | Middlesex County | New Jersey | US |
|---|---|---|---|
| Flood events since 1950 | 202 | 3,787 | 183,559 |
| Per 100 square miles | 65.3 | 51.5 | 5.2 |
| Per 10,000 residents | 2.3 | 4.1 | 5.5 |
| Deaths recorded | 5 | 61 | 2,961 |
| Busiest month | August | July | June |
By year
Seasonality
8Feb
6Mar
10Apr
10May
14Jun
10Jul
44Aug
47Sep
17Oct
22Nov
4Dec
10
Recorded events
The 194 events kept for this page are the 120 most recent plus the 80 with the most damage, deaths or injuries out of 202. 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 |
| 14 Jul 2025 | Flash Flood | — | — | — | — | — | County |
| 14 Jul 2025 | Flash Flood | — | — | — | — | — | County |
| 14 Jul 2025 | Flash Flood | — | — | — | — | — | County |
| 14 May 2025 | Flash Flood | — | $10K | — | — | — | County |
| 14 May 2025 | Flash Flood | — | — | — | — | — | County |
| 6 Aug 2024 | Flash Flood | — | — | — | — | — | County |
| 6 Aug 2024 | Flash Flood | — | — | — | — | — | County |
| 9 Mar 2024 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 13 Jan 2024 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 28 Dec 2023 | Flood | — | — | — | — | — | County |
| 18 Dec 2023 | Flood | — | — | — | — | — | County |
| 18 Dec 2023 | Flood | — | — | — | — | — | County |
| 11 Sep 2023 | Flash Flood | — | — | — | — | — | County |
| 16 Jul 2023 | Flash Flood | — | — | — | — | — | County |
| 16 Jul 2023 | Flash Flood | — | — | — | — | — | County |
| 16 Jul 2023 | Flash Flood | — | — | — | — | — | County |
| 15 Jul 2023 | Flash Flood | — | — | — | — | — | County |
| 15 Jul 2023 | Flash Flood | — | — | — | — | — | County |
| 15 Jul 2023 | Flash Flood | — | — | — | — | — | County |
| 15 Jul 2023 | Flash Flood | — | — | — | — | — | County |
| 15 Apr 2023 | Flash Flood | — | — | — | — | — | County |
| 23 Dec 2022 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 18 Apr 2022 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 1 Jan 2022 | Flash Flood | — | — | — | — | — | County |
| 26 Oct 2021 | Flash Flood | — | — | — | — | — | County |
| 26 Oct 2021 | Flash Flood | — | — | — | — | — | County |
| 26 Oct 2021 | Flash Flood | — | — | — | — | — | County |
| 26 Oct 2021 | Flash Flood | — | — | — | — | — | County |
| 26 Oct 2021 | Flash Flood | — | — | — | — | — | County |
| 26 Oct 2021 | Flash Flood | — | — | — | — | — | County |
| 26 Oct 2021 | Flash Flood | — | — | — | — | — | County |
| 26 Oct 2021 | Flash Flood | — | — | — | — | — | County |
| 26 Oct 2021 | Flash Flood | — | — | — | — | — | County |
| 23 Sep 2021 | Flash Flood | — | — | — | — | — | County |
| 1 Sep 2021 | Flash Flood | — | $50M | — | 3 | — | County |
| 27 Aug 2021 | Flash Flood | — | — | — | — | — | County |
| 22 Aug 2021 | Flash Flood | — | — | — | — | — | County |
| 22 Aug 2021 | Flash Flood | — | — | — | — | — | County |
| 22 Aug 2021 | Flash Flood | — | — | — | — | — | County |
| 22 Aug 2021 | Flash Flood | — | — | — | — | — | County |
| 22 Aug 2021 | Flash Flood | — | — | — | — | — | County |
| 22 Aug 2021 | Flash Flood | — | — | — | — | — | County |
| 22 Aug 2021 | Flash Flood | — | — | — | — | — | County |
| 22 Aug 2021 | Flash Flood | — | — | — | — | — | County |
| 22 Aug 2021 | Flash Flood | — | — | — | — | — | County |
| 22 Aug 2021 | Flash Flood | — | — | — | — | — | County |
| 22 Aug 2021 | Flash Flood | — | — | — | — | — | County |
| 22 Aug 2021 | Flash Flood | — | — | — | — | — | County |
| 22 Aug 2021 | Flash Flood | — | — | — | — | — | County |
| 22 Aug 2021 | Flash Flood | — | — | — | — | — | County |
| 29 Jul 2021 | Flash Flood | — | — | — | — | — | County |
| 28 May 2021 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 1 Feb 2021 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 1 Feb 2021 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 17 Dec 2020 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 31 Jul 2020 | Flash Flood | — | — | — | — | — | County |
| 31 Jul 2020 | Flash Flood | — | — | — | — | — | County |
| 24 Jul 2020 | Flash Flood | — | — | — | — | — | County |
| 24 Jul 2020 | Flash Flood | — | — | — | — | — | County |
| 10 Jul 2020 | Flash Flood | — | — | — | — | — | County |
| 7 Aug 2019 | Flash Flood | — | — | — | — | — | County |
| 7 Aug 2019 | Flash Flood | — | — | — | — | — | County |
| 7 Aug 2019 | Flash Flood | — | — | — | — | — | County |
| 7 Aug 2019 | Flash Flood | — | — | — | — | — | County |
| 7 Aug 2019 | Flash Flood | — | — | — | — | — | County |
| 7 Aug 2019 | Flash Flood | — | — | — | — | — | County |
| 7 Aug 2019 | Flash Flood | — | — | — | — | — | County |
| 7 Aug 2019 | Flash Flood | — | — | — | — | — | County |
| 22 Jul 2019 | Flash Flood | — | — | — | — | — | County |
| 22 Jul 2019 | Flash Flood | — | — | — | — | — | County |
| 18 Jul 2019 | Flash Flood | — | — | — | — | — | County |
| 18 Jul 2019 | Flash Flood | — | — | — | — | — | County |
| 17 Jul 2019 | Flash Flood | — | — | — | — | — | County |
| 21 Mar 2019 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 20 Jan 2019 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 25 Nov 2018 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 16 Nov 2018 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 27 Oct 2018 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 18 Sep 2018 | Flash Flood | — | — | — | — | — | County |
| 13 Sep 2018 | Flash Flood | — | — | — | — | — | County |
| 10 Sep 2018 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 10 Sep 2018 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 9 Sep 2018 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 11 Aug 2018 | Flash Flood | — | — | — | — | — | County |
| 11 Aug 2018 | Flash Flood | — | — | — | — | — | County |
| 27 Jul 2018 | Flash Flood | — | — | — | — | — | County |
| 27 Jul 2018 | Flash Flood | — | — | — | — | — | County |
| 27 May 2018 | Flash Flood | — | — | — | — | — | County |
| 27 May 2018 | Flash Flood | — | — | — | — | — | County |
| 17 Apr 2018 | Flood | — | — | — | — | — | County |
| 15 Apr 2018 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 3 Mar 2018 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 11 Feb 2018 | Flood | — | — | — | — | — | County |
| 30 Oct 2017 | Flood | — | $10 | $10 | — | — | County |
| 29 Oct 2017 | Flood | — | $10 | $10 | — | — | County |
| 22 Aug 2017 | Flash Flood | — | — | — | — | — | County |
| 2 Aug 2017 | Flash Flood | — | — | — | — | — | County |
| 2 Aug 2017 | Flood | — | — | — | — | — | County |
| 2 Aug 2017 | Flood | — | — | — | — | — | County |
| 2 Aug 2017 | Flood | — | — | — | — | — | County |
| 2 Aug 2017 | Flood | — | $10 | — | — | — | County |
| 24 Jun 2017 | Flash Flood | — | — | — | — | — | County |
| 24 Jun 2017 | Flood | — | — | — | — | — | County |
| 25 May 2017 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 31 Mar 2017 | Flood | — | — | — | — | — | County |
| 14 Mar 2017 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 30 Jul 2016 | Flood | — | — | — | — | — | County |
| 30 Jul 2016 | Flash Flood | — | — | — | — | — | County |
| 30 Jul 2016 | Flash Flood | — | $100K | — | — | — | County |
| 7 May 2016 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 6 May 2016 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 5 May 2016 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 9 Feb 2016 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 8 Feb 2016 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 23 Jan 2016 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 31 May 2015 | Flash Flood | — | — | — | — | — | County |
| 31 May 2015 | Flash Flood | — | — | — | — | — | County |
| 9 Dec 2014 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 2 Jul 2014 | Flash Flood | — | — | — | — | — | County |
| 2 Jul 2014 | Flash Flood | — | — | — | — | — | County |
| 1 May 2014 | Flood | — | $500K | — | — | — | County |
| 30 Apr 2014 | Flood | — | $500K | — | — | — | County |
| 3 Jan 2014 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 22 Aug 2013 | Flash Flood | — | — | — | — | — | County |
| 7 Mar 2013 | Coastal Flood | — | $10K | — | — | — | Forecast zone |
| 27 Dec 2012 | Flood | — | — | — | — | — | County |
| 27 Dec 2012 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 29 Oct 2012 | Coastal Flood | — | $500M | — | — | — | Forecast zone |
| 9 Aug 2012 | Flash Flood | — | $10K | — | — | — | County |
| 4 Jun 2012 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 8 Sep 2011 | Flood | — | — | — | — | — | County |
| 7 Sep 2011 | Flood | — | — | — | — | — | County |
| 28 Aug 2011 | Flood | — | $50M | — | 1 | — | County |
| 28 Aug 2011 | Flash Flood | — | — | — | — | — | County |
| 17 Apr 2011 | Flood | — | — | — | — | — | County |
| 16 Apr 2011 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 13 Mar 2010 | Coastal Flood | — | $1.0M | — | — | — | Forecast zone |
| 13 Mar 2010 | Flood | — | $100K | — | — | — | County |
| 13 Nov 2009 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 24 Oct 2009 | Flash Flood | — | — | — | — | — | County |
| 16 Oct 2009 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 2 Aug 2009 | Flash Flood | — | — | — | — | — | County |
| 29 Jul 2009 | Flash Flood | — | — | — | — | — | County |
| 22 Jun 2009 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 28 Sep 2008 | Flood | — | — | — | — | — | County |
| 9 Sep 2008 | Flash Flood | — | — | — | — | — | County |
| 6 Sep 2008 | Flood | — | — | — | — | — | County |
| 29 Jun 2008 | Flash Flood | — | — | — | — | — | County |
| 12 May 2008 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 27 Oct 2007 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 8 Aug 2007 | Flood | — | — | — | — | — | County |
| 27 Apr 2007 | Flood | — | — | — | — | — | County |
| 15 Apr 2007 | Flood | — | — | — | 1 | — | County |
| 2 Mar 2007 | Flood | — | — | — | — | — | County |
| 28 Oct 2006 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 6 Oct 2006 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 2 Sep 2006 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 21 Jul 2006 | Flash Flood | — | — | — | — | — | County |
| 12 Feb 2006 | Coastal Flood | — | $50K | — | — | — | Forecast zone |
| 31 Jan 2006 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 3 Jan 2006 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 12 Oct 2005 | Flash Flood | — | — | — | — | — | County |
| 9 Oct 2005 | Flood | — | — | — | — | — | Forecast zone |
| 14 Sep 2005 | Flash Flood | — | — | — | — | — | County |
| 17 Jul 2005 | Flash Flood | — | $10M | — | — | — | County |
| 28 Sep 2004 | Flash Flood | — | — | — | — | — | County |
| 11 Aug 2004 | Flash Flood | — | — | — | — | — | County |
| 25 Jun 2004 | Flash Flood | — | — | — | — | — | County |
| 5 Aug 2003 | Flash Flood | — | $250K | — | — | — | County |
| 22 Jul 2003 | Flash Flood | — | — | — | — | — | County |
| 6 Nov 2002 | Flood | — | — | — | — | — | Forecast zone |
| 2 Aug 2002 | Flood | — | — | — | — | — | County |
| 19 Jul 2002 | Flood | — | — | — | — | — | County |
| 12 Aug 2001 | Flash Flood | — | — | — | — | — | County |
| 17 Jun 2001 | Flash Flood | — | — | — | — | — | County |
| 17 Dec 2000 | Flash Flood | — | — | — | — | — | County |
| 12 Aug 2000 | Flash Flood | — | — | — | — | — | County |
| 16 Sep 1999 | Flash Flood | — | $28M | — | — | 72 | County |
| 26 Aug 1998 | Flash Flood | — | — | — | — | — | County |
| 17 Aug 1998 | Flood | — | — | — | — | — | County |
| 13 Jun 1998 | Flash Flood | — | — | — | — | — | County |
| 11 May 1998 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 1 Apr 1998 | Flash Flood | — | — | — | — | — | County |
| 5 Aug 1997 | Flash Flood | — | — | — | — | — | County |
| 24 Jul 1997 | Flash Flood | — | — | — | — | — | County |
| 13 Dec 1996 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 19 Oct 1996 | Flash Flood | — | $2.7M | — | — | 1 | County |
| 19 Oct 1996 | Coastal Flood | — | — | — | — | — | Forecast zone |
| 31 Jul 1996 | Flash Flood | — | — | — | — | — | County |
| 11 Jun 1996 | Flash Flood | — | — | — | — | — | County |
| 19 Jan 1996 | Flash Flood | — | — | — | — | — | County |
Questions and answers
How many flood events has Middlesex County had?
202 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 Middlesex 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 Middlesex County?
The coastal flood of 29 Oct 2012, with property damage estimated by NCEI at $500M.
How does Middlesex County compare with New Jersey for flood?
65.3 events per 100 square miles against 51.5 statewide; the county holds 202 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.