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Flood in Morris County, New Jersey
149 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.
Morris County, New Jersey, has 149 flood events in the NCEI record since 1950, with at least one in 29 different years.
August is the busiest month, with 23 of the recorded events. The last 20 years account for 96 events against 53 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 3.9% of the 3,787 flood events recorded in New Jersey; its 32.3 per 100 square miles compares with 51.5 statewide.
NCEI attributes 2 deaths in the county to floods and flash floods.
Compared with New Jersey
| Measure | Morris County | New Jersey | US |
|---|---|---|---|
| Flood events since 1950 | 149 | 3,787 | 183,559 |
| Per 100 square miles | 32.3 | 51.5 | 5.2 |
| Per 10,000 residents | 2.9 | 4.1 | 5.5 |
| Deaths recorded | 2 | 61 | 2,961 |
| Busiest month | August | July | June |
By year
Seasonality
8Feb
4Mar
14Apr
8May
7Jun
19Jul
19Aug
23Sep
14Oct
12Nov
3Dec
18
Recorded events
All 149 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 |
|---|---|---|---|---|---|---|---|
| 23 Jun 2026 | Flash Flood | — | — | — | — | — | County |
| 31 Jul 2025 | Flash Flood | — | — | — | — | — | County |
| 14 Jul 2025 | Flash Flood | — | — | — | — | — | County |
| 14 Jul 2025 | Flash Flood | — | — | — | — | — | County |
| 14 May 2025 | Flash Flood | — | — | — | — | — | County |
| 18 Aug 2024 | Flash Flood | — | — | — | — | — | County |
| 18 Aug 2024 | Flash Flood | — | — | — | — | — | County |
| 18 Aug 2024 | Flash Flood | — | — | — | — | — | County |
| 18 Aug 2024 | Flash Flood | — | — | — | — | — | County |
| 10 Jan 2024 | Flood | — | — | — | — | — | County |
| 1 Jan 2024 | Flood | — | — | — | — | — | County |
| 28 Dec 2023 | Flood | — | — | — | — | — | County |
| 28 Dec 2023 | Flood | — | — | — | — | — | County |
| 18 Dec 2023 | Flood | — | — | — | — | — | County |
| 18 Dec 2023 | Flood | — | $100K | — | — | — | County |
| 14 Jul 2023 | Flash Flood | — | — | — | — | — | County |
| 26 Jun 2023 | Flash Flood | — | — | — | — | — | County |
| 26 Jun 2023 | Flash Flood | — | — | — | — | — | County |
| 1 Jun 2022 | Flash Flood | — | — | — | — | — | County |
| 1 Sep 2021 | Flash Flood | — | $10M | — | — | — | County |
| 22 Aug 2021 | Flash Flood | — | — | — | — | — | County |
| 10 Jul 2020 | Flash Flood | — | — | — | — | — | County |
| 6 Jul 2020 | Flash Flood | — | — | — | — | — | County |
| 6 Jul 2020 | Flash Flood | — | — | — | — | — | County |
| 22 Jul 2019 | Flash Flood | — | — | — | — | — | County |
| 2 Oct 2018 | Flash Flood | — | — | — | — | — | County |
| 11 Aug 2018 | Flash Flood | — | — | — | — | — | County |
| 11 Aug 2018 | Flash Flood | — | — | — | — | — | County |
| 4 Aug 2018 | Flash Flood | — | — | — | — | — | County |
| 3 Jul 2018 | Flash Flood | — | — | — | — | — | County |
| 17 Apr 2018 | Flood | — | — | — | — | — | County |
| 16 Apr 2018 | Flood | — | — | — | — | — | County |
| 29 Oct 2017 | Flood | — | $10 | $10 | — | — | County |
| 29 Oct 2017 | Flood | — | — | — | — | — | County |
| 16 Sep 2017 | Flood | — | — | — | — | — | County |
| 2 Aug 2017 | Flood | — | — | — | — | — | County |
| 2 Aug 2017 | Flash Flood | — | — | — | — | — | County |
| 17 Jul 2017 | Flood | — | — | — | — | — | County |
| 7 Jul 2017 | Flood | — | — | — | — | — | County |
| 24 Jun 2017 | Flood | — | — | — | — | — | County |
| 13 Jun 2014 | Flash Flood | — | — | — | — | — | County |
| 1 May 2014 | Flood | — | $1.3M | — | — | — | County |
| 30 Apr 2014 | Flood | — | $1.3M | — | — | — | County |
| 22 Aug 2013 | Flash Flood | — | — | — | — | — | County |
| 28 Jul 2013 | Flash Flood | — | — | — | — | — | County |
| 1 Jul 2013 | Flash Flood | — | — | — | — | — | County |
| 18 Jun 2013 | Flash Flood | — | $10K | — | — | — | County |
| 14 Jun 2013 | Flood | — | — | — | — | — | County |
| 14 Jun 2013 | Flood | — | — | — | — | — | County |
| 8 Jun 2013 | Flood | — | — | — | — | — | County |
| 23 May 2013 | Flash Flood | — | — | — | — | — | County |
| 31 Jan 2013 | Flood | — | — | — | — | — | County |
| 21 Dec 2012 | Flood | — | — | — | — | — | County |
| 18 Sep 2012 | Flood | — | — | — | — | — | County |
| 18 Jul 2012 | Flash Flood | — | — | — | — | — | County |
| 7 Dec 2011 | Flood | — | — | — | — | — | County |
| 23 Nov 2011 | Flood | — | — | — | — | — | County |
| 28 Sep 2011 | Flash Flood | — | — | — | — | — | County |
| 6 Sep 2011 | Flood | — | $1.0M | — | — | — | County |
| 1 Sep 2011 | Flood | — | — | — | — | — | County |
| 28 Aug 2011 | Flood | — | $200M | — | 1 | — | County |
| 27 Aug 2011 | Flash Flood | — | — | — | — | — | County |
| 15 Aug 2011 | Flash Flood | — | — | — | — | — | County |
| 14 Aug 2011 | Flash Flood | — | — | — | — | — | County |
| 14 Aug 2011 | Flood | — | — | — | — | — | County |
| 9 Aug 2011 | Flood | — | — | — | — | — | County |
| 8 Jul 2011 | Flash Flood | — | — | — | — | — | County |
| 23 Jun 2011 | Flash Flood | — | — | — | — | — | County |
| 18 May 2011 | Flood | — | — | — | — | — | County |
| 18 May 2011 | Flash Flood | — | — | — | — | — | County |
| 16 Apr 2011 | Flood | — | $250K | — | — | — | County |
| 10 Mar 2011 | Flood | — | — | — | — | — | County |
| 7 Mar 2011 | Flood | — | $11M | — | — | — | County |
| 6 Mar 2011 | Flood | — | — | — | — | — | County |
| 25 Feb 2011 | Flood | — | — | — | — | — | County |
| 1 Oct 2010 | Flood | — | — | — | — | — | County |
| 30 Sep 2010 | Flood | — | — | — | — | — | County |
| 1 Apr 2010 | Flood | — | — | — | — | — | County |
| 29 Mar 2010 | Flood | — | — | — | — | — | County |
| 23 Mar 2010 | Flood | — | — | — | — | — | County |
| 13 Mar 2010 | Flood | — | $15M | — | — | — | County |
| 25 Jan 2010 | Flood | — | — | — | — | — | County |
| 27 Dec 2009 | Flood | — | — | — | — | — | County |
| 2 Aug 2009 | Flash Flood | — | — | — | — | — | County |
| 12 Dec 2008 | Flood | — | — | — | — | — | County |
| 9 Sep 2008 | Flash Flood | — | — | — | — | — | County |
| 6 Sep 2008 | Flood | — | — | — | — | — | County |
| 8 Mar 2008 | Flash Flood | — | $100K | — | — | — | County |
| 8 Mar 2008 | Flood | — | — | — | — | — | County |
| 5 Mar 2008 | Flood | — | — | — | — | — | County |
| 18 Feb 2008 | Flood | — | — | — | — | — | County |
| 13 Feb 2008 | Flood | — | — | — | — | — | County |
| 23 Dec 2007 | Flood | — | — | — | — | — | County |
| 8 Aug 2007 | Flash Flood | — | $50K | — | — | — | County |
| 15 Apr 2007 | Flood | — | $26M | — | — | — | County |
| 2 Mar 2007 | Flood | — | — | — | — | — | County |
| 9 Nov 2006 | Flood | — | — | — | — | — | County |
| 28 Oct 2006 | Flood | — | — | — | — | — | County |
| 22 Jul 2006 | Flash Flood | — | — | — | — | — | County |
| 18 Jan 2006 | Flood | — | — | — | — | — | County |
| 16 Dec 2005 | Flood | — | — | — | — | — | County |
| 12 Oct 2005 | Flash Flood | — | — | — | — | — | County |
| 12 Oct 2005 | Flood | — | — | — | — | — | Forecast zone |
| 9 Oct 2005 | Flood | — | — | — | — | — | Forecast zone |
| 8 Oct 2005 | Flash Flood | — | — | — | — | — | County |
| 14 Sep 2005 | Flash Flood | — | — | — | — | — | County |
| 1 Apr 2005 | Flood | — | $1.0M | — | — | — | Forecast zone |
| 29 Mar 2005 | Flood | — | — | — | — | — | Forecast zone |
| 29 Sep 2004 | Flood | — | — | — | — | — | Forecast zone |
| 28 Sep 2004 | Flash Flood | — | — | — | — | — | County |
| 18 Sep 2004 | Flash Flood | — | — | — | — | — | County |
| 23 Jul 2004 | Flash Flood | — | — | — | — | — | County |
| 24 Dec 2003 | Flood | — | — | — | — | — | Forecast zone |
| 11 Dec 2003 | Flood | — | — | — | — | — | Forecast zone |
| 20 Nov 2003 | Flood | — | — | — | — | — | Forecast zone |
| 29 Oct 2003 | Flood | — | — | — | — | — | Forecast zone |
| 11 Aug 2003 | Flash Flood | — | — | — | — | — | County |
| 9 Aug 2003 | Flash Flood | — | — | — | — | — | County |
| 21 Jun 2003 | Flood | — | — | — | — | — | Forecast zone |
| 13 Jun 2003 | Flood | — | — | — | — | — | Forecast zone |
| 4 Jun 2003 | Flood | — | — | — | — | — | Forecast zone |
| 1 Jun 2003 | Flood | — | — | — | — | — | Forecast zone |
| 25 Mar 2003 | Flood | — | — | — | — | — | Forecast zone |
| 21 Mar 2003 | Flood | — | — | — | — | — | Forecast zone |
| 23 Feb 2003 | Flood | — | — | — | — | — | Forecast zone |
| 13 May 2002 | Flash Flood | — | — | — | — | — | County |
| 17 Jun 2001 | Flash Flood | — | — | — | — | — | County |
| 17 Dec 2000 | Flash Flood | — | — | — | — | — | County |
| 12 Aug 2000 | Flash Flood | — | $12M | — | — | — | County |
| 11 Jun 2000 | Flash Flood | — | — | — | — | — | County |
| 16 Sep 1999 | Flash Flood | — | $30M | — | — | 6 | County |
| 22 Mar 1999 | Flash Flood | — | — | — | — | — | County |
| 17 Aug 1998 | Flood | — | — | — | — | — | County |
| 14 Jun 1998 | Flash Flood | — | — | — | — | — | County |
| 13 Jun 1998 | Flood | — | — | — | — | — | County |
| 10 May 1998 | Flood | — | — | — | — | — | Forecast zone |
| 10 Apr 1998 | Flood | — | — | — | — | — | Forecast zone |
| 24 Jul 1997 | Flash Flood | — | — | — | — | — | County |
| 15 Dec 1996 | Flood | — | — | — | — | — | Forecast zone |
| 15 Dec 1996 | Flood | — | — | — | — | — | Forecast zone |
| 6 Dec 1996 | Flood | — | — | — | — | — | Forecast zone |
| 2 Dec 1996 | Flood | — | — | — | — | — | Forecast zone |
| 2 Dec 1996 | Flash Flood | — | — | — | — | — | County |
| 19 Oct 1996 | Flood | — | — | — | — | — | Forecast zone |
| 19 Oct 1996 | Flash Flood | — | $1.0M | — | — | — | County |
| 13 Jul 1996 | Flood | — | — | — | — | — | Forecast zone |
| 27 Jan 1996 | Flood | — | — | — | 1 | — | Forecast zone |
| 19 Jan 1996 | Flood | — | $200K | — | — | — | Forecast zone |
| 19 Jan 1996 | Flash Flood | — | — | — | — | — | County |
Questions and answers
How many flood events has Morris County had?
149 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 Morris County?
23 Jun 2026 (Flash Flood). Records reach NCEI about 120 days after the month ends.
What was the most damaging flood event recorded in Morris County?
The flood of 28 Aug 2011, with property damage estimated by NCEI at $200M; 1 death recorded.
How does Morris County compare with New Jersey for flood?
32.3 events per 100 square miles against 51.5 statewide; the county holds 149 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.