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Flood in Delaware County, Indiana
76 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.
Delaware County, Indiana, has 76 flood events in the NCEI record since 1950, with at least one in 23 different years.
July is the busiest month, with 17 of the recorded events. The last 20 years account for 41 events against 35 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 1.2% of the 6,083 flood events recorded in Indiana; its 19.4 per 100 square miles compares with 17.0 statewide.
Compared with Indiana
| Measure | Delaware County | Indiana | US |
|---|---|---|---|
| Flood events since 1950 | 76 | 6,083 | 183,559 |
| Per 100 square miles | 19.4 | 17.0 | 5.2 |
| Per 10,000 residents | 6.8 | 8.9 | 5.5 |
| Deaths recorded | 0 | 83 | 2,961 |
| Busiest month | July | June | June |
By year
Seasonality
10Feb
4Mar
6Apr
4May
7Jun
10Jul
17Aug
7Sep
5Oct
1Nov
2Dec
3
Recorded events
All 76 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 |
|---|---|---|---|---|---|---|---|
| 26 Jul 2025 | Flash Flood | — | $25K | — | — | — | County |
| 4 Apr 2025 | Flash Flood | — | $50K | — | — | — | County |
| 17 Jul 2022 | Flash Flood | — | $25K | — | — | — | County |
| 11 Dec 2021 | Flood | — | — | — | — | — | County |
| 3 Aug 2020 | Flood | — | $2K | — | — | — | County |
| 28 Mar 2020 | Flash Flood | — | $25K | — | — | — | County |
| 10 Jul 2019 | Flash Flood | — | $30K | — | — | — | County |
| 10 Jul 2019 | Flash Flood | — | $1K | — | — | — | County |
| 10 Jul 2019 | Flash Flood | — | $3K | — | — | — | County |
| 10 Jul 2019 | Flash Flood | — | $2K | $10K | — | — | County |
| 25 Apr 2019 | Flood | — | $5K | — | — | — | County |
| 7 Feb 2019 | Flash Flood | — | $30K | — | — | — | County |
| 7 Sep 2018 | Flash Flood | — | $1K | — | — | — | County |
| 20 Jul 2018 | Flood | — | $8K | — | — | — | County |
| 20 Jul 2018 | Flood | — | $2K | — | — | — | County |
| 5 Nov 2017 | Flood | — | $1K | — | — | — | County |
| 5 Nov 2017 | Flash Flood | — | $5K | — | — | — | County |
| 24 May 2017 | Flood | — | $3K | — | — | — | County |
| 28 Aug 2016 | Flash Flood | — | $1K | — | — | — | County |
| 28 Aug 2016 | Flash Flood | — | $60K | — | — | — | County |
| 13 Aug 2016 | Flash Flood | — | $2K | — | — | — | County |
| 7 Jul 2015 | Flash Flood | — | $2K | — | — | — | County |
| 26 Jun 2015 | Flash Flood | — | $5K | — | — | — | County |
| 26 Jun 2015 | Flash Flood | — | $50K | — | — | — | County |
| 26 Jun 2015 | Flash Flood | — | $5K | — | — | — | County |
| 26 Jun 2015 | Flash Flood | — | $3K | — | — | — | County |
| 22 Dec 2013 | Flash Flood | — | $20K | — | — | — | County |
| 22 Dec 2013 | Flash Flood | — | $5K | — | — | — | County |
| 13 Jun 2013 | Flood | — | $1K | — | — | — | County |
| 24 Jul 2012 | Flood | — | $500 | — | — | — | County |
| 13 Aug 2011 | Flood | — | $500 | — | — | — | County |
| 6 Jan 2009 | Flood | — | — | — | — | — | County |
| 12 Jul 2008 | Flash Flood | — | $1K | — | — | — | County |
| 4 Jun 2008 | Flood | — | $5K | $5K | — | — | County |
| 19 Mar 2008 | Flood | — | $20K | — | — | — | County |
| 6 Feb 2008 | Flood | — | $10K | — | — | — | County |
| 9 Jan 2008 | Flood | — | $10K | — | — | — | County |
| 23 Mar 2007 | Flood | — | $1K | — | — | — | County |
| 23 Mar 2007 | Flood | — | $20K | — | — | — | County |
| 2 Mar 2007 | Flood | — | $1K | — | — | — | County |
| 15 Jan 2007 | Flood | — | $5K | — | — | — | County |
| 24 Sep 2005 | Flash Flood | — | — | — | — | — | County |
| 11 Aug 2005 | Flash Flood | — | — | — | — | — | County |
| 11 Aug 2005 | Flash Flood | — | — | — | — | — | County |
| 28 Jun 2005 | Flash Flood | — | — | — | — | — | County |
| 12 Jun 2005 | Flash Flood | — | — | — | — | — | County |
| 11 May 2005 | Flash Flood | — | — | — | — | — | County |
| 12 Jan 2005 | Flash Flood | — | — | — | — | — | County |
| 4 Jan 2005 | Flood | — | $25K | — | — | — | Forecast zone |
| 3 Jan 2005 | Flood | — | — | — | — | — | Forecast zone |
| 5 Jan 2004 | Flood | — | — | — | — | — | Forecast zone |
| 4 Jan 2004 | Flood | — | — | — | — | — | Forecast zone |
| 1 Sep 2003 | Flood | — | $2.5M | — | — | — | Forecast zone |
| 1 Sep 2003 | Flood | — | $5.0M | — | — | — | Forecast zone |
| 1 Sep 2003 | Flood | — | — | — | — | — | Forecast zone |
| 8 Jul 2003 | Flash Flood | — | — | — | — | — | County |
| 7 Jul 2003 | Flood | — | — | — | — | — | Forecast zone |
| 7 Jul 2003 | Flash Flood | — | — | — | — | — | County |
| 5 Jul 2003 | Flash Flood | — | — | — | — | — | County |
| 10 May 2003 | Flash Flood | — | — | — | — | — | County |
| 9 Jul 2002 | Flood | — | — | — | — | — | County |
| 13 May 2002 | Flood | — | $83K | — | — | — | Forecast zone |
| 12 May 2002 | Flash Flood | — | $50K | — | — | — | County |
| 12 May 2002 | Flash Flood | — | $50K | — | — | — | County |
| 1 Feb 2002 | Flood | — | — | — | — | — | Forecast zone |
| 24 Oct 2001 | Flood | — | — | — | — | — | Forecast zone |
| 22 Jan 1999 | Flood | — | $1.7M | — | — | — | Forecast zone |
| 21 Jan 1999 | Flood | — | $375K | — | — | — | Forecast zone |
| 22 Jul 1998 | Flood | — | — | — | — | — | County |
| 12 Jun 1998 | Flood | — | — | — | — | — | Forecast zone |
| 11 Jun 1998 | Flood | — | — | — | — | — | County |
| 29 May 1998 | Flood | — | — | — | — | — | County |
| 9 Apr 1998 | Flash Flood | — | — | — | — | — | County |
| 9 Apr 1998 | Flood | — | — | — | — | — | Forecast zone |
| 14 Mar 1997 | Flood | — | — | — | — | — | Forecast zone |
| 27 Feb 1997 | Flood | — | — | — | — | — | Forecast zone |
Questions and answers
How many flood events has Delaware County had?
76 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 Delaware County?
26 Jul 2025 (Flash Flood). Records reach NCEI about 120 days after the month ends.
What was the most damaging flood event recorded in Delaware County?
The flood of 1 Sep 2003, with property damage estimated by NCEI at $5.0M.
How does Delaware County compare with Indiana for flood?
19.4 events per 100 square miles against 17.0 statewide; the county holds 76 of the state's 6,083 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.