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Flood in Massac County, Illinois
126 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 126 flood events in Massac County, Illinois, between 1950 and 2026, spread over 30 years.
March is the busiest month, with 22 of the recorded events. The last 20 years account for 72 events against 54 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 1.9% of the 6,507 flood events recorded in Illinois; its 53.1 per 100 square miles compares with 11.7 statewide.
Compared with Illinois
| Measure | Massac County | Illinois | US |
|---|---|---|---|
| Flood events since 1950 | 126 | 6,507 | 183,559 |
| Per 100 square miles | 53.1 | 11.7 | 5.2 |
| Per 10,000 residents | 90.3 | 5.1 | 5.5 |
| Deaths recorded | 0 | 61 | 2,961 |
| Busiest month | March | June | June |
By year
Seasonality
21Feb
21Mar
22Apr
15May
16Jun
9Jul
6Aug
3Sep
0Oct
0Nov
1Dec
12
Recorded events
All 126 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 |
|---|---|---|---|---|---|---|---|
| 16 May 2025 | Flood | — | — | — | — | — | County |
| 16 Feb 2025 | Flood | — | — | — | — | — | County |
| 15 Feb 2025 | Flood | — | — | — | — | — | County |
| 17 Jul 2024 | Flood | — | — | — | — | — | County |
| 19 Jul 2023 | Flash Flood | — | $250K | — | — | — | County |
| 2 Jan 2023 | Flood | — | — | — | — | — | County |
| 1 Mar 2022 | Flood | — | — | — | — | — | County |
| 22 Feb 2022 | Flood | — | — | — | — | — | County |
| 8 Jan 2022 | Flood | — | — | — | — | — | County |
| 2 Mar 2021 | Flood | — | $3K | — | — | — | County |
| 1 Apr 2020 | Flood | — | — | — | — | — | County |
| 20 Mar 2020 | Flood | — | — | — | — | — | County |
| 9 Feb 2020 | Flood | — | — | — | — | — | County |
| 13 Jan 2020 | Flood | — | — | — | — | — | County |
| 11 Jan 2020 | Flash Flood | — | — | — | — | — | County |
| 1 Jul 2019 | Flood | — | — | — | — | — | County |
| 24 Jun 2019 | Flood | — | — | — | — | — | County |
| 1 Mar 2019 | Flood | — | — | — | — | — | County |
| 10 Feb 2019 | Flood | — | $750K | — | — | — | County |
| 1 Feb 2019 | Flood | — | — | — | — | — | County |
| 26 Jan 2019 | Flood | — | — | — | — | — | County |
| 1 Jan 2019 | Flood | — | — | — | — | — | County |
| 15 Jun 2018 | Flood | — | — | — | — | — | County |
| 1 May 2018 | Flood | — | — | — | — | — | County |
| 1 Apr 2018 | Flood | — | $5K | — | — | — | County |
| 30 Mar 2018 | Flood | — | — | — | — | — | County |
| 1 Mar 2018 | Flood | — | $100K | — | — | — | County |
| 16 Feb 2018 | Flood | — | — | — | — | — | County |
| 1 May 2017 | Flood | — | — | — | — | — | County |
| 30 Apr 2017 | Flood | — | — | — | — | — | County |
| 17 Aug 2016 | Flash Flood | — | $2K | — | — | — | County |
| 5 Aug 2016 | Flash Flood | — | — | — | — | — | County |
| 1 Mar 2016 | Flood | — | $1K | — | — | — | County |
| 25 Feb 2016 | Flood | — | — | — | — | — | County |
| 1 Jan 2016 | Flood | — | $6K | — | — | — | County |
| 26 Dec 2015 | Flood | — | — | — | — | — | County |
| 2 Jul 2015 | Flood | — | — | — | — | — | County |
| 10 Apr 2015 | Flood | — | — | — | — | — | County |
| 9 Mar 2015 | Flood | — | $1K | — | — | — | County |
| 7 Apr 2014 | Flood | — | $5K | — | — | — | County |
| 1 Jan 2014 | Flood | — | — | — | — | — | County |
| 27 Dec 2013 | Flood | — | $1K | — | — | — | County |
| 21 Dec 2013 | Flood | — | $10K | — | — | — | County |
| 1 May 2013 | Flood | — | $2K | — | — | — | County |
| 22 Apr 2013 | Flood | — | — | — | — | — | County |
| 21 Mar 2013 | Flood | — | — | — | — | — | County |
| 6 Feb 2013 | Flood | — | — | — | — | — | County |
| 20 Jan 2013 | Flood | — | — | — | — | — | County |
| 1 Feb 2012 | Flood | — | — | — | — | — | County |
| 27 Jan 2012 | Flood | — | — | — | — | — | County |
| 4 Dec 2011 | Flood | — | — | — | — | — | County |
| 1 Dec 2011 | Flood | — | $1K | — | — | — | County |
| 1 Jun 2011 | Flood | — | — | — | — | — | County |
| 1 May 2011 | Flood | — | $30K | — | — | — | County |
| 1 May 2011 | Flood | — | $2.0M | — | — | — | County |
| 24 Apr 2011 | Flood | — | — | — | — | — | County |
| 12 Apr 2011 | Flood | — | — | — | — | — | County |
| 1 Mar 2011 | Flood | — | $200K | — | — | — | County |
| 28 Feb 2011 | Flood | — | — | — | — | — | County |
| 3 May 2010 | Flood | — | — | — | — | — | County |
| 21 Mar 2010 | Flood | — | — | — | — | — | County |
| 1 Feb 2010 | Flood | — | — | — | — | — | County |
| 26 Jan 2010 | Flood | — | — | — | — | — | County |
| 5 May 2009 | Flood | — | — | $20K | — | — | County |
| 3 Apr 2008 | Flash Flood | — | — | — | — | — | County |
| 1 Apr 2008 | Flood | — | — | — | — | — | County |
| 18 Mar 2008 | Flood | — | $500K | — | — | — | County |
| 8 Mar 2008 | Flood | — | $1K | — | — | — | County |
| 11 Feb 2008 | Flood | — | — | — | — | — | County |
| 5 Jul 2007 | Flash Flood | — | $10K | — | — | — | County |
| 29 Jun 2007 | Flash Flood | — | — | — | — | — | County |
| 14 Jan 2007 | Flood | — | — | — | — | — | County |
| 9 Mar 2006 | Flash Flood | — | — | — | — | — | County |
| 27 Jan 2006 | Flood | — | — | — | — | — | Forecast zone |
| 1 Apr 2005 | Flood | — | — | — | — | — | Forecast zone |
| 5 Jan 2005 | Flood | — | $50K | — | — | — | Forecast zone |
| 3 Dec 2004 | Flood | — | — | — | — | — | Forecast zone |
| 18 Jun 2004 | Flash Flood | — | — | — | — | — | County |
| 1 Jun 2004 | Flood | — | — | — | — | — | Forecast zone |
| 9 Mar 2004 | Flood | — | — | — | — | — | Forecast zone |
| 8 Feb 2004 | Flood | — | — | — | — | — | Forecast zone |
| 5 Jan 2004 | Flood | — | — | — | — | — | Forecast zone |
| 7 May 2003 | Flood | — | — | — | — | — | Forecast zone |
| 6 May 2003 | Flash Flood | — | — | — | — | — | County |
| 4 May 2003 | Flash Flood | — | — | — | — | — | County |
| 1 Mar 2003 | Flood | — | — | — | — | — | Forecast zone |
| 18 Feb 2003 | Flood | — | — | — | — | — | Forecast zone |
| 17 May 2002 | Flash Flood | — | — | — | — | — | County |
| 1 May 2002 | Flood | — | $10K | — | — | — | Forecast zone |
| 1 Apr 2002 | Flood | — | — | — | — | — | Forecast zone |
| 20 Mar 2002 | Flood | — | — | — | — | — | Forecast zone |
| 1 Feb 2002 | Flood | — | — | — | — | — | Forecast zone |
| 26 Jan 2002 | Flood | — | — | — | — | — | Forecast zone |
| 18 Dec 2001 | Flood | — | — | — | — | — | Forecast zone |
| 17 Dec 2001 | Flood | — | — | — | — | — | Forecast zone |
| 17 Dec 2001 | Flash Flood | — | $10K | — | — | — | County |
| 1 Dec 2001 | Flood | — | — | — | — | — | Forecast zone |
| 19 Feb 2001 | Flood | — | — | — | — | — | Forecast zone |
| 3 Jan 2000 | Flash Flood | — | $10K | — | — | — | County |
| 3 Apr 1999 | Flash Flood | — | — | — | — | — | County |
| 9 Mar 1999 | Flood | — | — | — | — | — | Forecast zone |
| 1 Feb 1999 | Flood | — | $5K | — | — | — | Forecast zone |
| 22 Jan 1999 | Flood | — | — | — | — | — | Forecast zone |
| 7 Aug 1998 | Flood | — | — | — | — | — | County |
| 15 Jun 1998 | Flood | — | — | — | — | — | Forecast zone |
| 1 May 1998 | Flood | — | — | — | — | — | Forecast zone |
| 1 Apr 1998 | Flood | — | — | — | — | — | Forecast zone |
| 22 Mar 1998 | Flood | — | — | — | — | — | Forecast zone |
| 11 Jan 1998 | Flood | — | — | — | — | — | Forecast zone |
| 1 Jun 1997 | Flood | — | — | — | — | — | Forecast zone |
| 28 May 1997 | Flash Flood | — | $10K | — | — | — | County |
| 1 Mar 1997 | Flash Flood | — | — | — | — | — | County |
| 1 Mar 1997 | Flash Flood | — | $50K | — | — | — | County |
| 1 Mar 1997 | Flood | — | — | — | — | — | Forecast zone |
| 28 Feb 1997 | Flood | — | — | — | — | — | County |
| 1 Feb 1997 | Flood | — | — | — | — | — | Forecast zone |
| 30 Jan 1997 | Flood | — | — | — | — | — | Forecast zone |
| 19 Dec 1996 | Flood | — | — | — | — | — | Forecast zone |
| 4 Dec 1996 | Flood | — | — | — | — | — | Forecast zone |
| 7 Nov 1996 | Flash Flood | — | $5K | — | — | — | County |
| 30 Jul 1996 | Flood | — | — | — | — | — | County |
| 1 Jun 1996 | Flood | — | — | — | — | — | Forecast zone |
| 1 May 1996 | Flood | — | — | — | — | — | Forecast zone |
| 26 Apr 1996 | Flood | — | — | — | — | — | Forecast zone |
| 1 Feb 1996 | Flood | — | — | — | — | — | Forecast zone |
| 26 Jan 1996 | Flood | — | $5K | — | — | — | Forecast zone |
Questions and answers
How many flood events has Massac County had?
126 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 Massac County?
16 May 2025 (Flood). Records reach NCEI about 120 days after the month ends.
What was the most damaging flood event recorded in Massac County?
The flood of 1 May 2011, with property damage estimated by NCEI at $2.0M.
How does Massac County compare with Illinois for flood?
53.1 events per 100 square miles against 11.7 statewide; the county holds 126 of the state's 6,507 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.