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Flood in Perry County, Illinois
60 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 60 flood events in Perry County, Illinois, between 1950 and 2026, spread over 24 years.
July is the busiest month, with 14 of the recorded events. The last 20 years account for 44 events against 16 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 0.9% of the 6,507 flood events recorded in Illinois; its 13.6 per 100 square miles compares with 11.7 statewide.
Compared with Illinois
| Measure | Perry County | Illinois | US |
|---|---|---|---|
| Flood events since 1950 | 60 | 6,507 | 183,559 |
| Per 100 square miles | 13.6 | 11.7 | 5.2 |
| Per 10,000 residents | 28.6 | 5.1 | 5.5 |
| Deaths recorded | 0 | 61 | 2,961 |
| Busiest month | July | June | June |
By year
Seasonality
3Feb
0Mar
7Apr
6May
9Jun
10Jul
14Aug
5Sep
2Oct
0Nov
0Dec
4
Recorded events
All 60 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 Jul 2024 | Flood | — | — | — | — | — | County |
| 16 Jul 2024 | Flash Flood | — | — | — | — | — | County |
| 16 Jul 2024 | Flash Flood | — | $10K | — | — | — | County |
| 16 Jul 2024 | Flood | — | — | — | — | — | County |
| 12 Jul 2024 | Flash Flood | — | — | — | — | — | County |
| 4 May 2024 | Flash Flood | — | — | — | — | — | County |
| 25 Mar 2023 | Flood | — | — | — | — | — | County |
| 28 Jul 2022 | Flood | — | — | — | — | — | County |
| 30 Aug 2021 | Flash Flood | — | — | — | — | — | County |
| 16 Jul 2021 | Flash Flood | — | — | — | — | — | County |
| 16 Jul 2021 | Flash Flood | — | $30K | — | — | — | County |
| 15 Jul 2020 | Flash Flood | — | — | — | — | — | County |
| 30 Jun 2020 | Flash Flood | — | — | — | — | — | County |
| 19 Mar 2020 | Flash Flood | — | — | — | — | — | County |
| 11 Jan 2020 | Flash Flood | — | — | — | — | — | County |
| 24 Mar 2019 | Flood | — | — | — | — | — | County |
| 15 Dec 2018 | Flood | — | — | — | — | — | County |
| 8 Sep 2018 | Flash Flood | — | $15K | — | — | — | County |
| 28 Jun 2018 | Flash Flood | — | — | — | — | — | County |
| 18 May 2018 | Flood | — | — | — | — | — | County |
| 23 Jun 2017 | Flash Flood | — | — | — | — | — | County |
| 20 May 2017 | Flash Flood | — | — | — | — | — | County |
| 30 Apr 2017 | Flash Flood | — | $30K | — | — | — | County |
| 16 Sep 2016 | Flood | — | — | — | — | — | County |
| 14 Aug 2016 | Flood | — | — | — | — | — | County |
| 13 Aug 2016 | Flash Flood | — | — | — | — | — | County |
| 29 Jul 2016 | Flash Flood | — | $20K | — | — | — | County |
| 11 May 2016 | Flash Flood | — | $10K | — | — | — | County |
| 28 Dec 2015 | Flood | — | — | — | — | — | County |
| 4 Aug 2015 | Flash Flood | — | — | — | — | — | County |
| 19 Jun 2015 | Flash Flood | — | — | — | — | — | County |
| 4 Jun 2014 | Flash Flood | — | — | — | — | — | County |
| 12 Jan 2013 | Flash Flood | — | $10K | — | — | — | County |
| 21 Jun 2011 | Flash Flood | — | — | — | — | — | County |
| 1 May 2011 | Flood | — | $30K | — | — | — | County |
| 25 Apr 2011 | Flash Flood | — | — | — | — | — | County |
| 24 Apr 2011 | Flood | — | — | — | — | — | County |
| 25 Dec 2009 | Flood | — | $5K | — | — | 1 | County |
| 11 Jul 2009 | Flash Flood | — | — | — | — | — | County |
| 11 Jul 2009 | Flash Flood | — | $10K | — | — | — | County |
| 8 May 2009 | Flash Flood | — | — | — | — | — | County |
| 10 Apr 2008 | Flood | — | — | — | — | — | County |
| 31 Mar 2008 | Flash Flood | — | — | — | — | — | County |
| 18 Mar 2008 | Flood | — | $250K | — | — | — | County |
| 12 Mar 2006 | Flash Flood | — | — | — | — | — | County |
| 28 Aug 2004 | Flash Flood | — | — | — | — | — | County |
| 18 Jun 2004 | Flash Flood | — | — | — | — | — | County |
| 25 May 2004 | Flash Flood | — | — | — | — | — | County |
| 28 Mar 2004 | Flash Flood | — | — | — | — | — | County |
| 6 May 2003 | Flash Flood | — | — | — | — | — | County |
| 18 Dec 2002 | Flood | — | — | — | — | — | County |
| 27 Jun 2002 | Flash Flood | — | — | — | — | — | County |
| 8 May 2002 | Flood | — | $7K | — | — | — | County |
| 18 Jul 2001 | Flood | — | — | — | — | — | County |
| 12 Jul 2000 | Flood | — | — | — | — | — | County |
| 16 Jun 2000 | Flash Flood | — | $10K | — | — | — | County |
| 3 Apr 1999 | Flood | — | — | — | — | — | County |
| 21 Jan 1999 | Flash Flood | — | — | — | — | — | County |
| 29 Jun 1998 | Flash Flood | — | $50K | — | — | — | County |
| 28 Apr 1996 | Flash Flood | — | $220K | — | — | — | County |
Questions and answers
How many flood events has Perry County had?
60 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 Perry County?
16 Jul 2024 (Flood). Records reach NCEI about 120 days after the month ends.
What was the most damaging flood event recorded in Perry County?
The flood of 18 Mar 2008, with property damage estimated by NCEI at $250K.
How does Perry County compare with Illinois for flood?
13.6 events per 100 square miles against 11.7 statewide; the county holds 60 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.