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Flood in Coles County, Illinois
56 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 56 flood events in Coles County, Illinois, between 1950 and 2026, spread over 22 years.
June is the busiest month, with 16 of the recorded events. The last 20 years account for 38 events against 18 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 11.0 per 100 square miles compares with 11.7 statewide.
NCEI attributes 2 deaths in the county to floods and flash floods.
Compared with Illinois
| Measure | Coles County | Illinois | US |
|---|---|---|---|
| Flood events since 1950 | 56 | 6,507 | 183,559 |
| Per 100 square miles | 11.0 | 11.7 | 5.2 |
| Per 10,000 residents | 12.0 | 5.1 | 5.5 |
| Deaths recorded | 2 | 61 | 2,961 |
| Busiest month | June | June | June |
By year
Seasonality
1Feb
3Mar
0Apr
8May
14Jun
16Jul
8Aug
3Sep
2Oct
1Nov
0Dec
0
Recorded events
All 56 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 |
|---|---|---|---|---|---|---|---|
| 27 Jun 2026 | Flood | — | — | — | — | — | County |
| 27 Jun 2026 | Flash Flood | — | — | — | — | — | County |
| 21 Jun 2026 | Flood | — | — | — | — | — | County |
| 8 Jun 2026 | Flash Flood | — | — | — | — | — | County |
| 29 Aug 2022 | Flash Flood | — | — | — | — | — | County |
| 3 Aug 2022 | Flash Flood | — | — | — | — | — | County |
| 7 Jul 2022 | Flash Flood | — | — | — | — | — | County |
| 27 Jun 2021 | Flood | — | — | — | — | — | County |
| 11 Jan 2020 | Flood | — | — | — | — | — | County |
| 3 Apr 2018 | Flash Flood | — | $2.0M | — | — | — | County |
| 3 Apr 2018 | Flood | — | — | — | — | — | County |
| 4 May 2017 | Flood | — | — | — | — | — | County |
| 4 May 2017 | Flash Flood | — | — | — | — | — | County |
| 1 May 2017 | Flood | — | — | — | — | — | County |
| 29 Apr 2017 | Flash Flood | — | — | — | — | — | County |
| 29 Apr 2017 | Flood | — | — | — | — | — | County |
| 26 Aug 2016 | Flash Flood | — | — | — | — | — | County |
| 26 Apr 2016 | Flash Flood | — | — | — | — | — | County |
| 19 Jun 2015 | Flash Flood | — | — | — | — | — | County |
| 19 Jun 2015 | Flood | — | — | — | — | — | County |
| 4 Jun 2014 | Flash Flood | — | — | — | — | — | County |
| 22 Jun 2013 | Flash Flood | — | — | — | — | — | County |
| 2 May 2013 | Flash Flood | — | — | — | — | — | County |
| 29 Jul 2011 | Flash Flood | — | — | — | — | — | County |
| 3 Jul 2011 | Flash Flood | — | — | — | — | — | County |
| 27 Jun 2011 | Flash Flood | — | — | — | — | — | County |
| 19 Apr 2011 | Flash Flood | — | — | — | — | — | County |
| 2 Sep 2010 | Flash Flood | — | — | — | — | — | County |
| 15 Jul 2010 | Flash Flood | — | — | — | — | — | County |
| 23 Jun 2010 | Flash Flood | — | — | — | — | — | County |
| 26 May 2010 | Flash Flood | — | — | — | — | — | County |
| 8 Jul 2009 | Flash Flood | — | — | — | — | — | County |
| 14 May 2009 | Flash Flood | — | — | — | — | — | County |
| 11 Feb 2009 | Flood | — | — | — | — | — | County |
| 4 Jun 2008 | Flood | — | $250K | — | 1 | — | County |
| 5 Feb 2008 | Flash Flood | — | — | — | — | — | County |
| 17 Jul 2007 | Flash Flood | — | — | — | — | — | County |
| 23 Jun 2007 | Flash Flood | — | — | — | — | — | County |
| 6 Apr 2006 | Flash Flood | — | — | — | — | — | County |
| 30 May 2004 | Flash Flood | — | — | — | — | — | County |
| 27 May 2004 | Flash Flood | — | — | — | — | — | County |
| 10 May 2003 | Flash Flood | — | — | — | — | — | County |
| 13 Jun 2002 | Flash Flood | — | — | — | — | — | County |
| 27 May 2002 | Flash Flood | — | — | — | — | — | County |
| 12 May 2002 | Flood | — | — | — | — | — | Forecast zone |
| 12 May 2002 | Flash Flood | — | — | — | — | — | County |
| 7 May 2002 | Flash Flood | — | — | — | — | — | County |
| 6 May 2002 | Flash Flood | — | — | — | — | — | County |
| 27 Apr 2002 | Flash Flood | — | — | — | — | — | County |
| 9 Jul 2001 | Flood | — | — | — | 1 | — | Forecast zone |
| 8 Jul 2001 | Flash Flood | — | — | — | — | — | County |
| 9 Feb 2001 | Flash Flood | — | — | — | — | — | County |
| 5 Oct 2000 | Flash Flood | — | — | — | — | — | County |
| 10 Sep 2000 | Flash Flood | — | — | — | — | — | County |
| 24 Jun 2000 | Flash Flood | — | — | — | — | — | County |
| 1 Jun 1999 | Flash Flood | — | $3.0M | — | — | — | County |
Questions and answers
How many flood events has Coles County had?
56 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 Coles County?
27 Jun 2026 (Flash Flood). Records reach NCEI about 120 days after the month ends.
What was the most damaging flood event recorded in Coles County?
The flash flood of 1 Jun 1999, with property damage estimated by NCEI at $3.0M.
How does Coles County compare with Illinois for flood?
11.0 events per 100 square miles against 11.7 statewide; the county holds 56 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.