44
Recorded events
0
Direct deaths
0
Direct injuries
$592K
Property damage
Flash Flood in Knox County, Indiana: 44 recorded events between 1996 and 2026. The strongest on record measured 0. That places the county #723 nationally and #8 statewide for this hazard.
Decade by decade
Flash Flood in Knox County, Indiana: events per decade
Reporting practice changed over time — early decades are undercounted, not calmer.
The busiest decade for flash flood in Knox County is the 2010s, when 18 of the county's 44 recorded events were logged. Comparing decades is useful for spotting active periods, but the earliest years are thin because systematic reporting for this hazard began later.
Within the Knox County archive, flash flood makes up 7.9% of all recorded severe weather across 8 hazard types. Nationally the county sits at #723 for this hazard and #8 within Indiana, putting it in the 76.0 percentile of all U.S. counties.
Seasonality
Events by month
May is the peak month for flash flood in Knox County with 12 recorded events, while Mar is the quietest. Seasonality here is a property of the archive as much as the climate: reports cluster where population and spotter networks are densest.
Most recent
Latest recorded events
| Date | Location | Magnitude | Damage |
|---|---|---|---|
| Apr 27, 2026 | VINCENNES | — | $0 |
| Jul 27, 2025 | OAKTOWN | 0 | $10K |
| Apr 5, 2025 | MONROE CITY | 0 | $50K |
| Aug 7, 2023 | WAYMANSVILLE | 0 | $50K |
| Jul 25, 2022 | VINCENNES ONEAL ARPT | 0 | $100K |
| Feb 7, 2019 | BICKNELL | 0 | $25K |
| Sep 8, 2018 | WHEATLAND | 0 | $1K |
| Sep 8, 2018 | OAKTOWN | 0 | $500 |
| Sep 8, 2018 | VINCENNES | 0 | $500 |
| Sep 8, 2018 | VINCENNES | 0 | $1K |
Other hazards here
More from Knox County
- Thunderstorm Wind 289
- Hail 97
- Flood 90
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
A road was washed out by heavy rains along Pine Bluff Road with numerous other roads with high water across the county. Several vehicles were stranded on State Road 67 near Church Road with water rescues conducted. Rainfall amounted to over 6 inches in spots with the highest report north of Vincennes at 6.54 inches.
Several strong to severe cells produced very heavy rain over north-central portions of Knox County, where 2.50 to 4.50 inches fell, with 4.13 measured from the same maximum rain axis at the Plainville 1.3 S CoCoRaHS site in northwestern Daviess County. Standing water was widespread along and near Indiana Route 67 between Bruceville and Edwardsport, with water in several basements.
Quick answers
Frequently asked
How many flash flood events are on record in Knox County, Indiana?
44 flash flood events are recorded in Knox County between 1996 and 2026, causing 0 direct deaths.
What is the strongest flash flood recorded in Knox County?
The strongest flash flood on record in Knox County measured 0.
Where does the flash flood data for Knox County come from?
All events come from the NOAA/NCEI Storm Events Database, the federal public-domain archive of severe weather reports. Dates are UTC, damage is as reported and not inflation-adjusted, and the most recent entries may still be revised.
Cite this page
“Flash Flood in Knox County, Indiana.” Severe Weather History. severeweatherhistory.com/county/indiana/knox-county/flash-flood/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.