46
Recorded events
1
Direct deaths
0
Direct injuries
$6.8M
Property damage
Flash Flood in Cayuga County, New York: 46 recorded events between 1996 and 2026. The strongest on record measured 0. That places the county #681 nationally and #39 statewide for this hazard.
Decade by decade
Flash Flood in Cayuga County, New York: events per decade
Reporting practice changed over time — early decades are undercounted, not calmer.
The busiest decade for flash flood in Cayuga County is the 2020s, when 18 of the county's 46 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 Cayuga County archive, flash flood makes up 8.7% of all recorded severe weather across 8 hazard types. Nationally the county sits at #681 for this hazard and #39 within New York, putting it in the 77.6 percentile of all U.S. counties.
Seasonality
Events by month
Jul is the peak month for flash flood in Cayuga County with 16 recorded events, while Sep 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.
Significant events
Deadliest on record
| Date | Location | Scale | Deaths | Injuries | Damage |
|---|---|---|---|---|---|
| Jan 19, 1996 | COUNTYWIDE | 0 | 1 | 0 | $1.4M |
Most recent
Latest recorded events
| Date | Location | Magnitude | Damage |
|---|---|---|---|
| Mar 31, 2026 | EAST GENOA | — | $5K |
| Jun 10, 2025 | THROOPSVILLE | 0 | $15K |
| May 6, 2025 | NILES | 0 | $20K |
| May 6, 2025 | NILES | 0 | $1K |
| May 6, 2025 | MONTVILLE | 0 | $5K |
| May 6, 2025 | NEW HOPE | 0 | $5K |
| May 6, 2025 | NILES | 0 | $1K |
| Jul 15, 2024 | MONTVILLE | 0 | $0 |
| Oct 26, 2021 | MORAVIA | 0 | $150K |
| Oct 26, 2021 | MORAVIA | 0 | $50K |
Other hazards here
More from Cayuga County
- Thunderstorm Wind 358
- Hail 93
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
Widespread flash flooding of most creeks and urbanized areas occurred throughout the town of Genoa. Many residents were evacuated from their homes in low lying areas. The US Post Office in the village was inundated by flood waters. Culverts and roads were washed out in several places.
Water rapidly rushed through Moravia, NY along Mill Creek and into the Owasco Lake Inlet. A dozen structures in the heart of the village experienced minor to moderate flood damage. One structure was heavily damaged by flooding. The Owasco Inlet crested at 9.44 feet which was near record flooding.
Widespread flash flooding of most creeks and urbanized areas occurred throughout Moravia. Many residents were evacuated from their homes in low lying areas. Culverts and roads were washed out in many locations. Public and private infrastructure damage was extensive.
Quick answers
Frequently asked
How many flash flood events are on record in Cayuga County, New York?
46 flash flood events are recorded in Cayuga County between 1996 and 2026, causing 1 direct deaths.
What is the strongest flash flood recorded in Cayuga County?
The strongest flash flood on record in Cayuga County measured 0.
Where does the flash flood data for Cayuga 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 Cayuga County, New York.” Severe Weather History. severeweatherhistory.com/county/new-york/cayuga-county/flash-flood/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.