84
Recorded events
13
Direct deaths
2
Direct injuries
$331.7M
Property damage
Flash Flood in Delaware County, New York: 84 recorded events between 1996 and 2025. The strongest on record measured 0. That places the county #244 nationally and #14 statewide for this hazard.
Decade by decade
Flash Flood in Delaware County, New York: events per decade
Reporting practice changed over time — early decades are undercounted, not calmer.
The busiest decade for flash flood in Delaware County is the 2020s, when 29 of the county's 84 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 Delaware County archive, flash flood makes up 15.3% of all recorded severe weather across 8 hazard types. Nationally the county sits at #244 for this hazard and #14 within New York, putting it in the 92.1 percentile of all U.S. counties.
Seasonality
Events by month
Jun is the peak month for flash flood in Delaware County with 22 recorded events, while Feb 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 | 6 | 0 | $9.3M |
| Jun 19, 2007 | COLCHESTER | 0 | 4 | 0 | $30.0M |
| Jun 27, 2006 | COUNTYWIDE | 0 | 2 | 0 | $250.0M |
| Aug 28, 2011 | FLEISCHMANNS | 0 | 1 | 0 | $5.0M |
| Nov 9, 1996 | COUNTYWIDE | 0 | 0 | 2 | $500K |
Most recent
Latest recorded events
| Date | Location | Magnitude | Damage |
|---|---|---|---|
| Jul 14, 2025 | HANCOCK BIRCH ARPT | 0 | $10K |
| Jun 22, 2025 | TROUT CREEK | 0 | $2K |
| Jun 22, 2025 | YOUNGS | 0 | $2K |
| Jun 7, 2025 | ROXBURY | 0 | $2K |
| Jun 7, 2025 | GRAND GORGE | 0 | $2K |
| Jun 7, 2025 | HOBART | 0 | $2K |
| Jun 7, 2025 | STAMFORD | 0 | $2K |
| May 4, 2025 | WALTON | 0 | $5K |
| Aug 9, 2024 | DOWNSVILLE | 0 | $125K |
| Aug 9, 2024 | ANDES | 0 | $5K |
Other hazards here
More from Delaware County
- Thunderstorm Wind 318
- Hail 107
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
Catastrophic flash flooding occurred through the town of Fleischmanns. Homes were washed off foundations, slamming into other homes. Over 200 people were evacuated before the flash flood hit. Some people who did not evacuate had to be rescued. One woman was killed when the building she was in collapsed due to the flood waters.
Heavy rain with amounts of 4 to 6 inches caused flash flooding. The rain which fell from the 16th to the 18th was due to the remnants of hurricane Ivan. Most streams and creeks went out of their banks. In addition the east and west branches of the Delaware River and the Beaver Kill had major flooding. 7 people were rescued by a New York State Police helicopter that NWS Binghamton recommended to be put into use. 26 homes were destroyed with another 60 with major damage and 60 more with minor damage. 15 businesses were affected. 2 campgrounds were destroyed. This was the worst flooding since hurricane Diane in 1955.
Heavy rain from thunderstorms caused significant flash flooding. All roads in the towns of Andes, Stamford and Middletown were closed, and States of Emergency were declared. The flash flooding caused up to 10 million dollars worth of damage to roads and bridges.
Quick answers
Frequently asked
How many flash flood events are on record in Delaware County, New York?
84 flash flood events are recorded in Delaware County between 1996 and 2025, causing 13 direct deaths.
What is the strongest flash flood recorded in Delaware County?
The strongest flash flood on record in Delaware County measured 0.
Where does the flash flood data for Delaware 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 Delaware County, New York.” Severe Weather History. severeweatherhistory.com/county/new-york/delaware-county/flash-flood/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.