60
Recorded events
0
Direct deaths
0
Direct injuries
$60.0M
Property damage
Flash Flood in Bronx County, New York: 60 recorded events between 1996 and 2025. The strongest on record measured 0. That places the county #461 nationally and #30 statewide for this hazard.
Decade by decade
Flash Flood in Bronx County, New York: events per decade
Reporting practice changed over time — early decades are undercounted, not calmer.
The busiest decade for flash flood in Bronx County is the 2000s, when 24 of the county's 60 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 Bronx County archive, flash flood makes up 39.7% of all recorded severe weather across 7 hazard types. Nationally the county sits at #461 for this hazard and #30 within New York, putting it in the 84.9 percentile of all U.S. counties.
Seasonality
Events by month
Sep is the peak month for flash flood in Bronx County with 21 recorded events, while Jan 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 |
|---|---|---|---|
| Oct 30, 2025 | SPUYTEN DUYVIL | 0 | $0 |
| Jul 15, 2025 | HARLEM RIVER | 0 | $0 |
| Jul 14, 2025 | BRONX | 0 | $0 |
| Aug 6, 2024 | SPUYTEN DUYVIL | 0 | $0 |
| Aug 6, 2024 | NEW YORK NORTHERN | 0 | $0 |
| Sep 29, 2023 | HARLEM RIVER | 0 | $0 |
| Jul 18, 2022 | FORDHAM | 0 | $0 |
| Jul 18, 2022 | BRONX | 0 | $0 |
| Sep 2, 2021 | WILLIAMS BRIDGE | 0 | $0 |
| Sep 2, 2021 | WILLIAMS BRIDGE | 0 | $0 |
Other hazards here
More from Bronx County
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
The Bronx River at the New York Botanical Garden rose above its minor flood stage of 3.0 feet at 10:15pm EDT. It then continued to quickly rise, surpassing moderate flood stage (3.5 feet) at 10:45pm EDT and major flood stage (4.0 feet) at 11:30pm EDT. The river ultimately crested at a height of 5.59 feet at 8:45am EDT on September 2nd. It eventually fell back below minor flood stage at 9:30pm EDT on September 2nd.
The Bronx River at the New York Botanical Garden exceeded its flood stage of 3.0 feet at 2:00pm EDT. The river then proceeded to rise above its moderate flood stage of 3.5 feet at 3:15pm EDT and above its major flood stage of 4.0 feet at 5:45pm, cresting at a height of 4.16 feet at 8:30pm EDT. The river fell back below flood stage at 4:15am EDT on September 26th.
Flooding caused a one story building to partially collapse with people trapped in it at 3rd Ave. and East 182nd St. in East Tremont. Local media reported that there were no injuries, but the fire department determined that the remaining portion of the structure was too unstable and had to be demolished.
Quick answers
Frequently asked
How many flash flood events are on record in Bronx County, New York?
60 flash flood events are recorded in Bronx County between 1996 and 2025, causing 0 direct deaths.
What is the strongest flash flood recorded in Bronx County?
The strongest flash flood on record in Bronx County measured 0.
Where does the flash flood data for Bronx 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 Bronx County, New York.” Severe Weather History. severeweatherhistory.com/county/new-york/bronx-county/flash-flood/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.