95
Recorded events
0
Direct deaths
0
Direct injuries
$18.9M
Property damage
Flash Flood in Beaver County, Pennsylvania: 95 recorded events between 1996 and 2025. The strongest on record measured 0. That places the county #187 nationally and #18 statewide for this hazard.
Decade by decade
Flash Flood in Beaver County, Pennsylvania: events per decade
Reporting practice changed over time — early decades are undercounted, not calmer.
The busiest decade for flash flood in Beaver County is the 2010s, when 44 of the county's 95 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 Beaver County archive, flash flood makes up 11.3% of all recorded severe weather across 8 hazard types. Nationally the county sits at #187 for this hazard and #18 within Pennsylvania, putting it in the 94.0 percentile of all U.S. counties.
Seasonality
Events by month
Jun is the peak month for flash flood in Beaver County with 26 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.
Most recent
Latest recorded events
| Date | Location | Magnitude | Damage |
|---|---|---|---|
| Aug 14, 2025 | KNOB | 0 | $5K |
| Jun 7, 2025 | AMBRIDGE | 0 | $5K |
| Jun 7, 2025 | DAVIDSON HGTS | 0 | $5K |
| Apr 12, 2024 | FRISCO | 0 | $1K |
| Apr 12, 2024 | FALLSTON | 0 | $1K |
| Apr 11, 2024 | INDUSTRY | 0 | $1K |
| Apr 2, 2024 | BARRISVILLE | 0 | $1K |
| Jul 21, 2023 | STOBO | 0 | $0 |
| Jul 21, 2023 | SOUTH HGTS | 0 | $0 |
| Aug 29, 2022 | FREEDOM | 0 | $0 |
Other hazards here
More from Beaver County
- Thunderstorm Wind 502
- Hail 153
- Flood 51
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
A retired NWS employee reported flash flooding in Aliquippa, Monaca, and surrounding towns from rainfall of 3 to over 4 inches in 2 hours. Over 500 buildings and homes sustained damage across Beaver county with around 50 families displaced from homes.
Over 1.5 inches of rain from thunderstorms produced minor flooding across the county. A portion of Freedom-Crider Road near Park Quarry Road was closed due to a small mudslide. Route 51 near Monaca was restricted to one lane by a mudslide. A mudslide was also reported on Route 68 near the Shippingport Bridge. Street flooding was reported in downtown Beaver. In addition, the Beaver County 911 Center received dozens of calls of flooded basements.
Routes 30 and 51 in Monaca closed by 3 feet of flood waters. Several cars were stranded and under water on Route 51. Many basements flooded in Rochester. In Beaver, there was a mud slide from River Road onto the railroad tracks.
Quick answers
Frequently asked
How many flash flood events are on record in Beaver County, Pennsylvania?
95 flash flood events are recorded in Beaver County between 1996 and 2025, causing 0 direct deaths.
What is the strongest flash flood recorded in Beaver County?
The strongest flash flood on record in Beaver County measured 0.
Where does the flash flood data for Beaver 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 Beaver County, Pennsylvania.” Severe Weather History. severeweatherhistory.com/county/pennsylvania/beaver-county/flash-flood/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.