186
Recorded events
0
Direct deaths
0
Direct injuries
$50K
Property damage
Flood in Montgomery County, Maryland: 186 recorded events between 2006 and 2025. The strongest on record measured 0. That places the county #13 nationally and #2 statewide for this hazard.
Decade by decade
Flood in Montgomery County, Maryland: events per decade
Reporting practice changed over time — early decades are undercounted, not calmer.
The busiest decade for flood in Montgomery County is the 2010s, when 108 of the county's 186 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 Montgomery County archive, flood makes up 11.6% of all recorded severe weather across 8 hazard types. Nationally the county sits at #13 for this hazard and #2 within Maryland, putting it in the 99.6 percentile of all U.S. counties.
Seasonality
Events by month
Sep is the peak month for flood in Montgomery County with 40 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 |
|---|---|---|---|
| Jul 1, 2025 | PARKWOOD | 0 | $0 |
| May 15, 2025 | TRAVILAH | 0 | $0 |
| May 15, 2025 | WHITES FERRY | 0 | $0 |
| Aug 9, 2024 | BRIGHTON | 0 | $0 |
| Aug 9, 2024 | NORTHWEST PARK | 0 | $0 |
| Jan 28, 2024 | BYFORDE | 0 | $0 |
| Jan 10, 2024 | SENECA | 0 | $0 |
| Jan 10, 2024 | WHEATON HILLS | 0 | $0 |
| Jan 9, 2024 | PARKWOOD | 0 | $0 |
| Dec 18, 2023 | BRIGHTON | 0 | $0 |
Other hazards here
More from Montgomery County
- Thunderstorm Wind 880
- Flash Flood 241
- Hail 191
- Lightning 42
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
The Northwest Branch rose out of its banks at Route 29. Water covered Old Georgetown Road and Battery Lane near Huntington, MD. More than a dozen water rescues occurred across the county when people became trapped in their cars when trying to cross a flooded roadway. One such rescue was conducted in Germantown along Game Preserve Road.
The stream gage on the Potomac River at Edwards Ferry exceeded the 15 foot flood stage during the times indicated. The peak level of 17.87 feet was observed at 12:15pm EST on May 20th. Low-lying areas near Whites Ferry were covered by water, along with the boat ramp and lower parking area at Edwards Ferry. Near the time of peak flow, water entered the store at Whites Ferry.
The water level along the Turkey Branch at Rockville rose above flood stage of 10 feet, cresting at 11.35 feet at 3:00 AM on the 1st of September. Water approached the intersection of Turkey Branch Parkway and Danvers Street, and the intersection of Turkey Branch Parkway and Grenoble.
Quick answers
Frequently asked
How many flood events are on record in Montgomery County, Maryland?
186 flood events are recorded in Montgomery County between 2006 and 2025, causing 0 direct deaths.
What is the strongest flood recorded in Montgomery County?
The strongest flood on record in Montgomery County measured 0.
Where does the flood data for Montgomery 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
“Flood in Montgomery County, Maryland.” Severe Weather History. severeweatherhistory.com/county/maryland/montgomery-county/flood/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.