194
Recorded events
0
Direct deaths
0
Direct injuries
$50K
Property damage
Flood in Frederick County, Maryland: 194 recorded events between 2007 and 2025. The strongest on record measured 0. That places the county #11 nationally and #1 statewide for this hazard.
Decade by decade
Flood in Frederick County, Maryland: events per decade
Reporting practice changed over time — early decades are undercounted, not calmer.
The busiest decade for flood in Frederick County is the 2010s, when 120 of the county's 194 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 Frederick County archive, flood makes up 18.1% of all recorded severe weather across 10 hazard types. Nationally the county sits at #11 for this hazard and #1 within Maryland, putting it in the 99.7 percentile of all U.S. counties.
Seasonality
Events by month
Sep is the peak month for flood in Frederick County with 64 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 |
|---|---|---|---|
| May 15, 2025 | TUSCARORA | 0 | $0 |
| Dec 23, 2022 | EMMITSBURG | 0 | $0 |
| Dec 23, 2022 | LIME KILN | 0 | $0 |
| May 7, 2022 | EMMITSBURG | 0 | $0 |
| May 7, 2022 | PEARL | 0 | $0 |
| May 7, 2022 | MOTTERS | 0 | $0 |
| May 6, 2022 | CREAGERSTOWN | 0 | $0 |
| May 6, 2022 | ST ANTHONY | 0 | $0 |
| May 6, 2022 | EMMITSBURG | 0 | $0 |
| May 6, 2022 | EMMITSBURG | 0 | $0 |
Other hazards here
More from Frederick County
- Thunderstorm Wind 617
- Flash Flood 91
- Hail 86
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
Multiple reports of flooding continued overnight in Frederick Maryland. These reports include road closures at Stauffer Road at Israel Creek and English Muffin Way at Lime Kiln Way. Also, flooding continued at Frederick High School, Lincoln Elementary School and Thomas Johnson High School.
The Potomac River At Point of Rocks river gauge reach minor flood stage on May 14, 2025. Water levels at the Point of Rocks river gauge continue to rise eventually cresting in moderate flood stage at 23.56 feet. Here are the impacts experienced at this these levels At 16 feet, the parking lots at both the McKimmey and Brunswick boat ramps begin to flood. Flooding of an agricultural field adjacent to the McKimmey boat ramp is occurring. About half the lower parking lot of the Point of Rocks boat ramp is also flooded. At 17 feet, water enters the comfort station at the Brunswick boat ramp parking area. At 18 feet, water approaches structures at the Brunswick campground. At 20 feet, The boat ramp and lower parking lot at Point of Rocks are flooded. Water approaches the water treatment plant in Brunswick. Farmland behind the Tarara Vineyard is flooded. At 22 feet, water begins to cover the C&O Canal towpath near Point of Rocks and Brunswick.
The stream gage on the Monocacy River near Frederick, MD (FDKM2) indicated that flooding occurred during the specified timeframe, reaching a peak crest of 17.67 ft on May 8th around 12:45 AM EST. At this level much of Pinecliff Park and Rivermist Park in Frederick are flooded. Buckeystown Community Park is also flooded with water approaching the parking lot. Waters are also approaching the Frederick city wastewater treatment plant and the Ballenger Creek wastewater treatment plant. Significant backwater flooding is occurring. Several roads will be closed along the river and adjoining creeks. Additionally, a stream gage upstream (FRMM2) also indicated flooding, reaching a peak crest of 20.73 feet around 11:00 PM EST. Impacts for this gage are essentially the same, as it is located just upstream from FDKM2.
Quick answers
Frequently asked
How many flood events are on record in Frederick County, Maryland?
194 flood events are recorded in Frederick County between 2007 and 2025, causing 0 direct deaths.
What is the strongest flood recorded in Frederick County?
The strongest flood on record in Frederick County measured 0.
Where does the flood data for Frederick 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 Frederick County, Maryland.” Severe Weather History. severeweatherhistory.com/county/maryland/frederick-county/flood/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.