336
Recorded events
0
Direct deaths
9
Direct injuries
$7.3M
Property damage
Thunderstorm Wind in St. Mary's County, Maryland: 336 recorded events between 1963 and 2026. The strongest on record measured 89. That places the county #340 nationally and #11 statewide for this hazard.
Decade by decade
Thunderstorm Wind in St. Mary's County, Maryland: events per decade
Reporting practice changed over time — early decades are undercounted, not calmer.
The busiest decade for thunderstorm wind in St. Mary's County is the 2010s, when 127 of the county's 336 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 St. Mary's County archive, thunderstorm wind makes up 51.9% of all recorded severe weather across 9 hazard types. Nationally the county sits at #340 for this hazard and #11 within Maryland, putting it in the 89.3 percentile of all U.S. counties.
Seasonality
Events by month
Jun is the peak month for thunderstorm wind in St. Mary's County with 104 recorded events, while Dec 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 |
|---|---|---|---|---|---|
| Aug 17, 1994 | Compton | 0 | 0 | 5 | $0 |
| Jul 3, 1987 | 0 | 0 | 3 | $0 | |
| May 22, 2001 | CLEMENTS | 0 | 0 | 1 | $40K |
Most recent
Latest recorded events
| Date | Location | Magnitude | Damage |
|---|---|---|---|
| Apr 1, 2026 | LNRDTWN ST MARYS ARP | 52 | $1K |
| Mar 16, 2026 | LEONARDTOWN | 56 | $20K |
| Jul 9, 2025 | PARK HALL ARPT | 52 | $2K |
| Jul 8, 2025 | CHINGVILLE | 52 | $2K |
| Jul 8, 2025 | (NHK)NAS PATUXENT RI | 67 | $0 |
| Jul 8, 2025 | LEXINGTON PARK | 56 | $2K |
| Jul 8, 2025 | CALLAWAY | 56 | $2K |
| Jul 1, 2025 | PARK HALL ARPT | 52 | $2K |
| Jul 1, 2025 | HOLLYWOOD | 52 | $2K |
| Jul 1, 2025 | GREAT MILLS | 52 | $10K |
Other hazards here
More from St. Mary's County
- Flood 85
- Hail 80
- Flash Flood 72
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
Hundreds of trees blew down around Charlotte Hall, Golden Beach, and Mechanicsville. Many trees blew down onto houses and cars. Numerous trees blew down along Golden Beach Road and on northbound MD-5 Leonardtown Road near Charlotte Hall and Golden Beach. Numerous trees blew down on MD-6 New Market Turner Road between Four Seasons Court and Flora Corner Road. Large trees blew down near the intersection of MD-6 New Market Turner Road and Lockes Hill Road. Dozens of trees blew down around Mechanicsville, with one trapping a sherriff.
St. Mary's County Emergency Management reported 2 homes damaged along Mount Chance Farm Lane in Clements. One home sustained shingle damage and broken windows. A tree also fell onto a vehicle. A second home sustained chimney damage. Extensive damage was reported to a 50' by 72' tobacco barn. The roof collapsed on top of the farm truck and combine as well as numerous other pieces of farm equipment. Also, several large cedar trees were downed on the property. A nearby automated observation at St. Inigoes measured a wind gust of 50 knots.
St. Mary's County Emergency Management reported 3 homes damaged along Wheeler Farm Lane in Chaptico. Each home sustained shingle and siding damage. A boat overturned in one yard. A tobacco barn was completely destroyed. A nearby automated observation at St. Inigoes measured a wind gust of 50 knots.
Quick answers
Frequently asked
How many thunderstorm wind events are on record in St. Mary's County, Maryland?
336 thunderstorm wind events are recorded in St. Mary's County between 1963 and 2026, causing 0 direct deaths.
What is the strongest thunderstorm wind recorded in St. Mary's County?
The strongest thunderstorm wind on record in St. Mary's County measured 89.
Where does the thunderstorm wind data for St. Mary's 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
“Thunderstorm Wind in St. Mary’s County, Maryland.” Severe Weather History. severeweatherhistory.com/county/maryland/st-marys-county/thunderstorm-wind/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.