Maryland

Storm History: Saint Mary's County, Maryland

681 episodes, 1,060 events since 1962

Every storm the National Weather Service has filed in Saint Mary's County, Maryland: floods, hail, damaging wind, tornadoes, winter storms, heat and the rest, with the most serious on record. Events filed by forecast zone count for every county the zone covers.

The record

Events
1,060
Deaths
3
Injuries
168
Damage
$111 million
Episodes
681

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

Open the live radar over Saint Mary's County

Every year

From 1996 the record holds 48 kinds of event with each office’s narrative; before that, tornadoes, hail and thunderstorm wind only, and before 1955 tornadoes alone.

By kind of event

Counted under the kind that heads each episode.

Kind of eventEventsDeathsInjuriesDamage
Thunderstorm Wind17003$6.0 million
Hail15900$754,000
Tornado148110$6.2 million
Flash Flood11400$690,000
Coastal Flood8000
Flood5900$469,000
Heat5620
Dense Fog5300
Winter Storm5300
Winter Weather3400
Excessive Heat2400
Frost/Freeze1900
High Wind1500$1.5 million
Drought1200$1.7 million
Extreme Cold/Wind Chill1000
Strong Wind900$3,000
Heavy Rain900
Heavy Snow800
Blizzard600$15,000
Tropical Storm60154$91 million
Lightning400$50,000
Storm Surge/Tide400$3.4 million
Ice Storm400
Cold/Wind Chill300$3,000
Dust Devil101$1,000

The deadliest

The costliest

Damage within this county, in the dollars of its year.

The largest hail

The largest stone in each episode, which may have fallen in a neighboring county of the same episode.

The strongest tornadoes

Every tornado in Saint Mary's County, with its track

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in Saint Mary's CountyEvery warning in Saint Mary's County since 1986Every county in Maryland

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24.