Hail history for St. Mary's County, MD

St. Mary's County has 80 recorded hail events in the NOAA Storm Events Database — 53 of them 1″ or larger and 4 at 2″ or larger. The largest on record: 2.75″ (baseball) on June 13, 2013.

Records 1950–present Data through April 2026 Peak month June

Core sample · every recorded event, 1955–2026

Mark size = measured hail diameter; slivers are events with no recorded size. Amber ≥2″, red ≥2.75″ (baseball class). Denser recent decades partly reflect better reporting, not only more storms.

Recorded events 80 since 1962

1″ or larger 53 NWS severe threshold

2″ or larger 4 hen egg class and up

Largest recorded 2.75″ baseball · June 13, 2013

Read the record honestly: Storm Events contains what was reported to the National Weather Service. Sparse or rural counties under-report, and coverage improved sharply after the mid-1990s — a quiet-looking stretch is not proof nothing fell.

When it hails in St. Mary's County

Recorded events by month, 1950–present. The amber bar marks St. Mary's County's peak: June.

Most recent recorded events

Latest 8 of 80 recorded events · data through April 2026
Date	Size	Comparable to
May 22, 2025	1.25″	Half dollar
May 22, 2025	1.0″	Quarter
May 22, 2025	1.0″	Quarter
May 22, 2025	1.0″	Quarter
September 7, 2023	1.0″	Quarter
April 6, 2023	1.0″	Quarter
April 6, 2023	1.75″	Golf ball
April 6, 2023	1.75″	Golf ball

Looking for a specific storm? Use the did-it-hail date lookup for St. Mary's County.

From the storm reports

Narratives as filed with the NOAA Storm Events Database (public records; lightly trimmed for length).

May 22, 2025 · 1.0″ (quarter)

Quarter size hail accumulated on the ground near California.

April 6, 2023 · 1.75″ (golf ball)

There were multiple reports of golf ball size hail between Charlotte Hall and Hughesville.

August 19, 2009 · 2.75″ (baseball)

Ping pong to baseball size hail was reported near Society Hill.

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
0	4	0	5	14	22	19	16

The climb across decades is largely a reporting story: spotter networks, radar, and digital filing pulled far more storms into the record after the 1990s.

Questions about hail in St. Mary's County

Has it ever hailed in St. Mary's County?

Yes — 80 hail events have been recorded for St. Mary's County, MD in the NOAA Storm Events Database since 1962, including 53 of 1″ (quarter size) or larger.

When did it last hail in St. Mary's County?

The most recent recorded hail event for St. Mary's County, MD is May 22, 2025, with 1.25″ (half dollar) hail. The database is currently updated through April 2026, so a storm from the last few weeks may not appear yet. To check a specific day, use the did-it-hail date lookup.

What is the largest hail ever recorded in St. Mary's County?

2.75″ (baseball), recorded on June 13, 2013. Hail that size is destructive-class and typically damages roofs, vehicles, and siding. See how big that really is on the actual-size hail chart.

Does a recorded hail event mean my roof was damaged?

No. This page reports storm records, not damage. Hail size and damage vary block by block within a county, and only an inspection can establish what happened to a specific roof. If you suspect damage, talk to your insurer or a licensed roofer — they can pull the same NOAA records for your claim.

More Maryland hail history

All 24 Maryland counties, ranked by recorded hail →

Source: NOAA/NCEI Storm Events Database, public domain, updated monthly by NCEI — this site's copy runs through April 2026. HailHistory reports records; it does not give insurance advice or assess damage.