Hail history for Allegany County, MD

Allegany County has 86 recorded hail events in the NOAA Storm Events Database — 74 of them 1″ or larger and 9 at 2″ or larger. The largest on record: 2.75″ (baseball) on May 26, 2011.

Records 1950–present Data through April 2026 Peak month May

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 86 since 1960

1″ or larger 74 NWS severe threshold

2″ or larger 9 hen egg class and up

Largest recorded 2.75″ baseball · May 26, 2011

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 Allegany County

Recorded events by month, 1950–present. The amber bar marks Allegany County's peak: May.

Most recent recorded events

Latest 8 of 86 recorded events · data through April 2026
Date	Size	Comparable to
May 1, 2025	1.0″	Quarter
May 1, 2025	1.75″	Golf ball
May 1, 2025	1.5″	Ping-pong ball
May 1, 2025	1.0″	Quarter
May 1, 2025	1.0″	Quarter
May 1, 2025	1.0″	Quarter
May 1, 2025	1.5″	Ping-pong ball
May 1, 2025	1.0″	Quarter

Looking for a specific storm? Use the did-it-hail date lookup for Allegany County.

From the storm reports

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

May 1, 2025 · 1.0″ (quarter)

Quarter size hail was observed near the intersection of Alexander Street and East Main Street.

May 26, 2011 · 2.75″ (baseball)

Baseball sized hail was reported near Little Orleans.

May 26, 2011 · 2.5″ (tennis ball)

Tennis ball sized hail covered a patio and produced minor roof damage near Bellegrove.

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
0	2	1	0	9	11	50	13

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 Allegany County

Has it ever hailed in Allegany County?

Yes — 86 hail events have been recorded for Allegany County, MD in the NOAA Storm Events Database since 1960, including 74 of 1″ (quarter size) or larger.

When did it last hail in Allegany County?

The most recent recorded hail event for Allegany County, MD is May 1, 2025, with 1.0″ (quarter) 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 Allegany County?

2.75″ (baseball), recorded on May 26, 2011. 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.