Hail history for Harford County, MD

Harford County has 84 recorded hail events in the NOAA Storm Events Database — 61 of them 1″ or larger and 3 at 2″ or larger. The largest on record: 2.75″ (baseball) on June 18, 1970.

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 84 since 1970

1″ or larger 61 NWS severe threshold

2″ or larger 3 hen egg class and up

Largest recorded 2.75″ baseball · June 18, 1970

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 Harford County

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

Most recent recorded events

Latest 8 of 84 recorded events · data through April 2026
Date	Size	Comparable to
September 6, 2025	1.0″	Quarter
September 6, 2025	1.5″	Ping-pong ball
May 3, 2025	1.25″	Half dollar
May 3, 2025	1.5″	Ping-pong ball
May 3, 2025	1.75″	Golf ball
September 7, 2023	1.0″	Quarter
April 1, 2023	1.5″	Ping-pong ball
July 12, 2022	1.0″	Quarter

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

From the storm reports

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

September 6, 2025 · 1.5″ (ping-pong ball)

Ping pong ball size hail was reported south of Bel Air.

May 3, 2025 · 1.75″ (golf ball)

Golf ball size hail was reported near Pleasant Hills.

August 18, 2011 · 2.25″ (tennis ball)

Large hail 2.25 inches in diameter was reported.

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
0	0	2	2	10	34	25	11

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 Harford County

Has it ever hailed in Harford County?

Yes — 84 hail events have been recorded for Harford County, MD in the NOAA Storm Events Database since 1970, including 61 of 1″ (quarter size) or larger.

When did it last hail in Harford County?

The most recent recorded hail event for Harford County, MD is September 6, 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 Harford County?

2.75″ (baseball), recorded on June 18, 1970. 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.