Hail history for Hamilton County, OH

Hamilton County has 210 recorded hail events in the NOAA Storm Events Database — 118 of them 1″ or larger and 5 at 2″ or larger. The largest on record: 2.75″ (baseball) on July 2, 1997.

Records 1950–present Data through April 2026 Peak month April

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 210 since 1960

1″ or larger 118 NWS severe threshold

2″ or larger 5 hen egg class and up

Largest recorded 2.75″ baseball · July 2, 1997

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 Hamilton County

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

Most recent recorded events

Latest 8 of 210 recorded events · data through April 2026
Date	Size	Comparable to
March 30, 2025	1.0″	Quarter
April 2, 2024	1.0″	Quarter
April 2, 2024	0.88″	Nickel
July 24, 2023	1.0″	Quarter
July 24, 2023	1.0″	Quarter
July 2, 2023	1.25″	Half dollar
July 2, 2023	1.0″	Quarter
March 1, 2023	0.88″	Nickel

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

From the storm reports

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

July 24, 2023 · 1.0″ (quarter)

One inch diameter hail was reported at Lunken Airport.

March 1, 2017 · 2.0″ (hen egg)

Hail of 1 to 2 inches in diameter was reported in the Harrison area.

July 2, 1997 · 2.75″ (baseball)

Hail as large as baseballs fell across the southwestern part of the county. Windows and roofs were destroyed on numerous cars. Several buildings were damaged including an area greenhouse which had its roof destroyed.

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
0	3	5	15	31	35	97	24

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 Hamilton County

Has it ever hailed in Hamilton County?

Yes — 210 hail events have been recorded for Hamilton County, OH in the NOAA Storm Events Database since 1960, including 118 of 1″ (quarter size) or larger.

When did it last hail in Hamilton County?

The most recent recorded hail event for Hamilton County, OH is March 30, 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 Hamilton County?

2.75″ (baseball), recorded on July 2, 1997. 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 Ohio hail history

All 88 Ohio 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.