Hail history for Warren County, OH

Warren County has 127 recorded hail events in the NOAA Storm Events Database — 56 of them 1″ or larger and 5 at 2″ or larger. The largest on record: 4.0″ (softball) on June 30, 1990.

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 127 since 1974

1″ or larger 56 NWS severe threshold

2″ or larger 5 hen egg class and up

Largest recorded 4.0″ softball · June 30, 1990

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 Warren County

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

Most recent recorded events

Latest 8 of 127 recorded events · data through April 2026
Date	Size	Comparable to
June 28, 2025	0.75″	Penny
May 16, 2025	0.88″	Nickel
April 4, 2025	1.0″	Quarter
February 27, 2025	1.0″	Quarter
February 27, 2025	1.0″	Quarter
May 7, 2024	0.75″	Penny
July 18, 2023	1.0″	Quarter
July 18, 2023	1.5″	Ping-pong ball

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

From the storm reports

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

March 14, 2019 · 1.25″ (half dollar)

The hail broke a car windshield and also caused some damage to the siding on a few houses.

June 2, 2009 · 2.0″ (hen egg)

Several reports of hail came in from law enforcement and the public. Up to 2 inch hail fell for 10 minutes on the south end of Springboro.

April 22, 1998 · 1.75″ (golf ball)

A thunderstorm left a path of large hail across the northern part of the county. The hail accumulated several inches deep in spots.

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
0	0	1	0	22	38	46	20

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 Warren County

Has it ever hailed in Warren County?

Yes — 127 hail events have been recorded for Warren County, OH in the NOAA Storm Events Database since 1974, including 56 of 1″ (quarter size) or larger.

When did it last hail in Warren County?

The most recent recorded hail event for Warren County, OH is June 28, 2025, with 0.75″ (penny) 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 Warren County?

4.0″ (softball), recorded on June 30, 1990. 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.