Hail history for Boone County, IN

Boone County has 129 recorded hail events in the NOAA Storm Events Database — 77 of them 1″ or larger and 6 at 2″ or larger. The largest on record: 2.75″ (baseball) on September 18, 1972.

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 129 since 1955

1″ or larger 77 NWS severe threshold

2″ or larger 6 hen egg class and up

Largest recorded 2.75″ baseball · September 18, 1972

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 Boone County

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

Most recent recorded events

Latest 8 of 129 recorded events · data through April 2026
Date	Size	Comparable to
April 14, 2026	1.5″	Ping-pong ball
April 2, 2025	0.75″	Penny
March 19, 2025	2.0″	Hen egg
March 19, 2025	1.0″	Quarter
May 24, 2024	1.0″	Quarter
May 24, 2024	0.75″	Penny
March 14, 2024	1.0″	Quarter
March 14, 2024	1.75″	Golf ball

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

From the storm reports

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

June 25, 2023 · 2.5″ (tennis ball)

Thunderstorm hail continued into far northeastern Boone County, with hailstones as large as tennis balls.

June 25, 2023 · 2.0″ (hen egg)

Thunderstorm hail as large as hen eggs fell across far northern Boone County from Mechanicsburg and east.

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
1	1	4	7	10	31	49	26

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 Boone County

Has it ever hailed in Boone County?

Yes — 129 hail events have been recorded for Boone County, IN in the NOAA Storm Events Database since 1955, including 77 of 1″ (quarter size) or larger.

When did it last hail in Boone County?

The most recent recorded hail event for Boone County, IN is April 14, 2026, with 1.5″ (ping-pong ball) 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 Boone County?

2.75″ (baseball), recorded on September 18, 1972. 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 Indiana hail history

All 92 Indiana 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.