Hail history for Allegan County, MI

Allegan County has 77 recorded hail events in the NOAA Storm Events Database — 42 of them 1″ or larger and 4 at 2″ or larger. The largest on record: 4.0″ (softball) on October 23, 1955.

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 77 since 1955

1″ or larger 42 NWS severe threshold

2″ or larger 4 hen egg class and up

Largest recorded 4.0″ softball · October 23, 1955

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 Allegan County

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

Most recent recorded events

Latest 8 of 77 recorded events · data through April 2026
Date	Size	Comparable to
April 4, 2023	1.75″	Golf ball
April 4, 2023	2.0″	Hen egg
April 4, 2023	1.0″	Quarter
April 7, 2020	1.75″	Golf ball
April 7, 2020	2.0″	Hen egg
April 7, 2020	1.75″	Golf ball
August 3, 2017	1.75″	Golf ball
April 25, 2016	1.75″	Golf ball

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

From the storm reports

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

April 4, 2023 · 2.0″ (hen egg)

Hail up to two inches in diameter was reported by trained spotters.

April 4, 2023 · 1.0″ (quarter)

Hail up to an inch in diameter was reported near Glenn.

April 7, 2020 · 2.0″ (hen egg)

Very large hail to two inches in diameter was reported near Plainwell.

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
1	2	3	5	12	32	16	6

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 Allegan County

Has it ever hailed in Allegan County?

Yes — 77 hail events have been recorded for Allegan County, MI in the NOAA Storm Events Database since 1955, including 42 of 1″ (quarter size) or larger.

When did it last hail in Allegan County?

The most recent recorded hail event for Allegan County, MI is April 4, 2023, with 1.75″ (golf 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 Allegan County?

4.0″ (softball), recorded on October 23, 1955. 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 Michigan hail history

All 83 Michigan 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.