Hail history for Genesee County, MI

Genesee County has 215 recorded hail events in the NOAA Storm Events Database — 103 of them 1″ or larger and 8 at 2″ or larger. The largest on record: 3.0″ (tea cup) on May 25, 1994.

Records 1950–present Data through April 2026 Peak month July

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 215 since 1961

1″ or larger 103 NWS severe threshold

2″ or larger 8 hen egg class and up

Largest recorded 3.0″ tea cup · May 25, 1994

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 Genesee County

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

Most recent recorded events

Latest 8 of 215 recorded events · data through April 2026
Date	Size	Comparable to
May 15, 2025	0.88″	Nickel
March 15, 2025	0.75″	Penny
May 17, 2024	1.25″	Half dollar
July 20, 2023	2.5″	Tennis ball
July 20, 2023	0.75″	Penny
July 20, 2023	2.5″	Tennis ball
July 20, 2023	2.75″	Baseball
July 20, 2023	1.75″	Golf ball

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

From the storm reports

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

July 20, 2023 · 2.75″ (baseball)

Reports of baseball size hail in Davison.

May 25, 1994 · 3.0″ (tea cup)

A supercell thunderstorm produced large hail in both southern Shiawassee and Southern Genesee Counties. In both Linden and Fenton of southern Genesee County, the hail fell for at least 10 minutes, causing serious damage to two fruit orchards in these communities.

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
0	12	2	14	22	107	42	16

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 Genesee County

Has it ever hailed in Genesee County?

Yes — 215 hail events have been recorded for Genesee County, MI in the NOAA Storm Events Database since 1961, including 103 of 1″ (quarter size) or larger.

When did it last hail in Genesee County?

The most recent recorded hail event for Genesee County, MI is May 15, 2025, with 0.88″ (nickel) 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 Genesee County?

3.0″ (tea cup), recorded on May 25, 1994. 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.