Hail history for Green County, WI

Green County has 94 recorded hail events in the NOAA Storm Events Database — 72 of them 1″ or larger and 11 at 2″ or larger. The largest on record: 3.0″ (tea cup) on April 7, 2020.

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 94 since 1974

1″ or larger 72 NWS severe threshold

2″ or larger 11 hen egg class and up

Largest recorded 3.0″ tea cup · April 7, 2020

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 Green County

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

Most recent recorded events

Latest 8 of 94 recorded events · data through April 2026
Date	Size	Comparable to
April 17, 2026	1.5″	Ping-pong ball
April 17, 2026	1.25″	Half dollar
April 17, 2026	2.75″	Baseball
March 10, 2026	1.0″	Quarter
August 16, 2025	2.0″	Hen egg
May 15, 2025	1.0″	Quarter
April 18, 2025	1.5″	Ping-pong ball
April 18, 2025	2.0″	Hen egg

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

From the storm reports

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

April 18, 2025 · 2.75″ (baseball)

Measured baseball sized hail.

April 18, 2025 · 2.25″ (tennis ball)

Picture provided.

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
0	0	2	4	17	24	9	38

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 Green County

Has it ever hailed in Green County?

Yes — 94 hail events have been recorded for Green County, WI in the NOAA Storm Events Database since 1974, including 72 of 1″ (quarter size) or larger.

When did it last hail in Green County?

The most recent recorded hail event for Green County, WI is April 17, 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 Green County?

3.0″ (tea cup), recorded on April 7, 2020. 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 Wisconsin hail history

All 72 Wisconsin 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.