Hail history for Marathon County, WI

Marathon County has 221 recorded hail events in the NOAA Storm Events Database — 122 of them 1″ or larger and 6 at 2″ or larger. The largest on record: 3.0″ (tea cup) on July 13, 2024.

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 221 since 1962

1″ or larger 122 NWS severe threshold

2″ or larger 6 hen egg class and up

Largest recorded 3.0″ tea cup · July 13, 2024

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 Marathon County

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

Most recent recorded events

Latest 8 of 221 recorded events · data through April 2026
Date	Size	Comparable to
April 17, 2026	0.75″	Penny
April 13, 2026	0.75″	Penny
April 13, 2026	1.25″	Half dollar
April 13, 2026	2.0″	Hen egg
April 13, 2026	1.25″	Half dollar
April 13, 2026	1.0″	Quarter
March 30, 2026	0.75″	Penny
March 30, 2026	1.75″	Golf ball

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

From the storm reports

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

April 17, 2026 · 0.75″ (penny)

Penny size hail fell near Athens. The time of this report is an estimate based on radar data.

July 13, 2024 · 3.0″ (tea cup)

Three inch hail fell in Poniatowski. The time of this report is an estimate based on radar data.

April 25, 2008 · 2.75″ (baseball)

Baseball size hail caused damage to several vehicles in Marathon City.

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
0	2	6	9	38	72	42	52

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 Marathon County

Has it ever hailed in Marathon County?

Yes — 221 hail events have been recorded for Marathon County, WI in the NOAA Storm Events Database since 1962, including 122 of 1″ (quarter size) or larger.

When did it last hail in Marathon County?

The most recent recorded hail event for Marathon County, WI is April 17, 2026, 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 Marathon County?

3.0″ (tea cup), recorded on July 13, 2024. 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.