Hail history for Calumet County, WI

Calumet County has 95 recorded hail events in the NOAA Storm Events Database — 61 of them 1″ or larger and 10 at 2″ or larger. The largest on record: 4.0″ (softball) on March 29, 1998.

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 95 since 1964

1″ or larger 61 NWS severe threshold

2″ or larger 10 hen egg class and up

Largest recorded 4.0″ softball · March 29, 1998

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 Calumet County

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

Most recent recorded events

Latest 8 of 95 recorded events · data through April 2026
Date	Size	Comparable to
March 30, 2026	1.0″	Quarter
March 30, 2026	1.75″	Golf ball
August 4, 2024	0.88″	Nickel
August 4, 2024	0.88″	Nickel
August 3, 2022	0.75″	Penny
September 7, 2021	1.0″	Quarter
September 7, 2021	1.0″	Quarter
September 7, 2021	1.25″	Half dollar

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

From the storm reports

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

March 30, 2026 · 1.75″ (golf ball)

Golf ball size hail fell in Stockbridge.

July 16, 2008 · 2.5″ (tennis ball)

Tennis ball size hail fell at Chilton.

July 16, 2008 · 2.0″ (hen egg)

Hail up to 2 inches in diameter caused damage to approximately 20 homes and several cars.

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
0	2	3	5	15	38	19	13

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 Calumet County

Has it ever hailed in Calumet County?

Yes — 95 hail events have been recorded for Calumet County, WI in the NOAA Storm Events Database since 1964, including 61 of 1″ (quarter size) or larger.

When did it last hail in Calumet County?

The most recent recorded hail event for Calumet County, WI is March 30, 2026, with 1.0″ (quarter) 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 Calumet County?

4.0″ (softball), recorded on March 29, 1998. 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.