Hail history for Ozaukee County, WI

Ozaukee County has 71 recorded hail events in the NOAA Storm Events Database — 39 of them 1″ or larger and 6 at 2″ or larger. The largest on record: 3.0″ (tea cup) on June 23, 2004.

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 71 since 1961

1″ or larger 39 NWS severe threshold

2″ or larger 6 hen egg class and up

Largest recorded 3.0″ tea cup · June 23, 2004

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 Ozaukee County

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

Most recent recorded events

Latest 8 of 71 recorded events · data through April 2026
Date	Size	Comparable to
May 7, 2024	0.75″	Penny
May 7, 2024	1.0″	Quarter
May 7, 2024	0.75″	Penny
April 19, 2023	0.75″	Penny
April 19, 2023	1.0″	Quarter
April 7, 2020	1.5″	Ping-pong ball
April 7, 2020	1.0″	Quarter
April 7, 2020	1.0″	Quarter

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

From the storm reports

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

May 28, 2012 · 1.25″ (half dollar)

A report from the public via Twitter stated 1.25 inch diameter hail fell in Cedarburg.

April 18, 1995 · 0.88″ (nickel)

Scattered severe thunderstorms generated damaging winds and hail up to one inch in diameter across southern Wisconsin. Powerful winds blew down many large trees and power lines in Grant County. Hail was the main afternoon event over southeast Wisconsin. One inch diameter hail was produced by two separate storms over Kenosha County.

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
0	2	5	4	6	25	15	14

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 Ozaukee County

Has it ever hailed in Ozaukee County?

Yes — 71 hail events have been recorded for Ozaukee County, WI in the NOAA Storm Events Database since 1961, including 39 of 1″ (quarter size) or larger.

When did it last hail in Ozaukee County?

The most recent recorded hail event for Ozaukee County, WI is May 7, 2024, 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 Ozaukee County?

3.0″ (tea cup), recorded on June 23, 2004. 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.