Hail history for Oconto County, WI

Oconto County has 85 recorded hail events in the NOAA Storm Events Database — 55 of them 1″ or larger and 7 at 2″ or larger. The largest on record: 4.0″ (softball) on August 2, 2015.

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 85 since 1965

1″ or larger 55 NWS severe threshold

2″ or larger 7 hen egg class and up

Largest recorded 4.0″ softball · August 2, 2015

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 Oconto County

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

Most recent recorded events

Latest 8 of 85 recorded events · data through April 2026
Date	Size	Comparable to
July 8, 2025	1.0″	Quarter
June 25, 2024	1.5″	Ping-pong ball
October 24, 2023	0.75″	Penny
October 24, 2023	1.0″	Quarter
July 28, 2023	1.5″	Ping-pong ball
May 12, 2022	1.0″	Quarter
May 12, 2022	1.0″	Quarter
May 12, 2022	0.75″	Penny

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

From the storm reports

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

July 8, 2025 · 1.0″ (quarter)

Quarter size hail fell near Suring.

August 2, 2015 · 4.0″ (softball)

A thunderstorm dropped softball size hail as it passed through Abrams.

August 2, 2015 · 4.0″ (softball)

Softball size hail fell near Abrams, causing isolated vehicle damage.

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
0	1	0	8	13	20	25	18

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 Oconto County

Has it ever hailed in Oconto County?

Yes — 85 hail events have been recorded for Oconto County, WI in the NOAA Storm Events Database since 1965, including 55 of 1″ (quarter size) or larger.

When did it last hail in Oconto County?

The most recent recorded hail event for Oconto County, WI is July 8, 2025, 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 Oconto County?

4.0″ (softball), recorded on August 2, 2015. 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.