Hail history for Iroquois County, IL

Iroquois County has 73 recorded hail events in the NOAA Storm Events Database — 53 of them 1″ or larger and 6 at 2″ or larger. The largest on record: 3.0″ (tea cup) on June 7, 1980.

Records 1950–present Data through April 2026 Peak month June

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 73 since 1960

1″ or larger 53 NWS severe threshold

2″ or larger 6 hen egg class and up

Largest recorded 3.0″ tea cup · June 7, 1980

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 Iroquois County

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

Most recent recorded events

Latest 8 of 73 recorded events · data through April 2026
Date	Size	Comparable to
August 30, 2024	1.25″	Half dollar
June 25, 2024	1.0″	Quarter
June 25, 2024	1.0″	Quarter
June 25, 2024	1.0″	Quarter
June 25, 2024	1.0″	Quarter
June 12, 2021	1.25″	Half dollar
March 14, 2019	1.0″	Quarter
July 10, 2017	0.75″	Penny

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

From the storm reports

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

May 26, 2017 · 1.25″ (half dollar)

Half dollar size hail was reported on Route 45 south of Buckley.

April 14, 2006 · 2.5″ (tennis ball)

Hail as large as tennis balls fell in Milford which cracked windshields, dented cars and broke windows. A bank received substantial damage to the roof with the breaking of 32 sky lights.

May 19, 2005 · 2.75″ (baseball)

Baseball size hail was reported near mile marker 302 on Interstate 57 at the Kankakee-Iroquois County line.

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
0	3	5	6	6	25	22	6

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 Iroquois County

Has it ever hailed in Iroquois County?

Yes — 73 hail events have been recorded for Iroquois County, IL in the NOAA Storm Events Database since 1960, including 53 of 1″ (quarter size) or larger.

When did it last hail in Iroquois County?

The most recent recorded hail event for Iroquois County, IL is August 30, 2024, with 1.25″ (half dollar) 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 Iroquois County?

3.0″ (tea cup), recorded on June 7, 1980. 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 Illinois hail history

All 102 Illinois 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.