Hail history for Cook County, MN

Cook County has 25 recorded hail events in the NOAA Storm Events Database — 14 of them 1″ or larger and 1 at 2″ or larger. The largest on record: 3.0″ (tea cup) on June 25, 1984.

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 25 since 1984

1″ or larger 14 NWS severe threshold

2″ or larger 1 hen egg class and up

Largest recorded 3.0″ tea cup · June 25, 1984

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 Cook County

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

Most recent recorded events

Latest 8 of 25 recorded events · data through April 2026
Date	Size	Comparable to
July 25, 2023	1.0″	Quarter
May 30, 2022	1.0″	Quarter
May 30, 2022	1.0″	Quarter
October 10, 2021	1.75″	Golf ball
June 30, 2021	1.0″	Quarter
June 8, 2021	1.25″	Half dollar
July 19, 2020	0.88″	Nickel
September 2, 2017	0.75″	Penny

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

From the storm reports

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

October 10, 2021 · 1.75″ (golf ball)

A search and rescue crew in the area had to take cover near Eagle Mountain due to the large hail.

July 5, 2014 · 1.0″ (quarter)

There was also ponding of water on Highway 61 in Tofte, MN.

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
0	0	0	3	1	5	9	7

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 Cook County

Has it ever hailed in Cook County?

Yes — 25 hail events have been recorded for Cook County, MN in the NOAA Storm Events Database since 1984, including 14 of 1″ (quarter size) or larger.

When did it last hail in Cook County?

The most recent recorded hail event for Cook County, MN is July 25, 2023, 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 Cook County?

3.0″ (tea cup), recorded on June 25, 1984. 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 Minnesota hail history

All 87 Minnesota 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.