Hail history for Koochiching County, MN

Koochiching County has 147 recorded hail events in the NOAA Storm Events Database — 81 of them 1″ or larger and 13 at 2″ or larger. The largest on record: 3.0″ (tea cup) on May 15, 1998.

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 147 since 1959

1″ or larger 81 NWS severe threshold

2″ or larger 13 hen egg class and up

Largest recorded 3.0″ tea cup · May 15, 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 Koochiching County

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

Most recent recorded events

Latest 8 of 147 recorded events · data through April 2026
Date	Size	Comparable to
August 8, 2023	1.0″	Quarter
June 14, 2022	0.75″	Penny
May 29, 2022	1.0″	Quarter
July 17, 2019	0.75″	Penny
June 4, 2019	1.0″	Quarter
June 4, 2019	0.75″	Penny
July 4, 2018	0.75″	Penny
August 28, 2016	1.0″	Quarter

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

From the storm reports

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

August 8, 2023 · 1.0″ (quarter)

Hail was mostly dime-sized but a few hailstones were quarter-sized.

June 19, 2016 · 2.0″ (hen egg)

Most of the hail stones were 1.75 inches in diameter, but there were several up 2 inches in diameter.

August 22, 1995 · 3.0″ (tea cup)

Numerous reports of broken windshields and glass. Sheetmetal and fiberglass damage to light buildings.

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
1	5	11	24	49	31	23	3

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 Koochiching County

Has it ever hailed in Koochiching County?

Yes — 147 hail events have been recorded for Koochiching County, MN in the NOAA Storm Events Database since 1959, including 81 of 1″ (quarter size) or larger.

When did it last hail in Koochiching County?

The most recent recorded hail event for Koochiching County, MN is August 8, 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 Koochiching County?

3.0″ (tea cup), recorded on May 15, 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 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.