Hail history for Keweenaw County, MI

Keweenaw County has 7 recorded hail events in the NOAA Storm Events Database — 3 of them 1″ or larger and 1 at 2″ or larger. The largest on record: 2.0″ (hen egg) on June 14, 1994.

Records 1950–present Data through April 2026

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 7 since 1955

1″ or larger 3 NWS severe threshold

2″ or larger 1 hen egg class and up

Largest recorded 2.0″ hen egg · June 14, 1994

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.

Most recent recorded events

Latest 7 of 7 recorded events · data through April 2026
Date	Size	Comparable to
August 7, 2017	1.0″	Quarter
June 3, 2011	0.75″	Penny
June 17, 2007	1.0″	Quarter
July 15, 2006	0.88″	Nickel
June 7, 2004	0.75″	Penny
June 14, 1994	2.0″	Hen egg
June 5, 1955	0.75″	Penny

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

From the storm reports

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

August 7, 2017 · 1.0″ (quarter)

A delayed report from the park ranger at Isle Royale National Park reported gusty winds and hail the size of quarters.

June 14, 1994 · 2.0″ (hen egg)

Hail damage reported to vehicle windshields and a metal roof of a store. Winds blew down trees and power lines between Eagle River and Copper Harbor.

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
1	0	0	0	1	3	2	0

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 Keweenaw County

Has it ever hailed in Keweenaw County?

Yes — 7 hail events have been recorded for Keweenaw County, MI in the NOAA Storm Events Database since 1955, including 3 of 1″ (quarter size) or larger.

When did it last hail in Keweenaw County?

The most recent recorded hail event for Keweenaw County, MI is August 7, 2017, 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 Keweenaw County?

2.0″ (hen egg), recorded on June 14, 1994. Hail that size meets or exceeds the National Weather Service severe threshold. 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 Michigan hail history

All 83 Michigan 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.