Hail history for Lyon County, MN

Lyon County has 254 recorded hail events in the NOAA Storm Events Database — 154 of them 1″ or larger and 17 at 2″ or larger. The largest on record: 3.5″ (softball) on July 18, 1963.

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 254 since 1962

1″ or larger 154 NWS severe threshold

2″ or larger 17 hen egg class and up

Largest recorded 3.5″ softball · July 18, 1963

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 Lyon County

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

Most recent recorded events

Latest 8 of 254 recorded events · data through April 2026
Date	Size	Comparable to
August 14, 2025	1.25″	Half dollar
August 14, 2025	0.88″	Nickel
August 14, 2025	1.0″	Quarter
August 14, 2025	0.75″	Penny
August 14, 2025	1.75″	Golf ball
July 27, 2025	1.0″	Quarter
July 18, 2025	0.88″	Nickel
September 21, 2024	1.5″	Ping-pong ball

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

From the storm reports

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

August 14, 2025 · 1.0″ (quarter)

Hail was mostly dime size, but some was as large as a quarter.

June 19, 2012 · 2.75″ (baseball)

Large hail broke windows, and damaged roofs, vehicles, and crops. The amount of damage was not known.

June 10, 2007 · 2.75″ (baseball)

Large hail caused an unknown amount of crop damage.

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
0	5	9	11	19	87	80	43

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 Lyon County

Has it ever hailed in Lyon County?

Yes — 254 hail events have been recorded for Lyon County, MN in the NOAA Storm Events Database since 1962, including 154 of 1″ (quarter size) or larger.

When did it last hail in Lyon County?

The most recent recorded hail event for Lyon County, MN is August 14, 2025, 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 Lyon County?

3.5″ (softball), recorded on July 18, 1963. 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.