Hail history for Grand Isle County, VT

Grand Isle County has 18 recorded hail events in the NOAA Storm Events Database — 8 of them 1″ or larger. The largest on record: 1.75″ (golf ball) on September 11, 2013.

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 18 since 1980

1″ or larger 8 NWS severe threshold

2″ or larger 0 hen egg class and up

Largest recorded 1.75″ golf ball · September 11, 2013

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 Grand Isle County

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

Most recent recorded events

Latest 8 of 18 recorded events · data through April 2026
Date	Size	Comparable to
July 4, 2023	1.0″	Quarter
May 21, 2022	1.0″	Quarter
September 11, 2013	1.75″	Golf ball
May 29, 2012	1.0″	Quarter
May 16, 2012	0.75″	Penny
July 21, 2010	1.0″	Quarter
June 26, 2009	0.88″	Nickel
August 16, 2007	1.0″	Quarter

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

From the storm reports

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

May 21, 2022 · 1.0″ (quarter)

Quarter size hail reported.

September 11, 2013 · 1.75″ (golf ball)

Golf ball size hail reported with isolated vehicle and awning damage.

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
0	0	0	1	3	8	4	2

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 Grand Isle County

Has it ever hailed in Grand Isle County?

Yes — 18 hail events have been recorded for Grand Isle County, VT in the NOAA Storm Events Database since 1980, including 8 of 1″ (quarter size) or larger.

When did it last hail in Grand Isle County?

The most recent recorded hail event for Grand Isle County, VT is July 4, 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 Grand Isle County?

1.75″ (golf ball), recorded on September 11, 2013. 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 Vermont hail history

All 14 Vermont 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.