Grand Isle County, Vermont severe weather history spans 95 recorded events between 1958 and 2025. The dominant hazard is thunderstorm wind, accounting for 65.3% of all recorded events. It ranks #2,902 nationally and #14 in Vermont.
95
Recorded events
0
Direct deaths
1
Direct injuries
$2.8M
Property damage
The record
What the Grand Isle County, Vermont severe weather history record shows
Across the archive, Grand Isle County, Vermont severe weather history averages 1.4 recorded events a year. The busiest stretch on record is the 2000s, with 37 events logged in that decade alone. Roughly 9 events fall before 1990 and 86 from 1990 onward — a gap that reflects the expansion of NOAA reporting practice as much as the weather itself.
The costliest is lightning, with $1.8M in reported property damage. In total, 7 distinct hazard types appear in this county archive, each listed with its own dated record below.
By hazard type
Every hazard type recorded in Grand Isle County
| Hazard | Events | Deaths | Damage | Max | Span |
|---|---|---|---|---|---|
| Thunderstorm Wind | 62 | 0 | $895K | 70 | 1958–2025 |
| Hail | 18 | 0 | $10K | 1.75 | 1980–2023 |
| Lightning | 6 | 0 | $1.8M | 0 | 1998–2019 |
| Heavy Rain | 4 | 0 | $0 | 0 | 2002–2005 |
| Flash Flood | 2 | 0 | $50K | 0 | 1998–1998 |
| Strong Wind | 2 | 0 | $0 | 0 | 2000–2001 |
| Funnel Cloud | 1 | 0 | $0 | 0 | 2007–2007 |
Decade by decade
Grand Isle County, Vermont severe weather history by decade
Reporting practice changed over time — early decades are undercounted, not calmer.
Tornado tracks
Paths crossing this county
1 mapped tornado paths intersect this county: 1 touched down inside it and 0 crossed in from a neighbouring county. This comes from path geometry, not county-tagged reports.
| Date | Scale | Deaths | Injuries | Path length | Origin |
|---|---|---|---|---|---|
| 1963-07-04 | EF2 | 0 | 0 | 5.9 mi | Touched down here |
Significant events
Deadliest events on record in Grand Isle County
| Date | Type | Location | Deaths | Injuries | Damage |
|---|---|---|---|---|---|
| Jun 9, 1987 | Thunderstorm Wind | 0 | 1 | $0 |
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
Numerous trees and powerlines down in Grand Isle, which have blocked and closed several roads including Route 2. Trees fell and trapped drivers in two vehicles with no injuries reported. Wind damage in the form of trees piercing through roofs, crushed vehicles, docks and patios torn off to several camps along the west shore of Route 2, including Irish Rover Lane.
Context
Risk, population and federal disasters
Very Low
FEMA NRI risk rating
7,450
Population (ACS)
$394K
Median home value
18
Federal declarations
| Declared | Incident | Title | Type |
|---|---|---|---|
| Aug 8, 2024 | Tropical Storm | TROPICAL DEPRESSION DEBBY | EM |
| Jul 14, 2023 | Flood | SEVERE STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES | DR |
| Jul 10, 2023 | Flood | FLOODING | EM |
| Mar 20, 2023 | Severe Storm | SEVERE STORM AND FLOODING | DR |
| Aug 22, 2021 | Hurricane | TROPICAL STORM HENRI | EM |
| Apr 8, 2020 | Biological | COVID-19 PANDEMIC | DR |
Quick answers
Frequently asked
How many severe weather events have been recorded in Grand Isle County, Vermont?
95 events are on record between 1958 and 2025, causing 0 direct deaths and $2.8M in property damage.
What is the most common severe weather hazard in Grand Isle County?
Thunderstorm Wind, with 62 recorded events — 65.3% of everything in the archive for this county.
How many tornadoes have crossed Grand Isle County?
1 mapped tornado paths intersect the county boundary; 1 of them touched down inside it. This is derived from path geometry, not county-tagged reports.
How many federal disaster declarations cover Grand Isle County?
18 federal disaster declarations from FEMA include Grand Isle County, each tied to a specific incident period.
How risky is Grand Isle County compared with the rest of the country?
FEMA's National Risk Index rates Grand Isle County as very low risk, placing it in the 2 percentile of its state for expected annual loss.
Where does the Grand Isle County, Vermont severe weather history data come from?
Every figure is drawn from United States federal public-domain records: NOAA/NCEI Storm Events for the event archive, NOAA SPC SVRGIS for mapped tornado paths, FEMA for disaster declarations and risk ratings, and the U.S. Census for population context. Dates are shown in UTC and recent entries may still be revised by NOAA.
Nearby
Neighbouring counties
- Franklin County 260
- Lamoille County 176
- Orange County 215
- Essex County 135
- Orleans County 258
- Chittenden County 530
Cite this page
“Grand Isle County, Vermont.” Severe Weather History. severeweatherhistory.com/county/vermont/grand-isle-county/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.