Hail History

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Hail history for Jefferson County, NY

Last hail in the countyJun 26, 20261.5 in (ping pong ball)
Hail days, last 12 months1
Largest hail since 20061.75 in (golf ball)Aug 15, 2018
Hail days since 200614
Days with hail 1 inch or larger8
Tornadoes in the county1
Damaging wind reports in the county205

20 hail reports in Jefferson County since 2006 on 14 days. The largest stones measured 1.75 in (golf ball) on Aug 15, 2018.

Cities in Jefferson County

Recent hail in Jefferson County

DateHail sizeWhereSource
Jun 26, 20261.5 in
ping pong ball
Ellisburg, Belleville
2 hail reports
NOAA Storm Events

One row per day: the largest hail reported in the county that day, the places and the number of reports.

Hail days in Jefferson County by year

20620708109110112121131415161171181191202122232425126

When hail season peaks in Jefferson County

JanFeb1MarApr2May3Jun6Jul2AugSepOctNovDec

Damaging thunderstorm winds in Jefferson County

205 reports of damaging thunderstorm wind in Jefferson County since 2006, on 74 days. The strongest measured gust was 68 mph on Jun 8, 2011.

DateStrongest gustWhereSource
Aug 14, 2026damage reportedNatural Bridge, West Carthage
2 wind reports
NWS storm report (preliminary)
Jul 1, 2026damage reportedAlexandria Bay, Clayton, Theresa
4 wind reports
NWS storm report (preliminary)
Jun 30, 202658 mph, estimatedClayton, Cape Vincent, Sackets Harbor
6 wind reports
NOAA Storm Events + NWS storm report (preliminary)
Sep 4, 202558 mph, estimatedStone Mills, Deferiet
2 wind reports
NOAA Storm Events
Jun 22, 202558 mph, estimatedCape Vincent, Alexandria Bay, Calcium
22 wind reports
NOAA Storm Events
Mar 16, 202558 mph, estimatedHenderson, Brownville, Watertown
7 wind reports
NOAA Storm Events
Jul 16, 202481 mph, estimatedSackets Harbor, Watertown Airport, Brownville
11 wind reports
NOAA Storm Events
Jul 10, 202459 mph, estimatedHenderson, Sackets Harbor, Watertown Airport
4 wind reports
NOAA Storm Events
Jun 13, 202459 mph, estimatedRedwood, Theresa, Oxbow
3 wind reports
NOAA Storm Events
May 22, 202459 mph, estimatedTylerville
1 wind report
NOAA Storm Events

Severe thunderstorm wind means gusts of 58 mph or more, or wind that caused damage. Measured gusts come from weather stations; estimated ones from spotters and damage surveys.

Filing a roof or car hail claim?

Insurers ask for the date of loss. The dates on this page are when hail was reported near Jefferson County; hail can hit one street and miss the next, so a report is not proof of damage at your address. A licensed roofer or your insurance adjuster can inspect the roof. Many policies set a time limit for filing a claim — check yours.

Data: NOAA NCEI Storm Events Database (final records through Jun 30, 2026) and National Weather Service Local Storm Reports (preliminary, since then).