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Hail history for Jefferson County, NY
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
| Date | Hail size | Where |
|---|---|---|
| Jun 26, 2026 | 1.5 in ping pong ball | Ellisburg, Belleville 2 hail reports |
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
When hail season peaks in Jefferson County
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.
| Date | Strongest gust | Where |
|---|---|---|
| Aug 14, 2026 | damage reported | Natural Bridge, West Carthage 2 wind reports |
| Jul 1, 2026 | damage reported | Alexandria Bay, Clayton, Theresa 4 wind reports |
| Jun 30, 2026 | 58 mph, estimated | Clayton, Cape Vincent, Sackets Harbor 6 wind reports |
| Sep 4, 2025 | 58 mph, estimated | Stone Mills, Deferiet 2 wind reports |
| Jun 22, 2025 | 58 mph, estimated | Cape Vincent, Alexandria Bay, Calcium 22 wind reports |
| Mar 16, 2025 | 58 mph, estimated | Henderson, Brownville, Watertown 7 wind reports |
| Jul 16, 2024 | 81 mph, estimated | Sackets Harbor, Watertown Airport, Brownville 11 wind reports |
| Jul 10, 2024 | 59 mph, estimated | Henderson, Sackets Harbor, Watertown Airport 4 wind reports |
| Jun 13, 2024 | 59 mph, estimated | Redwood, Theresa, Oxbow 3 wind reports |
| May 22, 2024 | 59 mph, estimated | Tylerville 1 wind report |
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).