Hail history for Jefferson County, New York
Every NOAA hail report filed in Jefferson County since 1968, with preliminary National Weather Service reports to November 3, 2026.
Readout · Jefferson County
- Last hail
- Jun 26, 2026
- 1.50 in, ping pong ball size
- Hail days, last 5 years
- 1
- since Nov 3, 2021 · 2 reports
- Largest ever
- 1.75 in
- golf ball · Aug 15, 2018
27 reports on 20 days since 1968 · #56 of 63 New York counties
Hail map · Jefferson County
- Under 1 in
- 1–1.75 in
- 1.75–2.5 in
- 2.5–4 in
- 4 in +
- No size
For homeowners
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What the record says about Jefferson County
The latest hail report in Jefferson County is from June 26, 2026, 1.50 in (ping pong ball size). Since November 3, 2021 there has been one hail day; the biggest stones in that time were 1.50 in on June 26, 2026.
Over the 20 years 2006–2025, Jefferson County logged 18 reports on 13 hail days, about 0.9 reports a year. That is 37% of the median New York county (2.5 a year) and ranks #56 of 63 New York counties for all-time reports. Jefferson County holds 1% of all 5,098 hail reports in New York.
0% of reports with a size were 2 inches (hen egg) or larger, against 2% for the median New York county. The largest hail on record here is 1.75 in (golf ball) on August 15, 2018 near 0.49 E Fineview.
Reports were down 62% in 2016–2025 (5) compared with 2006–2015 (13). The busiest year was 2010, with 4 reports on 1 day. Hail here peaks in July (41% of reports); 30% fall between April and June.
Reports a year 2006–2025 average
- Jefferson County 0.9
- Median New York county 2.5
Hail days 2006–2025
- Jefferson County 13
- Median New York county 25
Share 2 in or larger of sized reports
- Jefferson County 0%
- Median New York county 2%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 2 | 2 | |||||||||||
| 2025 | 0 | ||||||||||||
| 2024 | 0 | ||||||||||||
| 2023 | 0 | ||||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 1 | 1 | |||||||||||
| 2019 | 1 | 1 | |||||||||||
| 2018 | 2 | 2 | |||||||||||
| 2017 | 1 | 1 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Jun 26, 2026 | 2 | 1.50 in | — |
Largest hail on record
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| Aug 15, 2018 | 1.75 ingolf ball | 0.49 E Fineview | $10K | 16:06 local · NCEI |
| Jul 21, 2010 | 1.75 ingolf ball | 2.49 NNE St Lawrence | $15K | 15:00 local · NCEI |
| Jul 20, 1992 | 1.75 ingolf ball | — | — | 14:42 local · NCEI |
| Jun 26, 2026 | 1.50 inping pong ball | 1.38 N Ellisburg | — | 04:53 local · NCEI |
| Aug 15, 2018 | 1.50 inping pong ball | 1.21 NE Frontenac | $10K | 16:06 local · NCEI |
Sizes filed before 1996 are often rough estimates (round numbers like 7.00 or 8.00 in) without an exact spot; they are shown as NOAA filed them.
Size of every report
- Under 1 in 10 37%
- 1–2 in 17 63%
- 2 in + 0 0%
Most recent reports
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| Jun 26, 2026 | 1.50 inping pong ball | 1.38 N Ellisburg | — | 04:53 local · NCEI |
| Jun 26, 2026 | 1.00 inquarter | 1.38 S Belleville | — | 04:52 local · NCEI |
| Mar 29, 2020 | 1.00 inquarter | 2.94 SSW Oxbow | — | 16:22 local · NCEI |
| Jul 11, 2019 | 0.75 inpenny | 0.85 SE Watertown | — | 17:55 local · NCEI |
| Aug 15, 2018 | 1.50 inping pong ball | 1.21 NE Frontenac | $10K | 16:06 local · NCEI |
| Aug 15, 2018 | 1.75 ingolf ball | 0.49 E Fineview | $10K | 16:06 local · NCEI |
| Aug 4, 2017 | 1.00 inquarter | Adams | $5K | 16:55 local · NCEI |
| May 21, 2013 | 1.00 inquarter | 1.21 NE Pierrepont Manor | $10K | 00:30 local · NCEI |
| Jul 10, 2012 | 0.75 inpenny | 0.85 SW Watertown | — | 12:15 local · NCEI |
| May 29, 2012 | 1.00 inquarter | 1.21 SW Black River | $10K | 02:30 local · NCEI |
| Jul 21, 2010 | 0.75 inpenny | 1.47 SSE Sackets Harbor | — | 17:33 local · NCEI |
| Jul 21, 2010 | 0.75 inpenny | 1.47 SSE Sackets Harbor | — | 17:15 local · NCEI |
Smaller places with fewer than 10 reports
These places have too few reports for a page of their own, so their record lives here.
| Place | Reports | Hail days | Latest |
|---|---|---|---|
| Watertown | 4 | 4 | Jul 11, 2019 |
| Adams | 2 | 2 | Aug 4, 2017 |
| Clayton | 2 | 2 | Jul 21, 2010 |
| Ellisburg | 2 | 1 | Jun 26, 2026 |
| Fishers Landing | 2 | 1 | Aug 15, 2018 |
| Henderson | 2 | 2 | Jun 21, 2007 |
| Sackets Harbor | 2 | 1 | Jul 21, 2010 |
| Adams Center | 1 | 1 | Aug 24, 1998 |
| Antwerp | 1 | 1 | Mar 29, 2020 |
| Black River | 1 | 1 | May 29, 2012 |
| Chaumont | 1 | 1 | Aug 1, 2005 |
| Dexter | 1 | 1 | Jun 30, 2006 |
| Fort Drum | 1 | 1 | Jul 6, 2007 |
| Pierrepont Manor | 1 | 1 | May 21, 2013 |
| Theresa | 1 | 1 | Jul 7, 2009 |
Questions about hail in Jefferson County
How often does it hail in Jefferson County, New York?
27 hail reports have been logged in Jefferson County since 1968. Over the 20 years 2006–2025 that averages 0.9 reports a year. That ranks #56 of 63 New York counties by number of reports.
When is hail season in Jefferson County?
Most reports come in July, August, June. July alone accounts for 41% of all reports.
What is the largest hail recorded in Jefferson County?
1.75 in (golf ball size) on August 15, 2018 near 0.49 E Fineview. 0% of reports here were 2 inches or larger.
When did it last hail in Jefferson County?
The most recent report in this data is from June 26, 2026 (1.50 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Jefferson County had in the last five years?
1 separate days with hail reports since November 3, 2021, adding up to 2 reports. The most recent was June 26, 2026.
Where does this hail data come from?
Hail reports come from the NOAA NCEI Storm Events Database, which the National Weather Service compiles from spotter, public, law enforcement and media reports. Recent days use preliminary NWS Local Storm Reports via the Iowa Environmental Mesonet until NOAA publishes final data. Only reported hail is counted, so areas with fewer people tend to have fewer reports.