The most recent reported hail day was 2025-06-09 -- 1 year ago, with nothing reported since. Chautauqua County is hit in about half the years on record. The largest stone on record here is 2 inches, a hen egg and twice the National Weather Service's 1 inch severe criterion, reported on 2019-04-14 near Findley Lake.
Colored swath = NOAA MRMS radar-estimated hail size; dots = NOAA SPC reports in New York. Radar-indicated, not a guarantee of damage.
The last hail here fell on 2025-06-09, around Jamestown. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Chautauqua County addresses inside a hail swath above your size threshold into a door-knock list you can export, scoped to your approved markets.
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See call-center options ->NOAA's Storm Prediction Center has logged 15 separate hail days here since 2010 -- 0.9 a year over 17 years of record. Those days carry 33 separate reports between them, two or three on a typical one. 7 of those 17 years produced none at all. One year dominates the record: 2013 alone produced 3 of the 15 days. The last five years have been quieter than the long run: 2 days since 2022, against 1.1 a year before that.
2 of the 15 days reached 2 inches or more -- 13%, or about one hail day in 8, the last on 2019-04-14. Those big days do not follow the county's usual calendar: most of them fall in April, not June. Golf-ball size is rarer still: 1.75 inches or more on 3 of the 15 days.
Across the whole of New York, see the New York hail map and history.
Reports cluster nearest Jamestown -- 4 of the county's 15 hail days -- then Dunkirk (3), Mayville (2), Sherman (2) and Westfield (2). Beyond those, NOAA names Jamestown West on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Jamestown | 4 | 1.75″ |
| Westfield | 2 | 1.75″ |
| Dunkirk | 2 | 1.00″ |
| 2 Nnw Findley Lake | 1 | 2.00″ |
| 2 Se Forestville | 1 | 2.00″ |
The season runs April through July: 12 of the 15 hail days on record fall in those 4 months (80%). June is the single busiest month, with 4 of them (27%). That peak sits inside the window rather than at either end. Hail has also been reported in August and September, outside that window. Reports span 6 of the 12 calendar months; the other 6 have never produced one.
| Month | Hail days |
|---|---|
| April | 3 |
| May | 3 |
| June | 4 |
| July | 2 |
| August | 2 |
| September | 1 |
That day put 4 reports on the map, the biggest 1.25 inches near Jamestown. No hail day has been reported here yet this year.
| Date | Max hail | Reports |
|---|---|---|
| 2025-06-09 | 1.25″ | 4 |
| 2025-06-05 | 1.00″ | 2 |
| 2021-06-20 | 1.25″ | 1 |
| 2020-04-07 | 1.00″ | 1 |
| 2019-08-15 | 1.25″ | 2 |
| 2019-04-14 | 2.00″ | 8 |
| 2017-05-28 | 2.00″ | 2 |
| 2014-08-02 | 1.50″ | 1 |
The colored swath is NOAA's MRMS radar estimate of the largest hail per ~1 km cell; the dots are SPC ground reports. Yellow is about an inch, red 1.5 to 2″, purple 2″ and up (hail size vs roof damage). On this county's worst day the reports reached 2 inches, which is the purple band. Look up a street address with the hail history by address tool.
The nearest counties with a page of their own, over the state line included: Erie County (15 hail days), Steuben County (17), Chemung County (14), Erie County, Pennsylvania (20) and Crawford County, Pennsylvania (25). Chautauqua County sits in between.
Erie County · Steuben County · Chemung County · Erie County, Pennsylvania · Crawford County, Pennsylvania
Back to the New York hail map or the U.S. hail map.
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Chautauqua County, New York only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.