The most recent reported hail day was 2024-08-14 -- 1 year ago, with nothing reported since. Herkimer 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 2011-06-09 near West Winfield.
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 2024-08-14, around Little Falls. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Herkimer County addresses inside a hail swath above your size threshold into a door-knock list you can export, scoped to your approved markets.
Get free access Check an addressOur US-based call center calls the homeowners in this storm and books roof inspections straight onto your calendar. You work the storm; we fill the schedule. We dial -- you do not have to knock a single door.
See call-center options ->NOAA's Storm Prediction Center has logged 20 separate hail days here since 2010 -- 1.2 a year over 17 years of record. They carry 35 reports in total: most hail days here are logged from a single spot. 7 of those 17 years produced none at all. One year dominates the record: 2013 alone produced 5 of the 20 days. The last five years track the long-run rate, with 6 days since 2022.
Most hail here stays under 2 inches: only 1 of the 20 days on record passed it, 5%, the last on 2011-06-09. They land in the same month as everything else, June. Golf-ball size is rarer still: 1.75 inches or more on 3 of the 20 days.
Across the whole of New York, see the New York hail map and history.
Reports cluster nearest Herkimer -- 4 of the county's 20 hail days -- then West Winfield (3) and Fairfield (3).
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| West Winfield | 3 | 2.00″ |
| Fairfield | 3 | 1.00″ |
| Herkimer | 3 | 1.00″ |
| 4 Wnw Hessville | 1 | 1.75″ |
| Poland | 1 | 1.75″ |
The season runs May through July: 16 of the 20 hail days on record fall in those 3 months (80%). June is the single busiest month, with 6 of them (30%). 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 5 of the 12 calendar months; the other 7 have never produced one.
| Month | Hail days |
|---|---|
| May | 5 |
| June | 6 |
| July | 5 |
| August | 2 |
| September | 2 |
That day put 1 report on the map, the biggest 1 inch near Little Falls. No hail day has been reported here yet this year.
| Date | Max hail | Reports |
|---|---|---|
| 2024-08-14 | 1.00″ | 1 |
| 2023-08-04 | 1.00″ | 2 |
| 2023-07-14 | 1.00″ | 1 |
| 2023-07-13 | 1.00″ | 2 |
| 2023-06-02 | 1.50″ | 2 |
| 2022-05-16 | 1.00″ | 1 |
| 2021-06-14 | 1.75″ | 1 |
| 2016-06-28 | 1.00″ | 2 |
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: Oneida County (37 hail days), Otsego County (21) and Fulton County (15). Herkimer County sits in between.
Oneida County · Otsego County · Fulton County
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, Herkimer County, New York only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.