The most recent reported hail day was 2025-06-21 -- 1 year ago, with nothing reported since. Madison County is hit in most years. 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 2013-05-29 near Georgetown.
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 2025-06-21, around Hamilton. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Madison 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 18 separate hail days here since 2010 -- 1.1 a year over 17 years of record. They carry 23 reports in total: most hail days here are logged from a single spot. 6 of those 17 years produced none at all. One year dominates the record: 2011 alone produced 4 of the 18 days. The last five years have been quieter than the long run: 2 days since 2022, against 1.3 a year before that.
Most hail here stays under 2 inches: only 1 of the 18 days on record passed it, 6%, the last on 2013-05-29. They land in the same month as everything else, May. Golf-ball size is rarer still: 1.75 inches or more on 2 of the 18 days.
Across the whole of New York, see the New York hail map and history.
Reports cluster nearest Canastota -- 3 of the county's 18 hail days -- then Hamilton (3), Georgetown (2), Cazenovia (2) and North Brookfield (2).
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Georgetown | 2 | 2.00″ |
| North Brookfield | 2 | 1.25″ |
| Canastota | 2 | 1.00″ |
| 1 NW Hamilton | 1 | 1.50″ |
| 1 S Morrisville | 1 | 1.50″ |
The season runs May through August: 18 of the 18 hail days on record fall in those 4 months (100%). May is the single busiest month, with 7 of them (39%). That peak opens the window: the season starts at its worst and eases off from there. Reports span 4 of the 12 calendar months; the other 8 have never produced one.
| Month | Hail days |
|---|---|
| May | 7 |
| June | 5 |
| July | 2 |
| August | 4 |
That day put 1 report on the map, the biggest 1.5 inches near Hamilton. No hail day has been reported here yet this year.
| Date | Max hail | Reports |
|---|---|---|
| 2025-06-21 | 1.50″ | 1 |
| 2024-08-05 | 1.00″ | 1 |
| 2021-06-21 | 1.00″ | 1 |
| 2020-08-23 | 1.00″ | 1 |
| 2019-08-17 | 1.00″ | 1 |
| 2019-05-10 | 1.25″ | 1 |
| 2017-08-12 | 1.50″ | 2 |
| 2015-06-12 | 1.25″ | 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: Oneida County (37 hail days), Chenango County (17) and Onondaga County (19). Madison County sits in between.
Oneida County · Chenango County · Onondaga 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, Madison County, New York only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.