The most recent reported hail day was 2026-03-30, 123 days ago. Ingham 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 2023-07-20 near Mason.
Colored swath = NOAA MRMS radar-estimated hail size; dots = NOAA SPC reports in Michigan. Radar-indicated, not a guarantee of damage.
The last hail here fell on 2026-03-30, around Onondaga. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Ingham 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 16 separate hail days here since 2010 -- 0.9 a year over 17 years of record. Those days carry 34 separate reports between them, two or three on a typical one. 7 of those 17 years produced none at all. The busiest single year was 2026, with 3 hail days. The last five years have run hotter than the long-run rate: 8 days since 2022, against 0.7 a year before that.
2 of the 16 days reached 2 inches or more -- 12%, or about one hail day in 8, the last on 2023-07-20. Those big days do not follow the county's usual calendar: most of them fall in July, not June. Golf-ball size is rarer still: 1.75 inches or more on 3 of the 16 days.
Across the whole of Michigan, see the Michigan hail map and history.
Reports cluster nearest Mason -- 6 of the county's 16 hail days -- then Holt (4), Haslett (3), Lansing (2) and Okemos (2).
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Mason | 3 | 2.00″ |
| Haslett | 2 | 1.00″ |
| Holt | 2 | 1.00″ |
| Okemos | 2 | 1.00″ |
| 1 Ese Mason | 1 | 2.00″ |
The season runs February through June: 13 of the 16 hail days on record fall in those 5 months (81%). June is the single busiest month, with 5 of them (31%). That peak closes the window: the season builds all the way to its worst month and then stops. Hail has also been reported in July, August and September, outside that window. Reports span 8 of the 12 calendar months; the other 4 have never produced one.
| Month | Hail days |
|---|---|
| February | 1 |
| March | 3 |
| April | 3 |
| May | 1 |
| June | 5 |
| July | 1 |
| August | 1 |
| September | 1 |
That day put 1 report on the map, the biggest 1 inch near Onondaga. 3 hail days have already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-03-30 | 1.00″ | 1 |
| 2026-03-06 | 1.00″ | 4 |
| 2026-02-18 | 1.00″ | 2 |
| 2024-06-20 | 1.75″ | 6 |
| 2024-04-17 | 1.25″ | 6 |
| 2023-07-20 | 2.00″ | 2 |
| 2023-06-15 | 1.00″ | 1 |
| 2022-09-21 | 2.00″ | 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: Livingston County (13 hail days), Washtenaw County (24) and Genesee County (15). Ingham County sits in between.
Livingston County · Washtenaw County · Genesee County
Back to the Michigan hail map or the U.S. hail map.
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Ingham County, Michigan only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.