Porter County, Indiana Hail Map & History
Porter County was hit as recently as 2026-08-11, 34 days ago. Porter County is hit in about half the years on record. The largest stone on record here is 1.75 inches, a golf ball and 1.8 times the National Weather Service's 1 inch severe criterion, reported on 2017-07-07 near Chesterton.
Colored swath = NOAA MRMS radar-estimated hail size; dots = NOAA SPC reports in Indiana. Radar-indicated, not a guarantee of damage.
The last hail here fell on 2026-08-11, around Lakes of the Four. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Porter 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 ->How often it hails in Porter County
NOAA's Storm Prediction Center has logged 22 separate hail days here since 2010 -- 1.3 a year over 17 years of record. They carry 39 reports in total: most hail days here are logged from a single spot. 7 of those 17 years produced none at all. The busiest single year was 2026, with 3 hail days. The last five years track the long-run rate, with 8 days since 2022.
No stone of 2 inches or more has ever been reported in Porter County: all 22 hail days on record topped out below that. Golf-ball size is rarer still: 1.75 inches or more on 3 of the 22 days.
Across the whole of Indiana, see the Indiana hail map and history.
Hardest-hit places in Porter County
Reports cluster nearest Valparaiso -- 6 of the county's 22 hail days -- then Portage (6), Chesterton (5) and South Haven (3).
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Portage | 5 | 1.50″ |
| Chesterton | 3 | 1.00″ |
| Valparaiso | 2 | 1.50″ |
| 1 Sse South Haven | 2 | 1.25″ |
| 5 Nne Valparaiso | 1 | 1.75″ |
When it hails in Porter County
The season runs March through August: 19 of the 22 hail days on record fall in those 6 months (86%). May is the single busiest month, with 6 of them (27%). That peak sits inside the window rather than at either end. Hail has also been reported in January, February and October, outside that window. September, November and December are the only months that have never produced a reported hail day.
| Month | Hail days |
|---|---|
| January | 1 |
| February | 1 |
| March | 4 |
| April | 1 |
| May | 6 |
| June | 2 |
| July | 3 |
| August | 3 |
| October | 1 |
Recent Porter County hail days
That day put 1 report on the map, the biggest 1 inch near Lakes of the Four. 3 hail days have already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-08-11 | 1.00″ | 1 |
| 2026-05-18 | 1.00″ | 1 |
| 2026-03-10 | 1.00″ | 2 |
| 2024-05-07 | 1.25″ | 3 |
| 2024-02-08 | 1.00″ | 1 |
| 2023-03-31 | 1.00″ | 2 |
| 2022-08-29 | 1.25″ | 1 |
| 2022-08-28 | 1.25″ | 1 |
How to read the Porter County map
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 1.75 inches, which is the red band. Look up a street address with the hail history by address tool.
Nearby counties
The nearest counties with a page of their own: La Porte County (20 hail days), Lake County (35) and Starke County (13). Porter County sits in between.
La Porte County · Lake County · Starke County
Back to the Indiana hail map or the U.S. hail map.
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Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Porter County, Indiana only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.