The most recent reported hail day was 2026-03-22, 131 days ago. Johnson County is hit in most years. The largest stone on record here is 2.75 inches, a baseball and 2.8 times the National Weather Service's 1 inch severe criterion, reported on 2011-05-25 near Whiteland.
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 2026-03-22, around Franklin. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Johnson 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. Those days carry 52 separate reports between them, two or three on a typical one. 6 of those 17 years produced none at all. The busiest single year was 2011, with 3 hail days. The last five years track the long-run rate, with 6 days since 2022.
2 of the 18 days reached 2 inches or more -- 11%, or about one hail day in 9, the last on 2023-07-02. Those big days do not follow the county's usual calendar: most of them fall in May, not April. 6 of the 18 days reached golf-ball size, 1.75 inches or bigger.
Across the whole of Indiana, see the Indiana hail map and history.
Reports cluster nearest Greenwood -- 8 of the county's 18 hail days -- then Franklin (7), New Whiteland (5), Edinburgh (3) and Bargersville (2). That one town is named on 44% of them.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Greenwood | 6 | 1.75″ |
| Edinburgh | 3 | 1.75″ |
| Franklin | 3 | 1.75″ |
| New Whiteland | 3 | 1.00″ |
| 1 W Franklin | 2 | 1.75″ |
The season runs February through June: 15 of the 18 hail days on record fall in those 5 months (83%). April is the single busiest month, with 5 of them (28%). That peak sits inside the window rather than at either end. Hail has also been reported in July and August, outside that window. Reports span 7 of the 12 calendar months; the other 5 have never produced one.
| Month | Hail days |
|---|---|
| February | 2 |
| March | 2 |
| April | 5 |
| May | 4 |
| June | 2 |
| July | 2 |
| August | 1 |
That day put 1 report on the map, the biggest 1 inch near Franklin. 2 hail days have already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-03-22 | 1.00″ | 1 |
| 2026-02-19 | 1.00″ | 1 |
| 2025-05-16 | 1.00″ | 1 |
| 2024-05-07 | 1.00″ | 2 |
| 2023-07-02 | 2.00″ | 3 |
| 2023-06-25 | 1.50″ | 2 |
| 2017-02-28 | 1.00″ | 2 |
| 2016-04-26 | 1.00″ | 4 |
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 2.75 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: Marion County (39 hail days), Shelby County (13) and Morgan County (25). Johnson County sits in between.
Marion County · Shelby County · Morgan County
Back to the Indiana hail map or the U.S. hail map.
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Johnson County, Indiana only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.