Boone County, Indiana Hail Map & History
The most recent reported hail day was 2026-04-14, 153 days ago. Boone County is hit in most years. The largest stone on record here is 2.5 inches, a tennis ball and 2.5 times the National Weather Service's 1 inch severe criterion, reported on 2023-06-25 near Sheridan.
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 2026-04-14, around Lebanon. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Boone 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 Boone County
NOAA's Storm Prediction Center has logged 25 separate hail days here since 2010 -- 1.5 a year over 17 years of record. Those days carry 47 separate reports between them, two or three on a typical one. 5 of those 17 years produced none at all. The busiest single year was 2017, with 4 hail days. The last five years have been quieter than the long run: 5 days since 2022, against 1.7 a year before that.
Most hail here stays under 2 inches: only 2 of the 25 days on record passed it, 8%, the last on 2025-03-19. They land in the same month as everything else, March. Golf-ball size is rarer still: 1.75 inches or more on 6 of the 25 days.
Across the whole of Indiana, see the Indiana hail map and history.
Hardest-hit places in Boone County
Reports cluster nearest Lebanon -- 13 of the county's 25 hail days -- then Thorntown (7), Whitestown (5), Zionsville (3) and Advance (3). That one town is named on 52% of them. Beyond those, NOAA names Elizaville and Jamestown on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Lebanon | 9 | 2.00″ |
| Whitestown | 5 | 1.75″ |
| Thorntown | 5 | 1.50″ |
| Zionsville | 2 | 1.00″ |
| 3 NNW Sheridan | 1 | 2.50″ |
When it hails in Boone County
The season runs March through May: 20 of the 25 hail days on record fall in those 3 months (80%). March is the single busiest month, with 7 of them (28%). That peak opens the window: the season starts at its worst and eases off from there. Hail has also been reported in February, June, 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 | 1 |
| March | 7 |
| April | 6 |
| May | 7 |
| June | 2 |
| July | 1 |
| August | 1 |
Recent Boone County hail days
That day put 1 report on the map, the biggest 1.5 inches near Lebanon. 1 hail day has already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-04-14 | 1.50″ | 1 |
| 2025-03-19 | 2.00″ | 2 |
| 2024-03-14 | 1.75″ | 3 |
| 2023-06-25 | 2.50″ | 2 |
| 2023-05-06 | 1.50″ | 4 |
| 2021-03-27 | 1.00″ | 1 |
| 2020-04-08 | 1.00″ | 1 |
| 2020-03-28 | 1.00″ | 2 |
How to read the Boone 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 2.5 inches, which is the purple band. Look up a street address with the hail history by address tool.
Nearby counties
The nearest counties with a page of their own: Hendricks County (27 hail days), Hamilton County (22) and Montgomery County (18). Boone County sits in between.
Hendricks County · Hamilton County · Montgomery 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, Boone County, Indiana only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.