The most recent reported hail day was 2025-05-08 -- 1 year ago, with nothing reported since. Blount 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 2025-05-08 near Talassee.
Colored swath = NOAA MRMS radar-estimated hail size; dots = NOAA SPC reports in Tennessee. Radar-indicated, not a guarantee of damage.
The last hail here fell on 2025-05-08, around Talassee. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Blount County addresses inside a hail swath above your size threshold into a door-knock list you can export, scoped to your approved markets.
Get free access Check an addressOur US-based call center calls the homeowners in this storm and books roof inspections straight onto your calendar. You work the storm; we fill the schedule. We dial -- you do not have to knock a single door.
See call-center options ->NOAA's Storm Prediction Center has logged 26 separate hail days here since 2010 -- 1.5 a year over 17 years of record. They carry 39 reports in total: most hail days here are logged from a single spot. 3 of those 17 years produced none at all. The busiest single year was 2012, with 5 hail days. The last five years track the long-run rate, with 8 days since 2022.
Most hail here stays under 2 inches: only 1 of the 26 days on record passed it, 4%, the last on 2025-05-08. They land in the same month as everything else, May. Golf-ball size is rarer still: 1.75 inches or more on 4 of the 26 days.
Across the whole of Tennessee, see the Tennessee hail map and history.
Reports cluster nearest Maryville -- 11 of the county's 26 hail days -- then Townsend (4), Alcoa (4), Walland (3) and Talassee (2). That one town is named on 42% of them. Beyond those, NOAA names Friendsville, Greenback and Happy Valley on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Maryville | 8 | 1.75″ |
| Townsend | 3 | 1.25″ |
| Alcoa | 2 | 1.00″ |
| Talassee | 1 | 2.00″ |
| 4 S Maryville | 1 | 1.75″ |
The season runs March through June: 22 of the 26 hail days on record fall in those 4 months (85%). May is the single busiest month, with 10 of them (38%). That peak sits inside the window rather than at either end. Hail has also been reported in February and July, outside that window. Reports span 6 of the 12 calendar months; the other 6 have never produced one.
| Month | Hail days |
|---|---|
| February | 1 |
| March | 4 |
| April | 6 |
| May | 10 |
| June | 2 |
| July | 3 |
That day put 2 reports on the map, the biggest 2 inches near Talassee. No hail day has been reported here yet this year.
| Date | Max hail | Reports |
|---|---|---|
| 2025-05-08 | 2.00″ | 2 |
| 2025-05-02 | 1.00″ | 2 |
| 2025-04-10 | 1.00″ | 2 |
| 2024-05-26 | 1.00″ | 2 |
| 2024-05-06 | 1.00″ | 1 |
| 2024-04-11 | 1.00″ | 1 |
| 2023-04-14 | 1.00″ | 1 |
| 2022-05-06 | 1.00″ | 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: Knox County (37 hail days), Loudon County (14) and Sevier County (23). Blount County sits in between.
Knox County · Loudon County · Sevier County
Back to the Tennessee hail map or the U.S. hail map.
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Blount County, Tennessee only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.