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Hail dates in Knox County, Tennessee
The National Weather Service has recorded hail in Knox County on 19 days since 2016 (42 separate reports, 38 of them quarter-size or larger). The largest stone on record was 1.75" (golf ball) on September 4, 2025; the most recent hail was October 21, 2025. Every row below is an official NWS record. Check hail at your exact address, free →
Every hail day in Knox County since 2016
One row per day the NWS logged hail somewhere in the county. The narrative names the town; the free check below narrows it to your address.
| Date | Largest hail | Reports | NWS narrative |
|---|---|---|---|
| 2025-10-21 | 0.75" (penny) | 1 | — |
| 2025-09-04 | 1.75" (golf ball) | 9 | — |
| 2025-04-10 | 1.75" (golf ball) | 6 | — |
| 2024-05-26 | 1.75" (golf ball) | 3 | — |
| 2023-08-12 | 1.00" (quarter) | 1 | — |
| 2023-07-02 | 1.00" (quarter) | 1 | — |
| 2023-06-11 | 1.00" (quarter) | 1 | — |
| 2023-06-05 | 1.00" (quarter) | 1 | — |
| 2023-05-16 | 1.00" (quarter) | 3 | — |
| 2023-05-07 | 1.00" (quarter) | 1 | — |
| 2021-03-27 | 1.00" (quarter) | 1 | — |
| 2020-06-14 | 1.00" (quarter) | 1 | Nickel size hail was reported. |
| 2019-08-01 | 1.00" (quarter) | 1 | Quarter size hail was reported. |
| 2018-06-26 | 1.00" (quarter) | 2 | Quarter size hail was reported. |
| 2017-04-22 | 1.75" (golf ball) | 2 | Golf ball sized hail was reported in Knoxville as well as several locations in the surrounding vicinity. |
| 2017-03-21 | 1.75" (golf ball) | 2 | Golf ball size hail was reported near Clinton Highway and Schaad Road. |
| 2017-02-25 | 1.00" (quarter) | 1 | Quarter sized hail was reported. |
| 2016-07-14 | 1.50" (ping pong ball) | 2 | Ping pong ball size hail was reported. |
| 2016-05-02 | 1.75" (golf ball) | 3 | Golf ball sized hail was reported at Farragut. |
Hail days by year
| Year | Hail days | Reports | Largest |
|---|---|---|---|
| 2025 | 3 | 16 | 1.75" (golf ball) |
| 2024 | 1 | 3 | 1.75" (golf ball) |
| 2023 | 6 | 8 | 1.00" (quarter) |
| 2021 | 1 | 1 | 1.00" (quarter) |
| 2020 | 1 | 1 | 1.00" (quarter) |
| 2019 | 1 | 1 | 1.00" (quarter) |
| 2018 | 1 | 2 | 1.00" (quarter) |
| 2017 | 3 | 5 | 1.75" (golf ball) |
| 2016 | 2 | 5 | 1.75" (golf ball) |
Damaging wind in Knox County
Thunderstorm wind of 58 mph or more (the NWS severe threshold), 182 reports since 2016, strongest 72 mph. 1 tornado recorded in the county in the same period. Wind and tornado records are included in the extended report.
| Date | Peak gust | Reports | NWS narrative |
|---|---|---|---|
| 2025-05-20 | 72 mph | 2 | Severe convective gust measured on an at home anemometer. |
| 2025-12-18 | 70 mph | 3 | A 36 inch diameter oak tree was felled by severe thunderstorm winds and sliced through the side of a home, requiring the fire department … |
| 2024-07-30 | 70 mph | 5 | Several large diameter trees were snapped at the trunk by severe thunderstorm wind gusts along with a large diameter branch from a separa… |
| 2021-06-21 | 70 mph | 2 | Numerous trees were blown down across north Knox County. Radar estimated winds were near 70 mph. |
| 2020-03-29 | 70 mph | 5 | Several trees were reported down with numerous power outages across the western part of the county. Time was estimated by radar. |
| 2021-12-11 | 69 mph | 3 | A tree was blown down and injured one person off Campbell Station Road. |
| 2019-10-31 | 69 mph | 3 | Several trees and power lines were reported down. |
| 2019-06-20 | 69 mph | 1 | A tree was downed onto Shannondale Road. |
Was hail recorded at your Knox County address? Check free
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Address lookup by the U.S. Census Bureau geocoder. Records: NOAA NCEI Storm Events (final) plus SPC preliminary reports for storms newer than the latest compile — see methodology.
Need it in writing for a claim?
The verification report lists every NWS hail (and, in the extended version, wind and tornado) record within 1, 3 and 10 miles of one address, each linked to its official source, with the disputed date called out in plain English. Adjusters can verify every line.
10-year hail history for one address + the disputed-date finding.
15-year window, wind & tornado records, plus a drafted claim-appeal letter.
Questions
What date did hail last hit Knox County?
October 21, 2025, per the NWS Storm Events record. The largest since 2016 was 1.75" (golf ball) on September 4, 2025.
Does a county record prove hail at my house?
No. NWS records are point and path observations. The absence of a nearby report does NOT prove that no hail fell at this address — it means no observation was logged nearby. A report of nearby hail documents the event; it does not by itself prove damage to a specific structure. The free check above shows what was recorded near your specific address, with distances.
Nearby counties
Blount County, TN (17 mi) · Sevier County, TN (26 mi) · Greene County, TN (66 mi) · Laurel County, KY (76 mi) · Pulaski County, KY (83 mi) · Putnam County, TN (86 mi) · Buncombe County, NC (87 mi) · Henderson County, NC (97 mi)
See also: Tennessee hail history by city · all counties