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Hail history for Knox County, TN

Last hail in the countyAug 20, 20260.75 in (penny)

Hail days, last 12 months2

Largest hail since 20062.75 in (baseball)Apr 27, 2011

Hail days since 200649

Days with hail 1 inch or larger39

Tornadoes in the county6

Damaging wind reports in the county322

94 hail reports in Knox County since 2006 on 49 days. The largest stones measured 2.75 in (baseball) on Apr 27, 2011.

Cities in Knox County

Recent hail in Knox County

Date	Hail size	Where	Source
Aug 20, 2026	0.75 in penny	Farragut 1 hail report	NWS storm report (preliminary)
Oct 21, 2025	0.75 in penny	Neubert 1 hail report	NOAA Storm Events
Sep 4, 2025	1.75 in golf ball	Beaver Ridge, Branch Hill, Byington 9 hail reports	NOAA Storm Events
Apr 10, 2025	1.75 in golf ball	Solway, Robinson, Gulf Park 6 hail reports	NOAA Storm Events

One row per day: the largest hail reported in the county that day, the places and the number of reports.

Hail days in Knox County by year

When hail season peaks in Knox County

Damaging thunderstorm winds in Knox County

322 reports of damaging thunderstorm wind in Knox County since 2006, on 185 days. The strongest measured gust was 72 mph on May 20, 2025.

Date	Strongest gust	Where	Source
Aug 17, 2026	damage reported	Powell, Knoxville 2 wind reports	NWS storm report (preliminary)
Aug 14, 2026	damage reported	Knoxville 1 wind report	NWS storm report (preliminary)
May 20, 2026	60 mph, estimated	South Knoxville, Ritta, Crenshaw 5 wind reports	NOAA Storm Events
Feb 20, 2026	60 mph, estimated	Knoxville Downtown, South Knoxville 2 wind reports	NOAA Storm Events
Dec 18, 2025	70 mph, estimated	Sequoyah Hills, Powell, Knoxville 3 wind reports	NOAA Storm Events
Sep 4, 2025	60 mph, estimated	Suburban Hills 1 wind report	NOAA Storm Events
May 20, 2025	72 mph, measured	Lovell, Norwood 2 wind reports	NOAA Storm Events
Apr 25, 2025	60 mph, estimated	West Emory, Mooreland Hgts, Lyons View 4 wind reports	NOAA Storm Events
Mar 15, 2025	60 mph, estimated	Heiskell 1 wind report	NOAA Storm Events
Aug 16, 2024	60 mph, estimated	Lovell, Gulf Park, South Knoxville 3 wind reports	NOAA Storm Events

Severe thunderstorm wind means gusts of 58 mph or more, or wind that caused damage. Measured gusts come from weather stations; estimated ones from spotters and damage surveys.

Filing a roof or car hail claim?

Insurers ask for the date of loss. The dates on this page are when hail was reported near Knox County; hail can hit one street and miss the next, so a report is not proof of damage at your address. A licensed roofer or your insurance adjuster can inspect the roof. Many policies set a time limit for filing a claim — check yours.

Data: NOAA NCEI Storm Events Database (final records through Jun 30, 2026) and National Weather Service Local Storm Reports (preliminary, since then).