Knoxville, TN · Storm history
Hail Reports in Knoxville, Tennessee — Last 90 Days
NOAA Storm Prediction Center logged 1 hail report within 25 miles of Knoxville across 1 storm day, most recently on August 17, 2026. Source: SPC Local Storm Reports (preliminary, may be revised).
Data as of October 24, 2026 (last successful NOAA check). The newest report in the feed is from Oct 23, 2026. The 90-day log is SPC preliminary data. The county history (2017 to June 2026) is the NOAA Storm Events archive, 2014–June 2026; it has no storms after it ends.
- 1.00 inlargest hail near the city, last 90 days (quarter size)
- 22days with hail 1 in or larger in the county, 2014–June 2026
- 109days with 58+ mph thunderstorm wind, 2014–June 2026
- #79 of 209among the cities we cover, by hail days of 1 in or more
Has hail hit my Knoxville roof since it was installed?
County-level hail reports for Knoxville from the NOAA archive this page uses; a county report is not proof of damage at your Knoxville address.
When does hail hit Knoxville?
NOAA NCEI Storm Events, county level, 2014–June 2026
If insurance covers it, what do I pay in Knoxville?
Only if the claim is approved. The ACV math is a straight-line example over a 25-year life; insurers writing Knoxville policies use their own schedules, so check your policy.
Request Sent!
A local contractor will reach out as soon as they review your request.
Hail near Knoxville in the last 90 days
- 1.00 inLargest hail in 90 days (quarter size)
- 1Hail day near Knoxville
- 1SPC report
- August 17, 2026Most recent event
Around Knoxville, the NOAA Storm Prediction Center logged 1 hail report within 25 miles between August 17 and August 17, 2026, spread over 1 storm day. That day brought stones of 1″ or more, and 0 of the 1 Knoxville reports with coordinates fell within 10 miles of the city center. In a typical year Knoxville sees about 4 hail-producing storms.
Knoxville's storm-climate context
Knoxville sits in the Tennessee Valley between the Appalachian and Cumberland ridges, which funnel severe weather through certain corridors while sheltering others. The area receives moderate hail exposure, with April 2011's tornado outbreak impacting the broader metro; the city averages about 4 significant hail days per year and is vulnerable to ice storms in January and February that load roofs and collapse gutters.
University of Tennessee and the Oak Ridge National Laboratory anchor Knoxville's economy, supporting a stable residential market with strong demand for quality roof replacements. Tennessee requires a contractor license for jobs of $25,000 or more, and Knox County is one of nine counties that also require a home improvement license from $3,000, so checking a roofer's license is the first step for Knoxville homeowners.
How close the hail came
On August 17, 2026, a report fell just 15.2 miles from the Knoxville city center, the nearest of 1 (1.00″ at 1 W Maryville). The worst Knoxville day was August 17, 2026: 1 report, largest 1.00″. Near Knoxville, 1 of 1 hail day reached 1″ or larger.
| Distance from city center | Reports | Largest |
|---|---|---|
| Within 5 miles | 0 | — |
| Within 10 miles | 0 | — |
| Within 25 miles | 1 | 1.00″ |
Distances are straight-line from the city center to each SPC report point; reports without coordinates are left out of the table.
Hail events near Knoxville by date
August 17, 2026 1 report, hail up to 1.00″ (quarter size)
| Time (UTC) | Hail size | Location | Distance from Knoxville |
|---|---|---|---|
| 2120 | 1.00″ | 1 W Maryville, Blount County | 15.2 mi |
The Knoxville tables above list preliminary Local Storm Reports from the NOAA Storm Prediction Center. Sizes are reported hailstone diameters; times are UTC. Reports can be added or corrected for about a day after each event. A quiet log does not mean no hail: small or unreported events happen. The closest report in this window landed 15.2 miles from Knoxville's center.
View the 1 Knoxville-area report on a map
On the Knoxville map, circle positions are the NOAA SPC report coordinates; tap a circle for the date and hail size.
Hail size: < 1″ 1–1.75″ ≥ 2″ not recorded
How severe was it? The NWS yardstick, applied to Knoxville's reports
The National Weather Service calls hail severe at 1″ (quarter size) and significant at 2″ (hen-egg size). Scoring Knoxville's 1 area report (filed in Blount County) against that scale: 1 of the Knoxville reports met the severe 1″+ criterion — the size at which asphalt shingles start taking granule loss and bruising that shows up as leaks a season later. At these sizes, damage on a Knoxville roof is rarely visible from the ground, and homeowners policies typically cover it when it is documented promptly.
Hail history in Knoxville: the long picture
County-level NOAA records for the county behind Knoxville, 2014–June 2026. Each figure shows its source. Storms after the archive ends are not in these numbers. Ranks count from 1, the highest.
Knoxville against the 209 cities we cover
- #79of 209Days with hail 1 in or larger in Knoxville: middle
- #75of 209Days with hail 1.75 in or larger (golf ball) in Knoxville: middle
- #11of 209Days with 58+ mph thunderstorm wind in Knoxville: top quarter
- #187of 209Tornadoes in Knoxville: bottom quarter
- #105of 209Reported storm property damage in Knoxville: middle
- #71of 209Share of homes built before 1980 in Knoxville: middle
Hail events by year
| 2017 | 5 |
|---|---|
| 2018 | 2 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 0 |
| 2023 | 8 |
| 2024 | 3 |
| 2025 | 16 |
Years with no record show as 0. In its busiest full year (2025) Knoxville's county logged 16 events; the whole span, 2017 to 2025, holds 37.
Source: NOAA Storm Events Database, county level, 2017–2025Hail history at a glance
- 37Hail events in the county, since 2017 (NOAA)
- 1.75 inLargest hailstone on record
- Oct 21, 2025Last recorded event in the archive
Hail events in Knoxville's county, since 2017: 37, or roughly 4 a year, topped by a 1.75″ stone. Set against that baseline, the 1 hail day near Knoxville in the 90-day window above runs above the long-term average rate. Check your own Knoxville address on the hail risk lookup.
Compared to the Tennessee county median of 30 hail events since 2017, Knoxville's county runs 1.3× above average.
Three ways a storm reaches a roof
Hail
Knoxville's county days with at least one report at that size. Largest stone: 1.75 in.
Source: NOAA Storm Events Database, 2014–June 2026Thunderstorm wind
109 Knoxville's county days with 58+ mph
58 mph is the NWS severe threshold. Strongest gust on record in Knoxville's county: 72 mph on May 20, 2025.
Source: NOAA Storm Events Database, 2014–June 2026Tornadoes
1 in Knoxville's county
Strongest tornado in Knoxville's county: EF2 on the Enhanced Fujita scale.
Source: NOAA Storm Events Database, 2014–June 2026Costliest storm day
Aug 7, 2023
3 reports that day (2 wind, 1 tornado); reported property damage $3,700,000; county FIPS 47093, 2014–June 2026.
Source: NOAA Storm Events, 2014–June 2026Peak storm month
July
In Knoxville's county, 48 of 253 hail, wind and tornado reports (19%) fell in July.
Source: NOAA Storm Events, 2014–June 2026Older homes
59.4% of Knoxville homes built before 1980
About 56,000 of Knoxville's 94,885 housing units (share times units, rounded). Median year built: 1974. Housing units, not roofs: many Knoxville homes have been re-roofed since.
Source: Census ACS (Knoxville city), 2019–2023Year-by-year table with the largest stone
| Year | Recorded hail events | Largest stone |
|---|---|---|
| 2025 busiest largest stone | 16 | 1.75″ |
| 2024 | 3 | 1.75″ |
| 2023 | 8 | 1.00″ |
| 2021 | 1 | 1.00″ |
| 2020 | 1 | 1.00″ |
| 2019 | 1 | 1.00″ |
| 2018 | 2 | 1.00″ |
| 2017 | 5 | 1.75″ |
NOAA Storm Events archive, Knoxville's county. Years missing from the table have no record in the archive. * 2026 covers only January to June: NOAA's file ends there, so it is not counted as the worst year or in the yearly average.
2025 was the standout hail year in Knoxville's county on both counts: the most recorded events (16) and the largest stone (1.75″).
In a market with repeat hail, impact-resistant Class 4 shingles often pay for themselves through insurer premium discounts — worth discussing with a Knoxville roofer if a recent event tips you into a replacement.
Knox County fact sheet for Knoxville homeowners
Housing age, federal disaster declarations and your state's claim deadlines in one place. All three come from public records, county level.
How old are the roofs? Homes in Knox County by decade built
| pre-1940 | 6.7% |
|---|---|
| 1940s | 4.9% |
| 1950s | 8.2% |
| 1960s | 9.7% |
| 1970s | 14.4% |
| 1980s | 13.0% |
| 1990s | 15.7% |
| 2000s | 15.0% |
| 2010s | 10.6% |
| 2020+ | 1.7% |
214,606 homes, median built in 1985. 44.0% date from before 1980 and 12.3% from 2010 on; 64.9% are owner-occupied. The most common decade is the 1990s.
Source: U.S. Census Bureau, American Community Survey · data as of ACS 5-yearWhat to do if your roof was in the hail path
- Read the yard first; stay off the roof. Hail came as near as 15.2 miles to Knoxville (1 W Maryville, August 17, 2026) in the last 90 days. Granule piles under a Knoxville downspout and dents on gutters, vents and screens are the signs to look for.
- Photograph and date everything before repairs. The log's worst day near Knoxville: August 17, 2026, 1 report, largest 1.00 in. Pair that date with your dated photos and a coin-for-scale shot to pin the loss to a storm.
- Have a roofer look before you decide. The single hail day near Knoxville reached 1 inch or more. Nobody on a Knoxville lawn can see bruised shingles or lost granules, so a written scope from a roofer is the test for a claim.
- Watch two deadlines: the policy's and the insurer's. 69 days ago: that is how long since the newest hail day near Knoxville. Your window to report a Knoxville loss sits in the policy; the insurer's answer clocks are state law, linked below.
- Bring the written scope to the adjuster. A Knoxville estimate stays honest when the adjuster receives your contractor's written scope. Step-by-step: the roof insurance claim guide.
Insurer clocks for Knoxville homeowners: rule text, quotes and links on the Tennessee claim-deadlines page (checked 2026-10-09). Not legal advice.
Verified roofing contractors in Knoxville
Contractors PickARoofer has already verified in Knoxville. A badge on a Knoxville contractor means we confirmed an active license or registration in a public registry. Ask any Knoxville roofer for a current certificate of insurance before signing.
FLOW Roofing, LLC
VerifiedMcGuire Roofing & Construction
VerifiedPinpoint Roofing LLC
VerifiedHail in Knoxville — questions homeowners ask
When did hail last hit Knoxville, TN?
The most recent NOAA hail report within 25 miles of Knoxville is from August 17, 2026, with hail up to 1.00″.
How large was the hail near Knoxville?
The largest hailstone reported near Knoxville in the last 90 days measured 1.00″ — about quarter size. Knoxville had 1 hail day of 1″ or more, the size where asphalt shingles start to bruise; the biggest came on August 17, 2026.
Does homeowners insurance cover hail damage in Knoxville?
The latest hail day near Knoxville was August 17, 2026, 69 days ago, a date a claim can point to. Standard homeowners policies generally cover sudden storm damage and not gradual wear. For a Knoxville claim, document the damage before repairs, keep this NOAA log as proof of the August 17, 2026 event date, and read your own policy for its filing deadline: the policy sets that window, not a universal rule.
How often does hail hit the Knoxville area?
In Knoxville's county, NOAA's archive since 2017 shows 37 recorded hail events. Knoxville averages about 4 a year, and its biggest stone on record measured 1.75″.
How close did hail get to Knoxville in the last 90 days?
The closest SPC hail report was 15.2 miles from the Knoxville city center on August 17, 2026, 1.00 in. at 1 W Maryville.
How long does an insurer in Tennessee have to respond to a hail claim?
Tennessee sets the insurer's clocks by rule: it must acknowledge a claim within 30 calendar days and tell the homeowner whether it is accepted or denied within 60 calendar days. For Knoxville homeowners, the deadlines to report and to sue come from the policy and state law. Not legal advice; rule text and links are on the claim-deadlines page, checked 2026-10-09.
Check your own ZIP in Knoxville
The county figures above average over everything inside the county line. For a score tied to your Knoxville address, run your ZIP through the hail risk lookup — Knoxville ZIP codes include 37902, 37909, 37912, 37919, 37922.
Knoxville neighborhoods — hail exposure varies by area
Hail paths track with storm cell movement, not city limits. If you're in Bearden, Sequoyah Hills, Halls, Powell, West Knoxville or Old Sevier, check your specific street against the report locations above — distance from Knoxville's center is listed for each report.
Hail alerts for Knoxville: join the list
We track NOAA hail reports for Knoxville already. Email alerts are not sending yet — leave your address and you'll be on the list when they start. No spam, unsubscribe anytime.
✓ You're on the list — alerts start when we launch email notifications.
More resources
- Roofing contractors in Knoxville
- Storm damage repair in Knoxville
- Roof repair in Knoxville
- Roof inspection in Knoxville
- Insurance claim guide
- Roof replacement costs in Knoxville
- Emergency roof repair
- All recent hail reports
- Hail risk lookup
Sources: NOAA Storm Prediction Center Local Storm Reports (last 90 days, preliminary) and the NOAA NCEI Storm Events Database (county of the city, 2014–June 2026); U.S. Census Bureau American Community Survey 5-year estimates (housing). The Storm Events archive used here ends in 2025, so storms between that date and the start of the 90-day log are not shown. How we collect data. Are you a roofer in Knoxville? See how requests reach contractors.
Free hail inspectionOne local roofer calls youGet quote
How to cite this page
Free to quote with credit, under CC BY 4.0, no permission needed. The numbers are NOAA Storm Prediction Center preliminary reports: unverified, and not confirmed damage to any roof. This is not an official NOAA or NWS product.