Hail history for Knoxville, Tennessee
NOAA hail reports in and within about 5 km (3 miles) of Knoxville since 1961, with preliminary reports to November 3, 2026.
Readout · Knoxville
- Last hail
- Oct 21, 2025
- 0.75 in, penny size
- Hail days, last 5 years
- 6
- since Nov 3, 2021 · 12 reports
- Largest ever
- 3.00 in
- teacup · May 21, 1998
91 reports on 59 days since 1961 · #4 of 180 Tennessee places
Hail map · Knoxville
- Under 1 in
- 1–1.75 in
- 1.75–2.5 in
- 2.5–4 in
- 4 in +
- No size
For homeowners
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What the record says about Knoxville
The latest hail report in and around Knoxville is from October 21, 2025, 0.75 in (penny size). Since November 3, 2021 there have been 6 separate hail days; the biggest stones in that time were 1.75 in on May 26, 2024.
Over the 20 years 2006–2025, Knoxville logged 45 reports on 26 hail days, about 2.3 reports a year. That is 4.5 times the median Tennessee town on this site (0.5 a year) and ranks #4 of 180 Tennessee cities and towns on this site for all-time reports. Knoxville accounts for 54% of the 170 reports filed in Knox County.
9% of reports with a size were 2 inches (hen egg) or larger, against 3% for the median Tennessee town on this site. The largest hail on record here is 3.00 in (teacup) on May 21, 1998 near Knoxville.
Reports were down 33% in 2016–2025 (18) compared with 2006–2015 (27). The busiest year was 1998, with 14 reports on 7 days. Hail here peaks in May (34% of reports); 80% fall between April and June.
Reports a year 2006–2025 average
- Knoxville 2.3
- Knox County 4.7
- Median Tennessee town on this site 0.5
Hail days 2006–2025
- Knoxville 26
- Knox County 49
- Median Tennessee town on this site 8.5
Share 2 in or larger of sized reports
- Knoxville 9%
- Knox County 5%
- Median Tennessee town on this site 3%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0 | ||||||||||||
| 2025 | 4 | 3 | 1 | 8 | |||||||||
| 2024 | 2 | 2 | |||||||||||
| 2023 | 2 | 2 | |||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 1 | 1 | |||||||||||
| 2019 | 1 | 1 | |||||||||||
| 2018 | 2 | 2 | |||||||||||
| 2017 | 2 | 2 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Oct 21, 2025 | 1 | 0.75 in | — |
| Sep 4, 2025 | 3 | 1.00 in | — |
| Apr 10, 2025 | 4 | 1.50 in | — |
| May 26, 2024 | 2 | 1.75 in | — |
| May 16, 2023 | 1 | 1.00 in | — |
| May 7, 2023 | 1 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | County | Damage | Time · source |
|---|---|---|---|---|---|
| May 21, 1998 | 3.00 inteacup | Knoxville | Knox | — | 17:10 local · NCEI |
| Apr 27, 2011 | 2.75 inbaseball | 2 SE Knoxville | Knox | $30K | 19:15 local · NCEI |
| May 21, 1998 | 2.75 inbaseball | Knoxville | Knox | — | 17:40 local · NCEI |
| May 25, 1962 | 2.50 intennis ball | — | — | — | 17:55 local · NCEI |
| Apr 27, 2011 | 2.00 inhen egg | 2 W Knoxville | Knox | — | 19:05 local · NCEI |
Sizes filed before 1996 are often rough estimates (round numbers like 7.00 or 8.00 in) without an exact spot; they are shown as NOAA filed them.
Size of every report
- Under 1 in 27 30%
- 1–2 in 56 62%
- 2 in + 8 9%
Most recent reports
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Oct 21, 2025 | 0.75 inpenny | 1.32 ENE Neubert | Knox | 13:14 local · NCEI |
| Sep 4, 2025 | 0.75 inpenny | 0.56 W Lyons View | Knox | 13:26 local · NCEI |
| Sep 4, 2025 | 0.75 inpenny | 1.32 ENE Neubert | Knox | 13:18 local · NCEI |
| Sep 4, 2025 | 1.00 inquarter | 1.32 WNW Kingsley | Knox | 13:07 local · NCEI |
| Apr 10, 2025 | 1.50 inping pong ball | 1.32 WSW Shooks | Knox | 17:05 local · NCEI |
| Apr 10, 2025 | 1.00 inquarter | 0.56 E Amherst | Knox | 16:55 local · NCEI |
| Apr 10, 2025 | 1.25 inhalf dollar | 0.89 SW Cowards | Knox | 16:42 local · NCEI |
| Apr 10, 2025 | 1.50 inping pong ball | 0.56 E Gulf Park | Knox | 16:35 local · NCEI |
| May 26, 2024 | 1.75 ingolf ball | 0.69 S Millertown | Knox | 15:57 local · NCEI |
| May 26, 2024 | 1.00 inquarter | 1.49 NNE Fountain City | Knox | 15:45 local · NCEI |
| May 16, 2023 | 1.00 inquarter | 0.89 SE Fountain City | Knox | 16:30 local · NCEI |
| May 7, 2023 | 1.00 inquarter | 1.31 ESE Dante | Knox | 15:54 local · NCEI |
Hail history near Knoxville
Questions about hail in Knoxville
How often does it hail in Knoxville, Tennessee?
91 hail reports have been logged in and within about 5 km (3 miles) of Knoxville since 1961. Over the 20 years 2006–2025 that averages 2.3 reports a year. That ranks #4 of 180 Tennessee places by number of reports.
When is hail season in Knoxville?
Most reports come in May, April, June. May alone accounts for 34% of all reports.
What is the largest hail recorded in Knoxville?
3.00 in (teacup size) on May 21, 1998 near Knoxville. 9% of reports here were 2 inches or larger.
When did it last hail in Knoxville?
The most recent report in this data is from October 21, 2025 (0.75 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Knoxville had in the last five years?
6 separate days with hail reports since November 3, 2021, adding up to 12 reports. The most recent was October 21, 2025.
Where does this hail data come from?
Hail reports come from the NOAA NCEI Storm Events Database, which the National Weather Service compiles from spotter, public, law enforcement and media reports. Recent days use preliminary NWS Local Storm Reports via the Iowa Environmental Mesonet until NOAA publishes final data. Only reported hail is counted, so areas with fewer people tend to have fewer reports.