Hail history for Knox County, Kentucky
Every NOAA hail report filed in Knox County since 1980, with preliminary National Weather Service reports to November 3, 2026.
Readout · Knox County
- Last hail
- May 8, 2025
- 1.50 in, ping pong ball size
- Hail days, last 5 years
- 4
- since Nov 3, 2021 · 8 reports
- Largest ever
- 2.50 in
- tennis ball · Mar 31, 1993
50 reports on 36 days since 1980 · #60 of 121 Kentucky counties
Hail map · Knox County
- 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 Knox County
The latest hail report in Knox County is from May 8, 2025, 1.50 in (ping pong ball size). Since November 3, 2021 there have been 4 separate hail days; the biggest stones in that time were 2.00 in on May 8, 2025.
Over the 20 years 2006–2025, Knox County logged 29 reports on 18 hail days, about 1.4 reports a year. That is about the same as the median Kentucky county (1.4 a year) and ranks #60 of 121 Kentucky counties for all-time reports. Knox County holds 1% of all 6,632 hail reports in Kentucky.
4% of reports with a size were 2 inches (hen egg) or larger, against 5% for the median Kentucky county. The largest hail on record here is 2.50 in (tennis ball) on March 31, 1993.
Reports were down 47% in 2016–2025 (10) compared with 2006–2015 (19). The busiest year was 2012, with 5 reports on 3 days. Hail here peaks in April (22% of reports); 66% fall between April and June.
Reports a year 2006–2025 average
- Knox County 1.4
- Median Kentucky county 1.4
Hail days 2006–2025
- Knox County 18
- Median Kentucky county 19
Share 2 in or larger of sized reports
- Knox County 4%
- Median Kentucky county 5%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0 | ||||||||||||
| 2025 | 4 | 4 | |||||||||||
| 2024 | 2 | 2 | |||||||||||
| 2023 | 1 | 1 | |||||||||||
| 2022 | 1 | 1 | |||||||||||
| 2021 | 1 | 1 | |||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 1 | 1 | |||||||||||
| 2017 | 0 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| May 8, 2025 | 4 | 2.00 in | — |
| Sep 24, 2024 | 2 | 1.75 in | — |
| Aug 7, 2023 | 1 | 1.00 in | — |
| May 19, 2022 | 1 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| Mar 31, 1993 | 2.50 intennis ball | — | — | 19:44 local · NCEI |
| May 8, 2025 | 2.00 inhen egg | 0.58 NNE Trosper | $10K | 15:03 local · NCEI |
| Sep 24, 2024 | 1.75 ingolf ball | 0.57 NNW Gray | — | 17:50 local · NCEI |
| Apr 28, 2002 | 1.75 ingolf ball | Barbourville | — | 13:20 local · NCEI |
| May 8, 2025 | 1.50 inping pong ball | 0.71 NNW Bryants Store | — | 17:15 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 23 46%
- 1–2 in 25 50%
- 2 in + 2 4%
Most recent reports
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| May 8, 2025 | 1.50 inping pong ball | 0.71 NNW Bryants Store | — | 17:15 local · NCEI |
| May 8, 2025 | 1.00 inquarter | Barbourville | — | 17:06 local · NCEI |
| May 8, 2025 | 1.00 inquarter | 8.77 NNE Goins | — | 15:06 local · NCEI |
| May 8, 2025 | 2.00 inhen egg | 0.58 NNE Trosper | $10K | 15:03 local · NCEI |
| Sep 24, 2024 | 1.25 inhalf dollar | 0.79 ENE Sprule | — | 18:09 local · NCEI |
| Sep 24, 2024 | 1.75 ingolf ball | 0.57 NNW Gray | — | 17:50 local · NCEI |
| Aug 7, 2023 | 1.00 inquarter | Bimble | — | 11:42 local · NCEI |
| May 19, 2022 | 1.00 inquarter | 0.88 NE Flat Lick | — | 15:43 local · NCEI |
| Apr 8, 2021 | 1.00 inquarter | 2.2 NW Erose | — | 22:12 local · NCEI |
| Jun 26, 2018 | 1.00 inquarter | 2.77 W Permon | — | 13:53 local · NCEI |
| Apr 26, 2012 | 1.25 inhalf dollar | 0.55 E Barbourville | — | 17:16 local · NCEI |
| Apr 26, 2012 | 1.25 inhalf dollar | 0.55 E Barbourville | — | 17:09 local · NCEI |
Cities and towns in Knox County
| Place | Reports | Largest |
|---|---|---|
| Barbourville | 19 | 1.75 in |
Smaller places with fewer than 10 reports
These places have too few reports for a page of their own, so their record lives here.
| Place | Reports | Hail days | Latest |
|---|---|---|---|
| Flat Lick | 5 | 4 | May 8, 2025 |
| Artemus | 2 | 1 | May 8, 2025 |
Questions about hail in Knox County
How often does it hail in Knox County, Kentucky?
50 hail reports have been logged in Knox County since 1980. Over the 20 years 2006–2025 that averages 1.4 reports a year. That ranks #60 of 121 Kentucky counties by number of reports.
When is hail season in Knox County?
Most reports come in April, May, June. April alone accounts for 22% of all reports.
What is the largest hail recorded in Knox County?
2.50 in (tennis ball size) on March 31, 1993. 4% of reports here were 2 inches or larger.
When did it last hail in Knox County?
The most recent report in this data is from May 8, 2025 (1.50 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Knox County had in the last five years?
4 separate days with hail reports since November 3, 2021, adding up to 8 reports. The most recent was May 8, 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.