Hail history for Knox County, Indiana
Every NOAA hail report filed in Knox County since 1975, with preliminary National Weather Service reports to November 3, 2026.
Readout · Knox County
- Last hail
- Mar 22, 2026
- 2.00 in, hen egg size
- Hail days, last 5 years
- 8
- since Nov 3, 2021 · 12 reports
- Largest ever
- 2.50 in
- tennis ball · May 21, 2010
99 reports on 65 days since 1975 · #23 of 93 Indiana 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
Roof damage after hail? Get a free inspection
Hail bruises shingles and cracks seals in ways you can't see from the ground, and most insurers set a claim deadline after the storm. The latest hail report in Knox County is from March 22, 2026. A local roofer can check and document it at no cost.
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What the record says about Knox County
The latest hail report in Knox County is from March 22, 2026, 2.00 in (hen egg size). Since November 3, 2021 there have been 8 separate hail days; the biggest stones in that time were 2.00 in on March 22, 2026.
Over the 20 years 2006–2025, Knox County logged 66 reports on 37 hail days, about 3.3 reports a year. That is 78% more than the median Indiana county (1.9 a year) and ranks #23 of 93 Indiana counties for all-time reports. Knox County holds 1% of all 7,691 hail reports in Indiana.
5% of reports with a size were 2 inches (hen egg) or larger, against 5% for the median Indiana county. The largest hail on record here is 2.50 in (tennis ball) on May 21, 2010 near 2.16 W Fritchton.
Reports were down 43% in 2016–2025 (24) compared with 2006–2015 (42). The busiest year was 2012, with 13 reports on 7 days. Hail here peaks in April (31% of reports); 69% fall between April and June.
Reports a year 2006–2025 average
- Knox County 3.3
- Median Indiana county 1.9
Hail days 2006–2025
- Knox County 37
- Median Indiana county 23
Share 2 in or larger of sized reports
- Knox County 5%
- Median Indiana county 5%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 3 | 3 | |||||||||||
| 2025 | 0 | ||||||||||||
| 2024 | 1 | 1 | 1 | 3 | |||||||||
| 2023 | 1 | 2 | 3 | ||||||||||
| 2022 | 3 | 3 | |||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 1 | 1 | |||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 5 | 2 | 7 | ||||||||||
| 2017 | 1 | 2 | 3 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Mar 22, 2026 | 2 | 2.00 in | — |
| Mar 4, 2026 | 1 | 1.25 in | — |
| May 26, 2024 | 1 | 0.75 in | — |
| Mar 30, 2024 | 1 | 1.00 in | — |
| Feb 28, 2024 | 1 | 1.00 in | — |
| Aug 6, 2023 | 2 | 1.00 in | — |
| Jun 29, 2023 | 1 | 1.75 in | — |
| May 19, 2022 | 3 | 2.00 in | — |
Largest hail on record
| Date | Size | Location | Time · source |
|---|---|---|---|
| May 21, 2010 | 2.50 intennis ball | 2.16 W Fritchton | 14:47 local · NCEI |
| Jul 9, 1992 | 2.50 intennis ball | — | 14:35 local · NCEI |
| Mar 22, 2026 | 2.00 inhen egg | 0.54 W Bicknell | 20:45 local · NCEI |
| May 19, 2022 | 2.00 inhen egg | 0.54 W Sandborn | 16:30 local · NCEI |
| Apr 10, 2001 | 2.00 inhen egg | Bruceville | 10:02 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 34 34%
- 1–2 in 60 61%
- 2 in + 5 5%
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| Mar 22, 2026 | 2.00 inhen egg | 0.54 W Bicknell | 20:45 local · NCEI |
| Mar 22, 2026 | 1.00 inquarter | 0.88 NE Bruceville | 20:42 local · NCEI |
| Mar 4, 2026 | 1.25 inhalf dollar | 0.54 W Oaktown | 09:44 local · NCEI |
| May 26, 2024 | 0.75 inpenny | 2.16 W Fritchton | 19:30 local · NCEI |
| Mar 30, 2024 | 1.00 inquarter | 0.88 SE St Thomas | 19:57 local · NCEI |
| Feb 28, 2024 | 1.00 inquarter | 0.88 SW Freelandville | 02:39 local · NCEI |
| Aug 6, 2023 | 0.88 innickel | Bicknell | 22:08 local · NCEI |
| Aug 6, 2023 | 1.00 inquarter | Bruceville | 21:04 local · NCEI |
| Jun 29, 2023 | 1.75 ingolf ball | 0.88 NW Purcell | 06:45 local · NCEI |
| May 19, 2022 | 1.00 inquarter | 2.78 ENE Fritchton | 16:52 local · NCEI |
| May 19, 2022 | 1.50 inping pong ball | 0.54 E Vincennes | 16:40 local · NCEI |
| May 19, 2022 | 2.00 inhen egg | 0.54 W Sandborn | 16:30 local · NCEI |
Cities and towns in Knox County
| Place | Reports | Largest |
|---|---|---|
| Vincennes | 35 | 2.50 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 |
|---|---|---|---|
| Freelandville | 9 | 9 | Feb 28, 2024 |
| Oaktown | 9 | 9 | Mar 4, 2026 |
| Bicknell | 8 | 7 | Mar 22, 2026 |
| Monroe City | 8 | 7 | Jul 14, 2015 |
| Decker | 7 | 7 | Jun 10, 2018 |
| Bruceville | 5 | 5 | Mar 22, 2026 |
| Sandborn | 4 | 4 | May 19, 2022 |
| Wheatland | 3 | 3 | May 1, 2012 |
| Emison | 2 | 2 | Nov 14, 2011 |
| Ragsdale | 1 | 1 | May 7, 2016 |
| Westphalia | 1 | 1 | Jun 29, 1976 |
Questions about hail in Knox County
How often does it hail in Knox County, Indiana?
99 hail reports have been logged in Knox County since 1975. Over the 20 years 2006–2025 that averages 3.3 reports a year. That ranks #23 of 93 Indiana counties by number of reports.
When is hail season in Knox County?
Most reports come in April, May, March. April alone accounts for 31% of all reports.
What is the largest hail recorded in Knox County?
2.50 in (tennis ball size) on May 21, 2010 near 2.16 W Fritchton. 5% 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 March 22, 2026 (2.00 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?
8 separate days with hail reports since November 3, 2021, adding up to 12 reports. The most recent was March 22, 2026.
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.