Hail history for Jefferson County, Kansas
Every NOAA hail report filed in Jefferson County since 1956, with preliminary National Weather Service reports to November 3, 2026.
Readout · Jefferson County
- Last hail
- Sep 6, 2026
- 1.00 in, quarter size · preliminary
- Hail days, last 5 years
- 15
- since Nov 3, 2021 · 19 reports
- Largest ever
- 4.00 in
- grapefruit · Sep 9, 1992
381 reports on 161 days since 1956 · #49 of 106 Kansas counties
Hail map · Jefferson 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 Jefferson County
The latest hail report in Jefferson County is from September 6, 2026, 1.00 in (quarter size). Since November 3, 2021 there have been 15 separate hail days; the biggest stones in that time were 2.50 in on September 16, 2023.
Over the 20 years 2006–2025, Jefferson County logged 160 reports on 54 hail days, about 8.0 reports a year. That is about the same as the median Kansas county (8.6 a year) and ranks #49 of 106 Kansas counties for all-time reports. Jefferson County holds 1% of all 40,345 hail reports in Kansas.
8% of reports with a size were 2 inches (hen egg) or larger, against 8% for the median Kansas county. The largest hail on record here is 4.00 in (grapefruit) on September 9, 1992.
Reports were down 62% in 2016–2025 (44) compared with 2006–2015 (116). The busiest year was 2005, with 37 reports on 10 days. Hail here peaks in May (24% of reports); 66% fall between April and June.
Reports a year 2006–2025 average
- Jefferson County 8.0
- Median Kansas county 8.6
Hail days 2006–2025
- Jefferson County 54
- Median Kansas county 80
Share 2 in or larger of sized reports
- Jefferson County 8%
- Median Kansas county 8%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | 1 | 1 | 3 | |||||||||
| 2025 | 1 | 1 | |||||||||||
| 2024 | 2 | 1 | 1 | 4 | |||||||||
| 2023 | 2 | 2 | 1 | 4 | 9 | ||||||||
| 2022 | 1 | 1 | 2 | ||||||||||
| 2021 | 1 | 1 | |||||||||||
| 2020 | 4 | 1 | 5 | ||||||||||
| 2019 | 1 | 8 | 9 | ||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 3 | 4 | 1 | 8 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Sep 6, 2026 | 1 | 1.00 in | View |
| Aug 14, 2026 | 1 | 1.25 in | View |
| Apr 17, 2026 | 1 | 1.00 in | — |
| Apr 23, 2025 | 1 | 1.00 in | — |
| Oct 24, 2024 | 1 | 1.00 in | — |
| Jun 13, 2024 | 1 | 0.75 in | — |
| Mar 13, 2024 | 2 | 1.50 in | — |
| Sep 16, 2023 | 4 | 2.50 in | — |
| Jul 4, 2023 | 1 | 1.00 in | — |
| Jun 30, 2023 | 1 | 1.00 in | — |
| Jun 5, 2023 | 1 | 1.00 in | — |
| Apr 14, 2023 | 1 | 0.88 in | — |
| Apr 4, 2023 | 1 | 1.25 in | — |
| Jun 7, 2022 | 1 | 0.88 in | — |
| May 17, 2022 | 1 | 0.88 in | — |
Largest hail on record
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| Sep 9, 1992 | 4.00 ingrapefruit | — | — | 01:25 local · NCEI |
| Jun 19, 1981 | 4.00 ingrapefruit | — | — | 17:45 local · NCEI |
| Sep 18, 2010 | 3.50 inteacup | 1.85 W Mc Louth Arpt | — | 16:11 local · NCEI |
| Aug 19, 2011 | 3.00 inteacup | 5.91 E Nortonville | $3K | 22:57 local · NCEI |
| May 26, 2016 | 2.75 inbaseball | 0.69 N Meriden | —2 injured | 13:45 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 138 36%
- 1–2 in 212 56%
- 2 in + 31 8%
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| Sep 6, 2026 | 1.00 inquarter | 5 SE Winchester | 23:10 UTC · NWS prelim. |
| Aug 14, 2026 | 1.25 inhalf dollar | 2 S Meriden | 04:55 UTC · NWS prelim. |
| Apr 17, 2026 | 1.00 inquarter | 1.75 ENE Valley Falls | 13:29 local · NCEI |
| Apr 23, 2025 | 1.00 inquarter | 2.25 ENE Meriden | 16:12 local · NCEI |
| Oct 24, 2024 | 1.00 inquarter | 4.28 SSW Ozawkie | 19:10 local · NCEI |
| Jun 13, 2024 | 0.75 inpenny | 1.75 NW Valley Falls | 20:10 local · NCEI |
| Mar 13, 2024 | 1.50 inping pong ball | Nortonville | 21:06 local · NCEI |
| Mar 13, 2024 | 1.00 inquarter | 3.84 NE Valley Falls | 20:58 local · NCEI |
| Sep 16, 2023 | 1.75 ingolf ball | 1.75 SE Rock Creek | 16:09 local · NCEI |
| Sep 16, 2023 | 2.00 inhen egg | 1.48 SSE Rock Creek | 16:08 local · NCEI |
| Sep 16, 2023 | 2.50 intennis ball | 2.14 SSE Rock Creek | 16:08 local · NCEI |
| Sep 16, 2023 | 2.50 intennis ball | 0.54 W Rock Creek | 16:03 local · NCEI |
Cities and towns in Jefferson County
| Place | Reports | Largest |
|---|---|---|
| Meriden | 55 | 2.75 in |
| Oskaloosa | 42 | 4.00 in |
| McLouth | 40 | 3.50 in |
| Perry | 34 | 2.75 in |
| Valley Falls | 32 | 1.75 in |
| Ozawkie | 30 | 2.75 in |
| Nortonville | 25 | 1.75 in |
| Williamstown | 16 | 2.75 in |
| Grantville | 15 | 4.00 in |
| Winchester | 13 | 2.00 in |
Questions about hail in Jefferson County
How often does it hail in Jefferson County, Kansas?
381 hail reports have been logged in Jefferson County since 1956. Over the 20 years 2006–2025 that averages 8.0 reports a year. That ranks #49 of 106 Kansas counties by number of reports.
When is hail season in Jefferson County?
Most reports come in May, April, June. May alone accounts for 24% of all reports.
What is the largest hail recorded in Jefferson County?
4.00 in (grapefruit size) on September 9, 1992. 8% of reports here were 2 inches or larger.
When did it last hail in Jefferson County?
The most recent report in this data is from September 6, 2026 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Jefferson County had in the last five years?
15 separate days with hail reports since November 3, 2021, adding up to 19 reports. The most recent was September 6, 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.