Hail history for Oskaloosa, Kansas
NOAA hail reports in and within about 5 km (3 miles) of Oskaloosa since 1967, with preliminary reports to November 3, 2026.
Readout · Oskaloosa
- Last hail
- Jul 4, 2023
- 1.00 in, quarter size
- Hail days, last 5 years
- 2
- since Nov 3, 2021 · 2 reports
- Largest ever
- 4.00 in
- grapefruit · Sep 9, 1992
42 reports on 32 days since 1967 · #158 of 612 Kansas places
Hail map · Oskaloosa
- 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 Oskaloosa
The latest hail report in and around Oskaloosa is from July 4, 2023, 1.00 in (quarter size). Since November 3, 2021 there have been 2 separate hail days; the biggest stones in that time were 1.00 in on July 4, 2023.
Over the 20 years 2006–2025, Oskaloosa logged 18 reports on 13 hail days, about 0.9 reports a year. That is 38% more than the median Kansas town on this site (0.7 a year) and ranks #158 of 612 Kansas cities and towns on this site for all-time reports. Oskaloosa accounts for 11% of the 381 reports filed in Jefferson County.
7% of reports with a size were 2 inches (hen egg) or larger, against 7% for the median Kansas town on this site. The largest hail on record here is 4.00 in (grapefruit) on September 9, 1992.
Reports were down 71% in 2016–2025 (4) compared with 2006–2015 (14). The busiest year was 2005, with 7 reports on 4 days. Hail here peaks in June (36% of reports); 81% fall between April and June.
Reports a year 2006–2025 average
- Oskaloosa 0.9
- Jefferson County 8.0
- Median Kansas town on this site 0.7
Hail days 2006–2025
- Oskaloosa 13
- Jefferson County 54
- Median Kansas town on this site 10
Share 2 in or larger of sized reports
- Oskaloosa 7%
- Jefferson County 8%
- Median Kansas town on this site 7%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0 | ||||||||||||
| 2025 | 0 | ||||||||||||
| 2024 | 0 | ||||||||||||
| 2023 | 1 | 1 | 2 | ||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 1 | 1 | |||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 0 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Jul 4, 2023 | 1 | 1.00 in | — |
| Jun 30, 2023 | 1 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Sep 9, 1992 | 4.00 ingrapefruit | — | Jefferson | 01:25 local · NCEI |
| Jun 30, 2005 | 2.50 intennis ball | 1 N Eskridge | Wabaunsee | 15:42 local · NCEI |
| May 21, 2011 | 2.00 inhen egg | 2.55 ESE Oskaloosa | Jefferson | 19:00 local · NCEI |
| May 10, 2014 | 1.75 ingolf ball | 3.2 SSW Oskaloosa | Jefferson | 17:40 local · NCEI |
| Apr 2, 2006 | 1.75 ingolf ball | 3 SW Oskaloosa | Jefferson | 12:07 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 11 26%
- 1–2 in 28 67%
- 2 in + 3 7%
Most recent reports
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Jul 4, 2023 | 1.00 inquarter | 2.14 W Oskaloosa | Jefferson | 22:33 local · NCEI |
| Jun 30, 2023 | 1.00 inquarter | 0.54 E Oskaloosa | Jefferson | 20:03 local · NCEI |
| Aug 17, 2019 | 1.25 inhalf dollar | 0.54 E Oskaloosa | Jefferson | 01:07 local · NCEI |
| May 26, 2016 | 1.00 inquarter | 2.25 WNW Oskaloosa | Jefferson | 08:02 local · NCEI |
| May 10, 2014 | 1.75 ingolf ball | 3.2 SSW Oskaloosa | Jefferson | 17:40 local · NCEI |
| Jun 1, 2011 | 1.00 inquarter | 1.73 WNW Oskaloosa | Jefferson | 16:41 local · NCEI |
| May 21, 2011 | 2.00 inhen egg | 2.55 ESE Oskaloosa | Jefferson | 19:00 local · NCEI |
| May 21, 2011 | 1.00 inquarter | 2.62 SW Oskaloosa | Jefferson | 18:15 local · NCEI |
| Apr 3, 2011 | 0.88 innickel | 2.62 SW Oskaloosa | Jefferson | 19:42 local · NCEI |
| Sep 18, 2010 | 0.75 inpenny | 2.14 SSW Oskaloosa | Jefferson | 16:02 local · NCEI |
| Jun 9, 2009 | 1.00 inquarter | 0.54 E Oskaloosa | Jefferson | 09:51 local · NCEI |
| Jun 9, 2009 | 1.00 inquarter | 2.62 SW Oskaloosa | Jefferson | 09:46 local · NCEI |
Hail history near Oskaloosa
- McLouth 9 km · 40
- Ozawkie 13 km · 30
- Winchester 13 km · 13
- Perry 17 km · 34
- Williamstown 17 km · 16
- Valley Falls 19 km · 32
- Lecompton 21 km · 24
- Meriden 22 km · 55
Questions about hail in Oskaloosa
How often does it hail in Oskaloosa, Kansas?
42 hail reports have been logged in and within about 5 km (3 miles) of Oskaloosa since 1967. Over the 20 years 2006–2025 that averages 0.9 reports a year. That ranks #158 of 612 Kansas places by number of reports.
When is hail season in Oskaloosa?
Most reports come in June, April, May. June alone accounts for 36% of all reports.
What is the largest hail recorded in Oskaloosa?
4.00 in (grapefruit size) on September 9, 1992. 7% of reports here were 2 inches or larger.
When did it last hail in Oskaloosa?
The most recent report in this data is from July 4, 2023 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Oskaloosa had in the last five years?
2 separate days with hail reports since November 3, 2021, adding up to 2 reports. The most recent was July 4, 2023.
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.