Hail history for Oregon County, Missouri
Every NOAA hail report filed in Oregon County since 1963, with preliminary National Weather Service reports to November 3, 2026.
Readout · Oregon County
- Last hail
- Apr 16, 2026
- 1.00 in, quarter size
- Hail days, last 5 years
- 7
- since Nov 3, 2021 · 10 reports
- Largest ever
- 4.25 in
- grapefruit · Apr 2, 2006
116 reports on 82 days since 1963 · #74 of 116 Missouri counties
Hail map · Oregon 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 Oregon County is from April 16, 2026. A local roofer can check and document it at no cost.
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What the record says about Oregon County
The latest hail report in Oregon County is from April 16, 2026, 1.00 in (quarter size). Since November 3, 2021 there have been 7 separate hail days; the biggest stones in that time were 2.00 in on April 20, 2025.
Over the 20 years 2006–2025, Oregon County logged 59 reports on 39 hail days, about 3.0 reports a year. That is 17% less than the median Missouri county (3.5 a year) and ranks #74 of 116 Missouri counties for all-time reports. Oregon County holds 1% of all 20,478 hail reports in Missouri.
5% of reports with a size were 2 inches (hen egg) or larger, against 6% for the median Missouri county. The largest hail on record here is 4.25 in (grapefruit) on April 2, 2006 near Rover.
Reports were down 41% in 2016–2025 (22) compared with 2006–2015 (37). The busiest year was 2006, with 14 reports on 7 days. Hail here peaks in April (32% of reports); 61% fall between April and June.
Reports a year 2006–2025 average
- Oregon County 3.0
- Median Missouri county 3.5
Hail days 2006–2025
- Oregon County 39
- Median Missouri county 42
Share 2 in or larger of sized reports
- Oregon County 5%
- Median Missouri county 6%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | 1 | |||||||||||
| 2025 | 3 | 1 | 4 | ||||||||||
| 2024 | 1 | 1 | |||||||||||
| 2023 | 2 | 1 | 3 | ||||||||||
| 2022 | 1 | 1 | |||||||||||
| 2021 | 1 | 1 | |||||||||||
| 2020 | 4 | 4 | |||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 2 | 1 | 2 | 5 | |||||||||
| 2017 | 1 | 1 | 2 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Apr 16, 2026 | 1 | 1.00 in | — |
| Apr 20, 2025 | 1 | 2.00 in | — |
| Mar 30, 2025 | 3 | 1.75 in | — |
| May 26, 2024 | 1 | 1.00 in | — |
| Jul 13, 2023 | 1 | 1.50 in | — |
| Jun 14, 2023 | 2 | 1.75 in | — |
| Oct 15, 2022 | 1 | 1.75 in | — |
Largest hail on record
| Date | Size | Location | Time · source |
|---|---|---|---|
| Apr 2, 2006 | 4.25 ingrapefruit | Rover | 15:15 local · NCEI |
| May 3, 2006 | 2.75 inbaseball | 10 E Alton | 13:20 local · NCEI |
| May 13, 1984 | 2.75 inbaseball | — | 17:20 local · NCEI |
| Jul 11, 2009 | 2.50 intennis ball | 3.4 WSW Alton | 20:45 local · NCEI |
| Mar 1, 2007 | 2.50 intennis ball | 0.56 E Thayer | 07:07 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 44 38%
- 1–2 in 66 57%
- 2 in + 6 5%
Most recent reports
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| Apr 16, 2026 | 1.00 inquarter | 0.69 N Myrtle | — | 13:45 local · NCEI |
| Apr 20, 2025 | 2.00 inhen egg | 0.55 E Alton | — | 17:59 local · NCEI |
| Mar 30, 2025 | 1.00 inquarter | 6.91 N Thomasville | — | 16:48 local · NCEI |
| Mar 30, 2025 | 1.75 ingolf ball | 0.69 N Myrtle | — | 15:29 local · NCEI |
| Mar 30, 2025 | 1.00 inquarter | 0.89 NE Thayer | — | 15:05 local · NCEI |
| May 26, 2024 | 1.00 inquarter | 1.8 ENE Thayer | — | 05:08 local · NCEI |
| Jul 13, 2023 | 1.50 inping pong ball | 4.49 W Garfield | $25K | 18:40 local · NCEI |
| Jun 14, 2023 | 1.75 ingolf ball | 2.32 ENE Riverton | — | 11:35 local · NCEI |
| Jun 14, 2023 | 0.75 inpenny | Riverton | — | 11:34 local · NCEI |
| Oct 15, 2022 | 1.75 ingolf ball | 1.49 SSE Thayer | — | 21:17 local · NCEI |
| Apr 9, 2021 | 1.00 inquarter | 0.56 E Thayer | — | 15:04 local · NCEI |
| Apr 20, 2020 | 1.00 inquarter | Koshkonong | — | 15:50 local · NCEI |
Cities and towns in Oregon County
| Place | Reports | Largest |
|---|---|---|
| Thayer | 31 | 2.50 in |
| Alton | 24 | 2.75 in |
| Koshkonong | 10 | 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 |
|---|---|---|---|
| Thomasville | 8 | 8 | Mar 12, 2006 |
Questions about hail in Oregon County
How often does it hail in Oregon County, Missouri?
116 hail reports have been logged in Oregon County since 1963. Over the 20 years 2006–2025 that averages 3.0 reports a year. That ranks #74 of 116 Missouri counties by number of reports.
When is hail season in Oregon County?
Most reports come in April, May, March. April alone accounts for 32% of all reports.
What is the largest hail recorded in Oregon County?
4.25 in (grapefruit size) on April 2, 2006 near Rover. 5% of reports here were 2 inches or larger.
When did it last hail in Oregon County?
The most recent report in this data is from April 16, 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 Oregon County had in the last five years?
7 separate days with hail reports since November 3, 2021, adding up to 10 reports. The most recent was April 16, 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.