Hail history for Olmsted County, Minnesota
Every NOAA hail report filed in Olmsted County since 1959, with preliminary National Weather Service reports to November 3, 2026.
Readout · Olmsted County
- Last hail
- Aug 18, 2026
- 1.00 in, quarter size · preliminary
- Hail days, last 5 years
- 18
- since Nov 3, 2021 · 47 reports
- Largest ever
- 3.00 in
- teacup · Aug 16, 1963
373 reports on 154 days since 1959 · #6 of 88 Minnesota counties
Hail map · Olmsted 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 Olmsted County
The latest hail report in Olmsted County is from August 18, 2026, 1.00 in (quarter size). Since November 3, 2021 there have been 18 separate hail days; the biggest stones in that time were 1.75 in on April 17, 2026.
Over the 20 years 2006–2025, Olmsted County logged 187 reports on 64 hail days, about 9.3 reports a year. That is about twice the median Minnesota county (3.9 a year) and ranks #6 of 88 Minnesota counties for all-time reports. Olmsted County holds 2% of all 15,925 hail reports in Minnesota.
4% of reports with a size were 2 inches (hen egg) or larger, against 7% for the median Minnesota county. The largest hail on record here is 3.00 in (teacup) on August 16, 1963.
Reports held about level in 2016–2025 (90) compared with 2006–2015 (97). The busiest year was 2017, with 27 reports on 5 days. Hail here peaks in May (28% of reports); 59% fall between April and June.
Reports a year 2006–2025 average
- Olmsted County 9.3
- Median Minnesota county 3.9
Hail days 2006–2025
- Olmsted County 64
- Median Minnesota county 42
Share 2 in or larger of sized reports
- Olmsted County 4%
- Median Minnesota county 7%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 3 | 2 | 1 | 6 | |||||||||
| 2025 | 1 | 3 | 1 | 1 | 1 | 7 | |||||||
| 2024 | 3 | 3 | |||||||||||
| 2023 | 7 | 1 | 1 | 9 | |||||||||
| 2022 | 2 | 17 | 3 | 22 | |||||||||
| 2021 | 1 | 1 | 1 | 1 | 4 | ||||||||
| 2020 | 1 | 1 | 2 | ||||||||||
| 2019 | 1 | 1 | 1 | 1 | 4 | ||||||||
| 2018 | 8 | 2 | 1 | 11 | |||||||||
| 2017 | 1 | 9 | 11 | 6 | 27 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Aug 18, 2026 | 1 | 1.00 in | View |
| Jun 10, 2026 | 2 | 1.25 in | — |
| Apr 17, 2026 | 3 | 1.75 in | — |
| Aug 27, 2025 | 1 | 1.00 in | — |
| Jul 2, 2025 | 1 | 0.75 in | — |
| May 15, 2025 | 1 | 1.00 in | — |
| Apr 28, 2025 | 3 | 1.00 in | — |
| Mar 28, 2025 | 1 | 0.88 in | — |
| May 21, 2024 | 1 | 0.75 in | — |
| May 20, 2024 | 2 | 1.25 in | — |
| Oct 24, 2023 | 1 | 0.75 in | — |
| Aug 11, 2023 | 1 | 1.00 in | — |
| Jul 22, 2023 | 7 | 1.50 in | — |
| Jul 23, 2022 | 3 | 1.00 in | — |
| May 19, 2022 | 11 | 1.50 in | — |
| May 11, 2022 | 3 | 1.75 in | — |
| May 9, 2022 | 3 | 0.88 in | — |
| Apr 12, 2022 | 2 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| Aug 16, 1963 | 3.00 inteacup | — | — | 17:40 local · NCEI |
| Jun 29, 1996 | 2.75 inbaseball | Oronoco | — | 15:27 local · NCEI |
| Jul 30, 1994 | 2.75 inbaseball | High Forest | $5K | 15:50 local · NCEI |
| May 30, 1994 | 2.75 inbaseball | Salem Corners | $500 | 18:00 local · NCEI |
| May 27, 1991 | 2.75 inbaseball | — | — | 14:40 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 160 43%
- 1–2 in 197 53%
- 2 in + 16 4%
Most recent reports
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| Aug 18, 2026 | 1.00 inquarter | 2 SSE Viola | — | 19:39 UTC · NWS prelim. |
| Jun 10, 2026 | 1.25 inhalf dollar | 2.13 NNE Rochester | — | 15:43 local · NCEI |
| Jun 10, 2026 | 0.88 innickel | 2.81 N Rochester | — | 15:32 local · NCEI |
| Apr 17, 2026 | 1.75 ingolf ball | 2.81 N Rochester | $150K | 13:13 local · NCEI |
| Apr 17, 2026 | 1.00 inquarter | 3.14 SSE Douglas | — | 13:13 local · NCEI |
| Apr 17, 2026 | 1.00 inquarter | 1.98 W Oronoco | — | 13:01 local · NCEI |
| Aug 27, 2025 | 1.00 inquarter | 2.11 WSW (Rst)rochester Muni | — | 18:33 local · NCEI |
| Jul 2, 2025 | 0.75 inpenny | 3.29 ESE Salem Corners | — | 17:39 local · NCEI |
| May 15, 2025 | 1.00 inquarter | 3.28 ENE Rochester | — | 13:30 local · NCEI |
| Apr 28, 2025 | 1.00 inquarter | 1.64 ENE Marion | — | 18:59 local · NCEI |
| Apr 28, 2025 | 0.75 inpenny | 2.87 SE Douglas | — | 18:23 local · NCEI |
| Apr 28, 2025 | 0.75 inpenny | 2.84 WNW Rochester | — | 18:22 local · NCEI |
Cities and towns in Olmsted County
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 |
|---|---|---|---|
| Marion | 4 | 3 | Apr 28, 2025 |
| High Forest | 1 | 1 | Aug 11, 2023 |
Questions about hail in Olmsted County
How often does it hail in Olmsted County, Minnesota?
373 hail reports have been logged in Olmsted County since 1959. Over the 20 years 2006–2025 that averages 9.3 reports a year. That ranks #6 of 88 Minnesota counties by number of reports.
When is hail season in Olmsted County?
Most reports come in May, June, August. May alone accounts for 28% of all reports.
What is the largest hail recorded in Olmsted County?
3.00 in (teacup size) on August 16, 1963. 4% of reports here were 2 inches or larger.
When did it last hail in Olmsted County?
The most recent report in this data is from August 18, 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 Olmsted County had in the last five years?
18 separate days with hail reports since November 3, 2021, adding up to 47 reports. The most recent was August 18, 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.