Hail history for Union County, Ohio
Every NOAA hail report filed in Union County since 1965, with preliminary National Weather Service reports to November 3, 2026.
Readout · Union County
- Last hail
- Mar 22, 2026
- 1.25 in, half dollar size
- Hail days, last 5 years
- 5
- since Nov 3, 2021 · 6 reports
- Largest ever
- 2.00 in
- hen egg · Jun 4, 2020
67 reports on 49 days since 1965 · #64 of 89 Ohio counties
Hail map · Union 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 Union 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 Union County
The latest hail report in Union County is from March 22, 2026, 1.25 in (half dollar size). Since November 3, 2021 there have been 5 separate hail days; the biggest stones in that time were 1.50 in on March 22, 2026.
Over the 20 years 2006–2025, Union County logged 42 reports on 28 hail days, about 2.1 reports a year. That is 14% less than the median Ohio county (2.5 a year) and ranks #64 of 89 Ohio counties for all-time reports. Union County holds 1% of all 9,190 hail reports in Ohio.
3% of reports with a size were 2 inches (hen egg) or larger, against 3% for the median Ohio county. The largest hail on record here is 2.00 in (hen egg) on June 4, 2020 near 0.87 SE Milford Center.
Reports were down 44% in 2016–2025 (15) compared with 2006–2015 (27). The busiest year was 2011, with 12 reports on 6 days. Hail here peaks in June (31% of reports); 66% fall between April and June.
Reports a year 2006–2025 average
- Union County 2.1
- Median Ohio county 2.5
Hail days 2006–2025
- Union County 28
- Median Ohio county 31
Share 2 in or larger of sized reports
- Union County 3%
- Median Ohio county 3%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 2 | 2 | |||||||||||
| 2025 | 1 | 1 | |||||||||||
| 2024 | 1 | 1 | |||||||||||
| 2023 | 1 | 1 | 2 | ||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 1 | 5 | 6 | ||||||||||
| 2019 | 2 | 2 | |||||||||||
| 2018 | 2 | 2 | |||||||||||
| 2017 | 0 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Mar 22, 2026 | 2 | 1.50 in | — |
| May 2, 2025 | 1 | 0.75 in | — |
| Mar 14, 2024 | 1 | 1.00 in | — |
| Jul 24, 2023 | 1 | 0.88 in | — |
| Apr 21, 2023 | 1 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | Time · source |
|---|---|---|---|
| Jun 4, 2020 | 2.00 inhen egg | 0.87 SE Milford Center | 11:28 local · NCEI |
| Jun 29, 2012 | 2.00 inhen egg | 0.69 N Marysville | 15:43 local · NCEI |
| Jun 4, 2020 | 1.75 ingolf ball | 0.69 N Marysville | 11:26 local · NCEI |
| Aug 1, 2011 | 1.75 ingolf ball | 3 ESE Plain City | 16:50 local · NCEI |
| Jun 17, 2011 | 1.75 ingolf ball | Plain City | 14:40 local · NCEI |
Size of every report
- Under 1 in 29 43%
- 1–2 in 36 54%
- 2 in + 2 3%
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| Mar 22, 2026 | 1.25 inhalf dollar | 1.48 SSE New California | 21:42 local · NCEI |
| Mar 22, 2026 | 1.50 inping pong ball | 1.06 E Unionville Center | 21:00 local · NCEI |
| May 2, 2025 | 0.75 inpenny | 1.72 ENE Essex | 12:07 local · NCEI |
| Mar 14, 2024 | 1.00 inquarter | Richwood | 19:38 local · NCEI |
| Jul 24, 2023 | 0.88 innickel | 1.38 N Richwood | 17:24 local · NCEI |
| Apr 21, 2023 | 1.00 inquarter | 0.87 SE Plain City | 15:35 local · NCEI |
| Jun 4, 2020 | 2.00 inhen egg | 0.87 SE Milford Center | 11:28 local · NCEI |
| Jun 4, 2020 | 1.00 inquarter | 0.69 S Marysville | 11:26 local · NCEI |
| Jun 4, 2020 | 1.75 ingolf ball | 0.69 N Marysville | 11:26 local · NCEI |
| Jun 4, 2020 | 0.75 inpenny | 0.69 S Marysville | 11:25 local · NCEI |
| Jun 4, 2020 | 1.50 inping pong ball | 0.53 W Milford Center | 11:19 local · NCEI |
| Mar 28, 2020 | 1.00 inquarter | 3.46 WSW Unionville Center | 19:38 local · NCEI |
Cities and towns in Union County
| Place | Reports | Largest |
|---|---|---|
| Marysville | 25 | 2.00 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 |
|---|---|---|---|
| Milford Center | 5 | 4 | Jun 4, 2020 |
| Raymond | 5 | 5 | Jun 13, 2003 |
| Richwood | 5 | 5 | Mar 14, 2024 |
| New California | 3 | 3 | May 21, 2018 |
| Unionville Center | 3 | 3 | Mar 28, 2020 |
| Magnetic Springs | 2 | 2 | Jun 4, 2011 |
Questions about hail in Union County
How often does it hail in Union County, Ohio?
67 hail reports have been logged in Union County since 1965. Over the 20 years 2006–2025 that averages 2.1 reports a year. That ranks #64 of 89 Ohio counties by number of reports.
When is hail season in Union County?
Most reports come in June, May, April. June alone accounts for 31% of all reports.
What is the largest hail recorded in Union County?
2.00 in (hen egg size) on June 4, 2020 near 0.87 SE Milford Center. 3% of reports here were 2 inches or larger.
When did it last hail in Union County?
The most recent report in this data is from March 22, 2026 (1.25 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Union County had in the last five years?
5 separate days with hail reports since November 3, 2021, adding up to 6 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.