Hail history for Unionville, Missouri
NOAA hail reports in and within about 5 km (3 miles) of Unionville since 1960, with preliminary reports to November 5, 2026.
Readout · Unionville
- Last hail
- Mar 31, 2023
- 1.00 in, quarter size
- Hail days, last 5 years
- 1
- since Nov 5, 2021 · 1 report
- Largest ever
- 2.75 in
- baseball · Sep 30, 1977
30 reports on 28 days since 1960 · #135 of 491 Missouri places
Hail map · Unionville
- Under 1 in
- 1–1.75 in
- 1.75–2.5 in
- 2.5–4 in
- 4 in +
- No size
For homeowners
Concerned about your roof after hail?
Send a request to Moxisync Labs for review. The latest hail report in Unionville is from March 31, 2023. We’re building local roofer coverage. Submitting a request does not guarantee a quote or book an inspection.
Phone line opening soon
What the record says about Unionville
The latest hail report in and around Unionville is from March 31, 2023, 1.00 in (quarter size). Since November 5, 2021 there has been one hail day; the biggest stones in that time were 1.00 in on March 31, 2023.
Over the 20 years 2006–2025, Unionville logged 19 reports on 17 hail days, about 0.9 reports a year. That is about twice the median Missouri town on this site (0.5 a year) and ranks #135 of 491 Missouri cities and towns on this site for all-time reports. Unionville accounts for 39% of the 76 reports filed in Putnam County.
7% of reports with a size were 2 inches (hen egg) or larger, against 5% for the median Missouri town on this site. The largest hail on record here is 2.75 in (baseball) on September 30, 1977.
Reports were down 73% in 2016–2025 (4) compared with 2006–2015 (15). The busiest year was 2008, with 5 reports on 5 days. Hail here peaks in June (37% of reports); 73% fall between April and June.
Reports a year 2006–2025 average
- Unionville 0.9
- Putnam County 2.5
- Median Missouri town on this site 0.5
Hail days 2006–2025
- Unionville 17
- Putnam County 33
- Median Missouri town on this site 9
Share 2 in or larger of sized reports
- Unionville 7%
- Putnam County 11%
- Median Missouri town on this site 5%
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 | |||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 1 | 1 | |||||||||||
| 2019 | 1 | 1 | |||||||||||
| 2018 | 1 | 1 | |||||||||||
| 2017 | 0 |
Hail days since Nov 5, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Mar 31, 2023 | 1 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Sep 30, 1977 | 2.75 inbaseball | — | Putnam | 12:15 local · NCEI |
| Jun 14, 1974 | 2.75 inbaseball | — | Putnam | 19:15 local · NCEI |
| Jun 12, 2008 | 1.75 ingolf ball | Unionville | Putnam | 15:14 local · NCEI |
| Aug 15, 1997 | 1.75 ingolf ball | Unionville | Putnam | 21:20 local · NCEI |
| Jul 28, 1992 | 1.75 ingolf ball | — | Putnam | 17:40 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 10 33%
- 1–2 in 18 60%
- 2 in + 2 7%
Most recent reports
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Mar 31, 2023 | 1.00 inquarter | 2.1 E Midway | Putnam | 14:38 local · NCEI |
| May 24, 2020 | 1.00 inquarter | Unionville | Putnam | 12:50 local · NCEI |
| Jun 25, 2019 | 1.00 inquarter | 0.53 W Unionville | Putnam | 18:35 local · NCEI |
| Jun 28, 2018 | 1.50 inping pong ball | 0.53 W Unionville | Putnam | 12:03 local · NCEI |
| Jun 20, 2015 | 1.25 inhalf dollar | Unionville | Putnam | 19:05 local · NCEI |
| May 12, 2014 | 0.75 inpenny | 2.1 E Midway | Putnam | 12:55 local · NCEI |
| May 25, 2012 | 1.00 inquarter | Unionville | Putnam | 16:45 local · NCEI |
| May 25, 2012 | 1.00 inquarter | Unionville | Putnam | 16:42 local · NCEI |
| May 25, 2012 | 1.25 inhalf dollar | 2.07 S Unionville | Putnam | 16:40 local · NCEI |
| Jun 26, 2011 | 0.88 innickel | 1.26 ESE Unionville Muni Arpt | Putnam | 21:22 local · NCEI |
| Jun 14, 2011 | 0.88 innickel | Unionville | Putnam | 21:04 local · NCEI |
| Apr 3, 2011 | 1.00 inquarter | Unionville | Putnam | 18:23 local · NCEI |
Hail history near Unionville
- Green City 24 km · 12
- Lucerne 24 km · 10
- Newtown 30 km · 10
- Milan 32 km · 25
- Novinger 37 km · 14
- Lancaster 40 km · 14
- Mercer 45 km · 12
- Kirksville 48 km · 42
Questions about hail in Unionville
How often does it hail in Unionville, Missouri?
30 hail reports have been logged in and within about 5 km (3 miles) of Unionville since 1960. Over the 20 years 2006–2025 that averages 0.9 reports a year. That ranks #135 of 491 Missouri places by number of reports.
When is hail season in Unionville?
Most reports come in June, May, April. June alone accounts for 37% of all reports.
What is the largest hail recorded in Unionville?
2.75 in (baseball size) on September 30, 1977. 7% of reports here were 2 inches or larger.
When did it last hail in Unionville?
The most recent report in this data is from March 31, 2023 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 5, 2026.
How many hail storms has Unionville had in the last five years?
1 separate days with hail reports since November 5, 2021, adding up to 1 reports. The most recent was March 31, 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.