Hail history for Allison, Iowa
NOAA hail reports in and within about 5 km (3 miles) of Allison since 1969, with preliminary reports to November 3, 2026.
Readout · Allison
- Last hail
- Apr 7, 2024
- 0.88 in, nickel size
- Hail days, last 5 years
- 1
- since Nov 3, 2021 · 1 report
- Largest ever
- 1.75 in
- golf ball · Jun 8, 2008
21 reports on 15 days since 1969 · #143 of 483 Iowa places
Hail map · Allison
- 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 Allison is from April 7, 2024. A local roofer can check and document it at no cost.
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What the record says about Allison
The latest hail report in and around Allison is from April 7, 2024, 0.88 in (nickel size). Since November 3, 2021 there has been one hail day; the biggest stones in that time were 0.88 in on April 7, 2024.
Over the 20 years 2006–2025, Allison logged 14 reports on 9 hail days, about 0.7 reports a year. That is 56% more than the median Iowa town on this site (0.5 a year) and ranks #143 of 483 Iowa cities and towns on this site for all-time reports. Allison accounts for 12% of the 175 reports filed in Butler County.
0% of reports with a size were 2 inches (hen egg) or larger, against 6% for the median Iowa town on this site. The largest hail on record here is 1.75 in (golf ball) on June 8, 2008 near 1.01 W Allison.
Reports were down 73% in 2016–2025 (3) compared with 2006–2015 (11). The busiest year was 2014, with 3 reports on 1 day. Hail here peaks in June (48% of reports); 76% fall between April and June.
Reports a year 2006–2025 average
- Allison 0.7
- Butler County 5.0
- Median Iowa town on this site 0.5
Hail days 2006–2025
- Allison 9
- Butler County 36
- Median Iowa town on this site 7
Share 2 in or larger of sized reports
- Allison 0%
- Butler County 6%
- Median Iowa town on this site 6%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0 | ||||||||||||
| 2025 | 0 | ||||||||||||
| 2024 | 1 | 1 | |||||||||||
| 2023 | 0 | ||||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 1 | 1 | |||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 1 | 1 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Apr 7, 2024 | 1 | 0.88 in | — |
Largest hail on record
| Date | Size | Location | County | Damage | Time · source |
|---|---|---|---|---|---|
| Jun 8, 2008 | 1.75 ingolf ball | 1.01 W Allison | Butler | $10K | 00:49 local · NCEI |
| Jun 8, 2008 | 1.75 ingolf ball | 3.04 W Clarksville | Butler | $5K | 00:43 local · NCEI |
| Jun 8, 2008 | 1.75 ingolf ball | 1.01 W Allison | Butler | $10K | 00:39 local · NCEI |
| Mar 30, 2006 | 1.50 inping pong ball | Des Moines | Polk | $25K | 17:38 local · NCEI |
| Jun 29, 2014 | 1.25 inhalf dollar | 1.48 SSW Wilmar | Butler | $1K | 18:43 local · NCEI |
Size of every report
- Under 1 in 12 57%
- 1–2 in 9 43%
- 2 in + 0 0%
Most recent reports
| Date | Size | Location | County | Damage | Time · source |
|---|---|---|---|---|---|
| Apr 7, 2024 | 0.88 innickel | 1.47 SSW Allison | Butler | — | 16:06 local · NCEI |
| Jul 14, 2021 | 0.75 inpenny | 0.86 SE Allison | Butler | — | 15:48 local · NCEI |
| Jun 22, 2017 | 1.00 inquarter | 0.86 SE Allison Muni Arpt | Butler | — | 20:15 local · NCEI |
| Jun 29, 2014 | 0.75 inpenny | 1.78 NE Allison Muni Arpt | Butler | — | 18:45 local · NCEI |
| Jun 29, 2014 | 0.88 innickel | 1.25 N Allison Muni Arpt | Butler | — | 18:44 local · NCEI |
| Jun 29, 2014 | 1.25 inhalf dollar | 1.48 SSW Wilmar | Butler | $1K | 18:43 local · NCEI |
| Sep 6, 2010 | 0.75 inpenny | 1.01 W Allison | Butler | — | 18:26 local · NCEI |
| Sep 6, 2010 | 0.75 inpenny | 0.86 SE Allison Muni Arpt | Butler | — | 18:23 local · NCEI |
| Apr 24, 2009 | 1.00 inquarter | 2.63 ESE Allison | Butler | $1K | 18:53 local · NCEI |
| Jun 8, 2008 | 1.75 ingolf ball | 1.01 W Allison | Butler | $10K | 00:49 local · NCEI |
| Jun 8, 2008 | 1.75 ingolf ball | 3.04 W Clarksville | Butler | $5K | 00:43 local · NCEI |
| Jun 8, 2008 | 1.75 ingolf ball | 1.01 W Allison | Butler | $10K | 00:39 local · NCEI |
Hail history near Allison
- Clarksville 11 km · 18
- Dumont 15 km · 25
- Greene 16 km · 12
- Aredale 19 km · 11
- Parkersburg 20 km · 17
- Marble Rock 24 km · 28
- Plainfield 24 km · 10
- Waverly 27 km · 22
Questions about hail in Allison
How often does it hail in Allison, Iowa?
21 hail reports have been logged in and within about 5 km (3 miles) of Allison since 1969. Over the 20 years 2006–2025 that averages 0.7 reports a year. That ranks #143 of 483 Iowa places by number of reports.
When is hail season in Allison?
Most reports come in June, May, April. June alone accounts for 48% of all reports.
What is the largest hail recorded in Allison?
1.75 in (golf ball size) on June 8, 2008 near 1.01 W Allison. 0% of reports here were 2 inches or larger.
When did it last hail in Allison?
The most recent report in this data is from April 7, 2024 (0.88 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Allison had in the last five years?
1 separate days with hail reports since November 3, 2021, adding up to 1 reports. The most recent was April 7, 2024.
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.