Hail history for Butler County, Iowa
Every NOAA hail report filed in Butler County since 1959, with preliminary National Weather Service reports to November 3, 2026.
Readout · Butler County
- Last hail
- Sep 4, 2026
- 1.75 in, golf ball size · preliminary
- Hail days, last 5 years
- 11
- since Nov 3, 2021 · 12 reports
- Largest ever
- 4.50 in
- softball · Jun 1, 2001
175 reports on 76 days since 1959 · #27 of 100 Iowa counties
Hail map · Butler 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 Butler County
The latest hail report in Butler County is from September 4, 2026, 1.75 in (golf ball size). Since November 3, 2021 there have been 11 separate hail days; the biggest stones in that time were 2.50 in on April 18, 2025.
Over the 20 years 2006–2025, Butler County logged 101 reports on 36 hail days, about 5.0 reports a year. That is 36% more than the median Iowa county (3.7 a year) and ranks #27 of 100 Iowa counties for all-time reports. Butler County holds 1% of all 16,032 hail reports in Iowa.
6% of reports with a size were 2 inches (hen egg) or larger, against 7% for the median Iowa county. The largest hail on record here is 4.50 in (softball) on June 1, 2001 near 5 S Allison.
Reports were down 34% in 2016–2025 (40) compared with 2006–2015 (61). The busiest year was 2014, with 29 reports on 2 days. Hail here peaks in June (41% of reports); 71% fall between April and June.
Reports a year 2006–2025 average
- Butler County 5.0
- Median Iowa county 3.7
Hail days 2006–2025
- Butler County 36
- Median Iowa county 39.5
Share 2 in or larger of sized reports
- Butler County 6%
- Median Iowa county 7%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | 2 | 3 | ||||||||||
| 2025 | 1 | 1 | 1 | 3 | |||||||||
| 2024 | 1 | 1 | 2 | ||||||||||
| 2023 | 1 | 1 | 1 | 3 | |||||||||
| 2022 | 1 | 1 | |||||||||||
| 2021 | 2 | 2 | |||||||||||
| 2020 | 1 | 4 | 5 | ||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 3 | 3 | |||||||||||
| 2017 | 1 | 14 | 15 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Sep 4, 2026 | 2 | 1.75 in | View |
| Aug 7, 2026 | 1 | 1.25 in | View |
| Sep 16, 2025 | 1 | 0.75 in | — |
| Aug 15, 2025 | 1 | 1.00 in | — |
| Apr 18, 2025 | 1 | 2.50 in | — |
| Jul 15, 2024 | 1 | 0.88 in | — |
| Apr 7, 2024 | 1 | 0.88 in | — |
| Aug 11, 2023 | 1 | 0.88 in | — |
| Jun 24, 2023 | 1 | 1.00 in | — |
| Apr 4, 2023 | 1 | 0.88 in | — |
| Jun 14, 2022 | 1 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| Jun 1, 2001 | 4.50 insoftball | 5 S Allison | $20K | 14:03 local · NCEI |
| May 23, 1998 | 3.00 inteacup | Shell Rock | $50K | 14:58 local · NCEI |
| Jul 16, 2007 | 2.75 inbaseball | 3.13 WSW Farmer | $35K | 18:10 local · NCEI |
| Jul 31, 2003 | 2.75 inbaseball | 2 S Dumont | $25K | 22:57 local · NCEI |
| Jun 19, 2002 | 2.75 inbaseball | Parkersburg | $75K | 06:12 local · NCEI |
Size of every report
- Under 1 in 61 35%
- 1–2 in 103 59%
- 2 in + 11 6%
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| Sep 4, 2026 | 1.75 ingolf ball | 3 NW Parkersburg | 20:28 UTC · NWS prelim. |
| Sep 4, 2026 | 1.00 inquarter | 3 ENE Aplington | 20:23 UTC · NWS prelim. |
| Aug 7, 2026 | 1.25 inhalf dollar | 7 E Greene | 19:54 UTC · NWS prelim. |
| Sep 16, 2025 | 0.75 inpenny | Clarksville | 17:00 local · NCEI |
| Aug 15, 2025 | 1.00 inquarter | Dumont | 13:45 local · NCEI |
| Apr 18, 2025 | 2.50 intennis ball | 3.61 E Packard | 04:07 local · NCEI |
| Jul 15, 2024 | 0.88 innickel | 3.13 ENE Swanton | 15:14 local · NCEI |
| Apr 7, 2024 | 0.88 innickel | 1.47 SSW Allison | 16:06 local · NCEI |
| Aug 11, 2023 | 0.88 innickel | 1.52 E Dumont | 10:04 local · NCEI |
| Jun 24, 2023 | 1.00 inquarter | 2.13 SSW Aredale | 16:08 local · NCEI |
| Apr 4, 2023 | 0.88 innickel | 2.07 S Dumont | 17:50 local · NCEI |
| Jun 14, 2022 | 1.00 inquarter | 2.76 N Austinville | 22:08 local · NCEI |
Cities and towns in Butler County
| Place | Reports | Largest |
|---|---|---|
| Dumont | 25 | 2.75 in |
| Allison | 21 | 1.75 in |
| Clarksville | 18 | 2.00 in |
| Parkersburg | 17 | 2.75 in |
| Greene | 12 | 1.75 in |
| Aredale | 11 | 1.25 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 |
|---|---|---|---|
| New Hartford | 8 | 6 | Jul 16, 2007 |
| Aplington | 7 | 6 | Jun 15, 2017 |
| Bristow | 5 | 4 | Jun 22, 2017 |
| Shell Rock | 3 | 3 | Jul 16, 2007 |
Questions about hail in Butler County
How often does it hail in Butler County, Iowa?
175 hail reports have been logged in Butler County since 1959. Over the 20 years 2006–2025 that averages 5.0 reports a year. That ranks #27 of 100 Iowa counties by number of reports.
When is hail season in Butler County?
Most reports come in June, May, July. June alone accounts for 41% of all reports.
What is the largest hail recorded in Butler County?
4.50 in (softball size) on June 1, 2001 near 5 S Allison. 6% of reports here were 2 inches or larger.
When did it last hail in Butler County?
The most recent report in this data is from September 4, 2026 (1.75 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Butler County had in the last five years?
11 separate days with hail reports since November 3, 2021, adding up to 12 reports. The most recent was September 4, 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.