Hail history for Decatur County, Iowa
Every NOAA hail report filed in Decatur County since 1956, with preliminary National Weather Service reports to November 5, 2026.
Readout · Decatur County
- Last hail
- May 19, 2025
- 2.00 in, hen egg size
- Hail days, last 5 years
- 3
- since Nov 5, 2021 · 3 reports
- Largest ever
- 2.75 in
- baseball · Jun 4, 2005
95 reports on 64 days since 1956 · #87 of 100 Iowa counties
Hail map · Decatur 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 Decatur County
The latest hail report in Decatur County is from May 19, 2025, 2.00 in (hen egg size). Since November 5, 2021 there have been 3 separate hail days; the biggest stones in that time were 2.00 in on May 19, 2025.
Over the 20 years 2006–2025, Decatur County logged 39 reports on 26 hail days, about 1.9 reports a year. That is about half the median Iowa county (3.7 a year) and ranks #87 of 100 Iowa counties for all-time reports. Decatur County holds 1% of all 16,032 hail reports in Iowa.
10% 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 2.75 in (baseball) on June 4, 2005 near Grand River.
Reports were down 66% in 2016–2025 (10) compared with 2006–2015 (29). The busiest year was 2004, with 12 reports on 6 days. Hail here peaks in May (26% of reports); 74% fall between April and June.
Reports a year 2006–2025 average
- Decatur County 1.9
- Median Iowa county 3.7
Hail days 2006–2025
- Decatur County 26
- Median Iowa county 39.5
Share 2 in or larger of sized reports
- Decatur County 10%
- Median Iowa county 7%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0 | ||||||||||||
| 2025 | 1 | 1 | |||||||||||
| 2024 | 1 | 1 | 2 | ||||||||||
| 2023 | 0 | ||||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 1 | 1 | |||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 3 | 3 | |||||||||||
| 2018 | 1 | 1 | |||||||||||
| 2017 | 1 | 1 |
Hail days since Nov 5, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| May 19, 2025 | 1 | 2.00 in | — |
| May 24, 2024 | 1 | 1.75 in | — |
| Apr 30, 2024 | 1 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| Jun 4, 2005 | 2.75 inbaseball | Grand River | $25K | 18:52 local · NCEI |
| Jun 3, 2014 | 2.50 intennis ball | 2.57 S Lamoni | $15K | 18:18 local · NCEI |
| Apr 12, 1981 | 2.50 intennis ball | — | — | 23:05 local · NCEI |
| Jun 3, 2014 | 2.25 inhen egg | 0.52 NNW Lamoni | $20K | 18:07 local · NCEI |
| May 19, 2025 | 2.00 inhen egg | 0.52 W Grand River | — | 15:08 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 33 35%
- 1–2 in 53 56%
- 2 in + 9 9%
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| May 19, 2025 | 2.00 inhen egg | 0.52 W Grand River | 15:08 local · NCEI |
| May 24, 2024 | 1.75 ingolf ball | 1.25 WNW Leon | 02:23 local · NCEI |
| Apr 30, 2024 | 1.00 inquarter | 1.48 NNW Garden Grove | 17:48 local · NCEI |
| Jun 20, 2021 | 1.50 inping pong ball | 1.26 WNW Davis City | 17:43 local · NCEI |
| Jun 25, 2019 | 1.00 inquarter | 4.4 WNW Le Roy | 16:37 local · NCEI |
| Jun 25, 2019 | 1.00 inquarter | 2.94 NE Van Wert | 16:35 local · NCEI |
| Jun 25, 2019 | 1.25 inhalf dollar | 2.94 NE Van Wert | 16:30 local · NCEI |
| May 14, 2018 | 1.00 inquarter | 1.25 WNW Leon | 18:50 local · NCEI |
| Jul 3, 2017 | 0.88 innickel | 0.52 E Van Wert | 13:45 local · NCEI |
| Apr 27, 2016 | 0.88 innickel | 1.25 WNW Leon | 17:18 local · NCEI |
| Sep 17, 2015 | 0.88 innickel | 2.51 ESE Grand River | 21:07 local · NCEI |
| Jun 21, 2015 | 1.00 inquarter | 1.72 WSW Decatur City | 18:16 local · NCEI |
Cities and towns in Decatur 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 |
|---|---|---|---|
| Grand River | 6 | 6 | May 19, 2025 |
| Weldon | 6 | 5 | Jun 25, 2019 |
| Davis City | 5 | 5 | Jun 20, 2021 |
| Garden Grove | 5 | 5 | Apr 30, 2024 |
| Le Roy | 4 | 4 | Jun 25, 2019 |
| Van Wert | 4 | 4 | Jul 3, 2017 |
| Pleasanton | 3 | 3 | Aug 3, 2004 |
Questions about hail in Decatur County
How often does it hail in Decatur County, Iowa?
95 hail reports have been logged in Decatur County since 1956. Over the 20 years 2006–2025 that averages 1.9 reports a year. That ranks #87 of 100 Iowa counties by number of reports.
When is hail season in Decatur County?
Most reports come in May, June, April. May alone accounts for 26% of all reports.
What is the largest hail recorded in Decatur County?
2.75 in (baseball size) on June 4, 2005 near Grand River. 9% of reports here were 2 inches or larger.
When did it last hail in Decatur County?
The most recent report in this data is from May 19, 2025 (2.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 5, 2026.
How many hail storms has Decatur County had in the last five years?
3 separate days with hail reports since November 5, 2021, adding up to 3 reports. The most recent was May 19, 2025.
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.