Hail history for Poweshiek County, Iowa
Every NOAA hail report filed in Poweshiek County since 1960, with preliminary National Weather Service reports to November 3, 2026.
Readout · Poweshiek County
- Last hail
- Oct 24, 2024
- 0.88 in, nickel size
- Hail days, last 5 years
- 6
- since Nov 3, 2021 · 12 reports
- Largest ever
- 3.00 in
- teacup · May 10, 2003
93 reports on 57 days since 1960 · #90 of 100 Iowa counties
Hail map · Poweshiek 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 Poweshiek County
The latest hail report in Poweshiek County is from October 24, 2024, 0.88 in (nickel size). Since November 3, 2021 there have been 6 separate hail days; the biggest stones in that time were 2.75 in on May 7, 2023.
Over the 20 years 2006–2025, Poweshiek County logged 46 reports on 29 hail days, about 2.3 reports a year. That is 38% less than the median Iowa county (3.7 a year) and ranks #90 of 100 Iowa counties for all-time reports. Poweshiek County holds 1% of all 16,032 hail reports in Iowa.
12% 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 3.00 in (teacup) on May 10, 2003 near Grinnell.
Reports were down 41% in 2016–2025 (17) compared with 2006–2015 (29). The busiest year was 2003, with 12 reports on 3 days. Hail here peaks in May (33% of reports); 68% fall between April and June.
Reports a year 2006–2025 average
- Poweshiek County 2.3
- Median Iowa county 3.7
Hail days 2006–2025
- Poweshiek County 29
- Median Iowa county 39.5
Share 2 in or larger of sized reports
- Poweshiek County 12%
- Median Iowa county 7%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0 | ||||||||||||
| 2025 | 0 | ||||||||||||
| 2024 | 1 | 1 | 2 | ||||||||||
| 2023 | 1 | 1 | 7 | 9 | |||||||||
| 2022 | 1 | 1 | |||||||||||
| 2021 | 1 | 1 | |||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 1 | 1 | |||||||||||
| 2018 | 1 | 1 | |||||||||||
| 2017 | 2 | 2 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Oct 24, 2024 | 1 | 0.88 in | — |
| Aug 15, 2024 | 1 | 0.75 in | — |
| May 7, 2023 | 7 | 2.75 in | — |
| Apr 4, 2023 | 1 | 1.00 in | — |
| Mar 31, 2023 | 1 | 1.00 in | — |
| Aug 27, 2022 | 1 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| May 10, 2003 | 3.00 inteacup | Grinnell | $50K | 16:50 local · NCEI |
| May 7, 2023 | 2.75 inbaseball | 4.88 SSE Grinnell Arpt | $50K | 15:50 local · NCEI |
| May 7, 2023 | 2.75 inbaseball | 2.07 SW Grinnell Arpt | — | 15:40 local · NCEI |
| May 10, 2003 | 2.75 inbaseball | Grinnell | $50K | 16:45 local · NCEI |
| May 7, 1962 | 2.75 inbaseball | — | — | 13:48 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 32 34%
- 1–2 in 50 54%
- 2 in + 11 12%
Most recent reports
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| Oct 24, 2024 | 0.88 innickel | 0.86 SE Grinnell | — | 14:30 local · NCEI |
| Aug 15, 2024 | 0.75 inpenny | 1.55 E Grinnell Arpt | — | 17:00 local · NCEI |
| May 7, 2023 | 1.00 inquarter | 1.73 NW Montezuma | — | 16:00 local · NCEI |
| May 7, 2023 | 2.00 inhen egg | 2.58 W Montezuma | — | 16:00 local · NCEI |
| May 7, 2023 | 1.75 ingolf ball | 2.32 NNW Montezuma | — | 15:57 local · NCEI |
| May 7, 2023 | 2.75 inbaseball | 4.88 SSE Grinnell Arpt | $50K | 15:50 local · NCEI |
| May 7, 2023 | 1.50 inping pong ball | 0.69 N Grinnell | — | 15:45 local · NCEI |
| May 7, 2023 | 1.75 ingolf ball | Grinnell | — | 15:42 local · NCEI |
| May 7, 2023 | 2.75 inbaseball | 2.07 SW Grinnell Arpt | — | 15:40 local · NCEI |
| Apr 4, 2023 | 1.00 inquarter | 3.72 SE Sheridan | — | 19:06 local · NCEI |
| Mar 31, 2023 | 1.00 inquarter | 3.72 SE Sheridan | — | 14:54 local · NCEI |
| Aug 27, 2022 | 1.00 inquarter | 1.55 W Grinnell Arpt | — | 15:32 local · NCEI |
Cities and towns in Poweshiek 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 |
|---|---|---|---|
| Deep River | 6 | 5 | Aug 2, 2015 |
| Malcom | 6 | 6 | Sep 1, 2018 |
| Holiday Lake | 4 | 4 | Mar 30, 2005 |
| Searsboro | 4 | 3 | Apr 30, 2010 |
| Hartwick | 3 | 3 | Jun 5, 2011 |
Questions about hail in Poweshiek County
How often does it hail in Poweshiek County, Iowa?
93 hail reports have been logged in Poweshiek County since 1960. Over the 20 years 2006–2025 that averages 2.3 reports a year. That ranks #90 of 100 Iowa counties by number of reports.
When is hail season in Poweshiek County?
Most reports come in May, April, June. May alone accounts for 33% of all reports.
What is the largest hail recorded in Poweshiek County?
3.00 in (teacup size) on May 10, 2003 near Grinnell. 12% of reports here were 2 inches or larger.
When did it last hail in Poweshiek County?
The most recent report in this data is from October 24, 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 Poweshiek County had in the last five years?
6 separate days with hail reports since November 3, 2021, adding up to 12 reports. The most recent was October 24, 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.