Hail history for Marion County, Iowa
Every NOAA hail report filed in Marion County since 1957, with preliminary National Weather Service reports to November 3, 2026.
Readout · Marion County
- Last hail
- May 19, 2025
- 1.00 in, quarter size
- Hail days, last 5 years
- 15
- since Nov 3, 2021 · 34 reports
- Largest ever
- 4.00 in
- grapefruit · Jun 20, 2015
196 reports on 94 days since 1957 · #22 of 100 Iowa counties
Hail map · Marion 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 Marion County
The latest hail report in Marion County is from May 19, 2025, 1.00 in (quarter size). Since November 3, 2021 there have been 15 separate hail days; the biggest stones in that time were 2.00 in on May 21, 2024.
Over the 20 years 2006–2025, Marion County logged 130 reports on 56 hail days, about 6.5 reports a year. That is 76% more than the median Iowa county (3.7 a year) and ranks #22 of 100 Iowa counties for all-time reports. Marion County holds 1% of all 16,032 hail reports in Iowa.
8% 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 4.00 in (grapefruit) on June 20, 2015 near 0.52 E Harvey.
Reports held about level in 2016–2025 (64) compared with 2006–2015 (66). The busiest year was 2010, with 21 reports on 4 days. Hail here peaks in April (31% of reports); 68% fall between April and June.
Reports a year 2006–2025 average
- Marion County 6.5
- Median Iowa county 3.7
Hail days 2006–2025
- Marion County 56
- Median Iowa county 39.5
Share 2 in or larger of sized reports
- Marion County 8%
- 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 | 6 | 2 | 4 | 4 | 16 | ||||||||
| 2023 | 7 | 2 | 2 | 3 | 14 | ||||||||
| 2022 | 3 | 3 | |||||||||||
| 2021 | 7 | 7 | |||||||||||
| 2020 | 1 | 1 | |||||||||||
| 2019 | 3 | 3 | |||||||||||
| 2018 | 1 | 1 | 1 | 3 | |||||||||
| 2017 | 12 | 4 | 16 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| May 19, 2025 | 1 | 1.00 in | — |
| Oct 4, 2024 | 4 | 1.75 in | — |
| Jul 30, 2024 | 4 | 1.25 in | — |
| Jun 25, 2024 | 2 | 1.00 in | — |
| May 27, 2024 | 1 | 0.88 in | — |
| May 21, 2024 | 4 | 2.00 in | — |
| May 19, 2024 | 1 | 1.00 in | — |
| Jul 28, 2023 | 1 | 1.00 in | — |
| Jul 17, 2023 | 2 | 1.00 in | — |
| May 13, 2023 | 1 | 1.00 in | — |
| May 7, 2023 | 1 | 0.88 in | — |
| Apr 19, 2023 | 1 | 0.75 in | — |
| Apr 4, 2023 | 1 | 1.25 in | — |
| Mar 31, 2023 | 7 | 1.50 in | — |
| Sep 17, 2022 | 3 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| Jun 20, 2015 | 4.00 ingrapefruit | 0.52 E Harvey | $25K | 16:26 local · NCEI |
| Jun 20, 2015 | 3.00 inteacup | 0.52 E Harvey | $20K | 16:20 local · NCEI |
| Jul 3, 2001 | 3.00 inteacup | 3 W Otley | $15K | 16:14 local · NCEI |
| Jun 15, 2017 | 2.75 inbaseball | 1.11 WSW Attica | $10K | 20:35 local · NCEI |
| Jun 15, 2017 | 2.75 inbaseball | 2.81 N Columbia | — | 20:32 local · NCEI |
Size of every report
- Under 1 in 58 30%
- 1–2 in 122 62%
- 2 in + 16 8%
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| May 19, 2025 | 1.00 inquarter | 1.25 WSW Knoxville Arpt | 14:57 local · NCEI |
| Oct 4, 2024 | 1.00 inquarter | 0.52 E Attica | 01:45 local · NCEI |
| Oct 4, 2024 | 1.00 inquarter | 3.61 SSE Knoxville Arpt | 01:35 local · NCEI |
| Oct 4, 2024 | 1.75 ingolf ball | 2.49 WNW Pella | 01:15 local · NCEI |
| Oct 4, 2024 | 0.88 innickel | 1.7 WNW Fifield | 01:00 local · NCEI |
| Jul 30, 2024 | 1.25 inhalf dollar | 0.86 NW Pella Muni Arpt | 15:16 local · NCEI |
| Jul 30, 2024 | 0.75 inpenny | 1.7 WSW Lake Red Rock | 13:50 local · NCEI |
| Jul 30, 2024 | 1.00 inquarter | 0.69 N Pella Muni Arpt | 13:09 local · NCEI |
| Jul 30, 2024 | 1.00 inquarter | 1.48 SSE Fifield | 12:43 local · NCEI |
| Jun 25, 2024 | 1.00 inquarter | 2.32 SSE Pleasantville | 17:34 local · NCEI |
| Jun 25, 2024 | 0.75 inpenny | 2.08 NW Pleasantville | 17:20 local · NCEI |
| May 27, 2024 | 0.88 innickel | 0.52 E Attica | 14:43 local · NCEI |
Cities and towns in Marion County
| Place | Reports | Largest |
|---|---|---|
| Knoxville | 47 | 2.75 in |
| Pella | 42 | 2.50 in |
| Pleasantville | 23 | 1.75 in |
| Melcher-Dallas | 18 | 1.75 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 |
|---|---|---|---|
| Bussey | 7 | 7 | Jul 17, 2023 |
| Harvey | 7 | 5 | Jun 20, 2015 |
| Marysville | 2 | 2 | Apr 2, 2006 |
| Swan | 2 | 2 | Jul 28, 2002 |
| Thayer | 2 | 2 | Apr 17, 2025 |
Questions about hail in Marion County
How often does it hail in Marion County, Iowa?
196 hail reports have been logged in Marion County since 1957. Over the 20 years 2006–2025 that averages 6.5 reports a year. That ranks #22 of 100 Iowa counties by number of reports.
When is hail season in Marion County?
Most reports come in April, June, May. April alone accounts for 31% of all reports.
What is the largest hail recorded in Marion County?
4.00 in (grapefruit size) on June 20, 2015 near 0.52 E Harvey. 8% of reports here were 2 inches or larger.
When did it last hail in Marion County?
The most recent report in this data is from May 19, 2025 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Marion County had in the last five years?
15 separate days with hail reports since November 3, 2021, adding up to 34 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.