Hail history for Marble Rock, Iowa
NOAA hail reports in and within about 5 km (3 miles) of Marble Rock since 1962, with preliminary reports to November 3, 2026.
Readout · Marble Rock
- Last hail
- Sep 16, 2025
- 1.75 in, golf ball size
- Hail days, last 5 years
- 1
- since Nov 3, 2021 · 1 report
- Largest ever
- 2.00 in
- hen egg · May 17, 1996
28 reports on 21 days since 1962 · #87 of 483 Iowa places
Hail map · Marble Rock
- 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 Marble Rock
The latest hail report in and around Marble Rock is from September 16, 2025, 1.75 in (golf ball size). Since November 3, 2021 there has been one hail day; the biggest stones in that time were 1.75 in on September 16, 2025.
Over the 20 years 2006–2025, Marble Rock logged 16 reports on 11 hail days, about 0.8 reports a year. That is 78% more than the median Iowa town on this site (0.5 a year) and ranks #87 of 483 Iowa cities and towns on this site for all-time reports. Marble Rock accounts for 17% of the 165 reports filed in Floyd County.
4% 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 2.00 in (hen egg) on May 17, 1996 near Marble Rock.
Reports held about level in 2016–2025 (8) compared with 2006–2015 (8). The busiest year was 2008, with 5 reports on 2 days. Hail here peaks in May (32% of reports); 57% fall between April and June.
Reports a year 2006–2025 average
- Marble Rock 0.8
- Floyd County 4.5
- Median Iowa town on this site 0.5
Hail days 2006–2025
- Marble Rock 11
- Floyd County 43
- Median Iowa town on this site 7
Share 2 in or larger of sized reports
- Marble Rock 4%
- Floyd County 9%
- 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 | 1 | 1 | |||||||||||
| 2024 | 0 | ||||||||||||
| 2023 | 0 | ||||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 2 | 2 | 4 | ||||||||||
| 2017 | 1 | 1 | 1 | 3 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Sep 16, 2025 | 1 | 1.75 in | — |
Largest hail on record
| Date | Size | Location | County | Damage | Time · source |
|---|---|---|---|---|---|
| May 17, 1996 | 2.00 inhen egg | Marble Rock | Floyd | $50K | 23:58 local · NCEI |
| Sep 16, 2025 | 1.75 ingolf ball | 1.22 SE Marble Rock | Floyd | $47K | 16:19 local · NCEI |
| Apr 18, 2002 | 1.75 ingolf ball | Marble Rock | Floyd | — | 15:40 local · NCEI |
| May 17, 1996 | 1.75 ingolf ball | Marble Rock | Floyd | $10K | 23:41 local · NCEI |
| Jun 27, 1980 | 1.75 ingolf ball | — | Floyd | — | 19:20 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 10 36%
- 1–2 in 17 61%
- 2 in + 1 4%
Most recent reports
| Date | Size | Location | County | Damage | Time · source |
|---|---|---|---|---|---|
| Sep 16, 2025 | 1.75 ingolf ball | 1.22 SE Marble Rock | Floyd | $47K | 16:19 local · NCEI |
| Aug 28, 2018 | 1.00 inquarter | 1.38 N Marble Rock | Floyd | — | 07:54 local · NCEI |
| Aug 28, 2018 | 1.00 inquarter | 0.36 SSE Marble Rock | Floyd | — | 07:53 local · NCEI |
| Apr 13, 2018 | 0.75 inpenny | 0.69 S Marble Rock | Floyd | — | 19:07 local · NCEI |
| Apr 13, 2018 | 1.00 inquarter | 0.69 N Marble Rock | Floyd | — | 18:56 local · NCEI |
| Jun 28, 2017 | 0.75 inpenny | 0.69 S Marble Rock | Floyd | — | 14:20 local · NCEI |
| May 15, 2017 | 1.00 inquarter | 0.69 S Marble Rock | Floyd | — | 16:57 local · NCEI |
| Mar 6, 2017 | 0.88 innickel | 0.86 SW Aureola | Floyd | — | 18:52 local · NCEI |
| Oct 4, 2013 | 1.00 inquarter | 0.69 S Marble Rock | Floyd | — | 19:45 local · NCEI |
| Mar 22, 2011 | 0.75 inpenny | 0.69 S Marble Rock | Floyd | — | 18:12 local · NCEI |
| Aug 4, 2008 | 1.00 inquarter | 1.22 SE Marble Rock | Floyd | $10K | 08:23 local · NCEI |
| Aug 4, 2008 | 1.00 inquarter | 1.22 SE Marble Rock | Floyd | $2K | 08:20 local · NCEI |
Hail history near Marble Rock
- Greene 9 km · 12
- Rockford 12 km · 11
- Aredale 18 km · 11
- Rudd 18 km · 10
- Charles City 19 km · 62
- Floyd 21 km · 10
- Nora Springs 23 km · 13
- Allison 24 km · 21
Questions about hail in Marble Rock
How often does it hail in Marble Rock, Iowa?
28 hail reports have been logged in and within about 5 km (3 miles) of Marble Rock since 1962. Over the 20 years 2006–2025 that averages 0.8 reports a year. That ranks #87 of 483 Iowa places by number of reports.
When is hail season in Marble Rock?
Most reports come in May, August, April. May alone accounts for 32% of all reports.
What is the largest hail recorded in Marble Rock?
2.00 in (hen egg size) on May 17, 1996 near Marble Rock. 4% of reports here were 2 inches or larger.
When did it last hail in Marble Rock?
The most recent report in this data is from September 16, 2025 (1.75 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Marble Rock 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 September 16, 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.