Hail history for Gilman, Iowa

NOAA hail reports in and within about 5 km (3 miles) of Gilman since 1969, with preliminary reports to November 3, 2026.

Readout · Gilman

Last hail: Jul 13, 2023; 1.00 in, quarter size
Hail days, last 5 years: 2; since Nov 3, 2021 · 2 reports
Largest ever: 2.00 in; hen egg · Jun 11, 1969

13 reports on 9 days since 1969 · #321 of 483 Iowa places

Hail map · Gilman

Under 1 in
1–1.75 in
1.75–2.5 in
2.5–4 in
4 in +
No size

13 most recent reports with a location; Marshall County is shaded. Open street map

For homeowners

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Hail bruises shingles and cracks seals in ways you can't see from the ground, and most insurers set a claim deadline after the storm. The latest hail report in Gilman is from July 13, 2023. A local roofer can check and document it at no cost.

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What the record says about Gilman

The latest hail report in and around Gilman is from July 13, 2023, 1.00 in (quarter size). Since November 3, 2021 there have been 2 separate hail days; the biggest stones in that time were 1.75 in on March 31, 2023.

Over the 20 years 2006–2025, Gilman logged 11 reports on 7 hail days, about 0.6 reports a year. That is 22% more than the median Iowa town on this site (0.5 a year) and ranks #321 of 483 Iowa cities and towns on this site for all-time reports. Gilman accounts for 9% of the 150 reports filed in Marshall County.

8% 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 June 11, 1969.

Reports were down 43% in 2016–2025 (4) compared with 2006–2015 (7). The busiest year was 2013, with 4 reports on 1 day. Hail here peaks in May (31% of reports); 69% fall between April and June.

Reports a year 2006–2025 average

Gilman 0.6
Marshall County 3.6
Median Iowa town on this site 0.5

Hail days 2006–2025

Gilman 7
Marshall County 42
Median Iowa town on this site 7

Share 2 in or larger of sized reports

Gilman 8%
Marshall County 6%
Median Iowa town on this site 6%

Hail over time

By yearBy monthLast 10 years

Reports per year, 1969–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.

All 13 reports by calendar month.

Reports per month, 2017–2026. Darker cells had more reports.
Year	Mar	Jun	Jul	Total
2026				0
2025				0
2024				0
2023	1		1	2
2022				0
2021				0
2020				0
2019		2		2
2018				0
2017				0

Hail days since Nov 3, 2021

Date	Reports	Largest	Storm page
Jul 13, 2023	1	1.00 in	—
Mar 31, 2023	1	1.75 in	—

Largest hail on record

Largest hail reports in Gilman
Date	Size	Location	County	Damage	Time · source
Jun 11, 1969	2.00 inhen egg	—	Marshall	—	20:20 local · NCEI
Mar 31, 2023	1.75 ingolf ball	0.51 E Gilman	Marshall	—	14:08 local · NCEI
Mar 27, 1991	1.75 ingolf ball	—	Marshall	—	00:08 local · NCEI
May 29, 2013	1.25 inhalf dollar	0.51 E Gilman	Marshall	$5K	15:03 local · NCEI
Jul 13, 2023	1.00 inquarter	2.06 W Gilman	Marshall	—	19:54 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 1 8%
1–2 in 11 85%
2 in + 1 8%

Most recent reports

Most recent hail reports in Gilman
Date	Size	Location	County	Damage	Time · source
Jul 13, 2023	1.00 inquarter	2.06 W Gilman	Marshall	—	19:54 local · NCEI
Mar 31, 2023	1.75 ingolf ball	0.51 E Gilman	Marshall	—	14:08 local · NCEI
Jun 28, 2019	1.00 inquarter	3.17 NNE Newburg	Jasper	—	08:29 local · NCEI
Jun 28, 2019	1.00 inquarter	0.51 E Gilman	Marshall	—	08:22 local · NCEI
Apr 12, 2014	1.00 inquarter	2.14 NNE Newburg	Jasper	$1K	21:49 local · NCEI
May 29, 2013	1.00 inquarter	0.33 NE Gilman	Marshall	—	15:50 local · NCEI
May 29, 2013	1.00 inquarter	1.06 S Dunbar	Marshall	—	15:30 local · NCEI
May 29, 2013	1.25 inhalf dollar	0.51 E Gilman	Marshall	$5K	15:03 local · NCEI
May 29, 2013	1.00 inquarter	0.95 WSW Gilman Arpt	Marshall	—	15:00 local · NCEI
Jul 24, 2009	1.00 inquarter	0.51 E Gilman	Marshall	$2K	19:41 local · NCEI
Jun 19, 2009	0.75 inpenny	2.14 NNE Newburg	Jasper	—	05:55 local · NCEI
Mar 27, 1991	1.75 ingolf ball	—	Marshall	—	00:08 local · NCEI

Hail history near Gilman

Grinnell 17 km · 35
Marshalltown 20 km · 47
Kellogg 20 km · 10
Toledo 21 km · 12
Melbourne 27 km · 10
Newton 29 km · 55
Baxter 31 km · 20
Albion 31 km · 10

Questions about hail in Gilman

How often does it hail in Gilman, Iowa?

13 hail reports have been logged in and within about 5 km (3 miles) of Gilman since 1969. Over the 20 years 2006–2025 that averages 0.6 reports a year. That ranks #321 of 483 Iowa places by number of reports.

When is hail season in Gilman?

Most reports come in May, June, March. May alone accounts for 31% of all reports.

What is the largest hail recorded in Gilman?

2.00 in (hen egg size) on June 11, 1969. 8% of reports here were 2 inches or larger.

When did it last hail in Gilman?

The most recent report in this data is from July 13, 2023 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

How many hail storms has Gilman had in the last five years?

2 separate days with hail reports since November 3, 2021, adding up to 2 reports. The most recent was July 13, 2023.

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.