Hail History

Hail history for Irwin, Iowa

NOAA hail reports in and within about 5 km (3 miles) of Irwin since 1967, with preliminary reports to November 3, 2026.

Readout · Irwin

Last hail
May 20, 2014
0.75 in, penny size
Hail days, last 5 years
0
since Nov 3, 2021 · 0 reports
Largest ever
2.00 in
hen egg · Jun 27, 1967

11 reports on 10 days since 1967 · #411 of 483 Iowa places

Hail map · Irwin

Irwin Defiance Harlan Panama Audubon Elk Horn 10 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
11 most recent reports with a location; Shelby 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 Irwin is from May 20, 2014. A local roofer can check and document it at no cost.

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What the record says about Irwin

The latest hail report in and around Irwin is from May 20, 2014, 0.75 in (penny size). There has been no hail report here in the five years since November 3, 2021.

Over the 20 years 2006–2025, Irwin logged 3 reports on 3 hail days, about 0.1 reports a year. That is 33% of the median Iowa town on this site (0.5 a year) and ranks #411 of 483 Iowa cities and towns on this site for all-time reports. Irwin accounts for 8% of the 134 reports filed in Shelby County.

9% 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 27, 1967.

The busiest year was 2008, with 2 reports on 2 days. Hail here peaks in May (45% of reports); 91% fall between April and June.

Reports a year 2006–2025 average

  • Irwin 0.1
  • Shelby County 3.0
  • Median Iowa town on this site 0.5

Hail days 2006–2025

  • Irwin 3
  • Shelby County 38
  • Median Iowa town on this site 7

Share 2 in or larger of sized reports

  • Irwin 9%
  • Shelby County 4%
  • Median Iowa town on this site 6%

Hail over time

012 1967: 1 reports, largest 2.00 in 1970 1980 1990 1998: 1 reports, largest 1.75 in 1999: 2 reports, largest 1.00 in 2000 2002: 1 reports, largest 0.75 in 2004: 1 reports, largest 0.88 in 2005: 2 reports, largest 1.25 in 2008: 2 reports, largest 1.00 in 2010 2014: 1 reports, largest 0.75 in 2020
Reports per year, 1967–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
0246 Jan Feb Mar April: 3 reports (27%) Apr May: 5 reports (45%) May June: 2 reports (18%) Jun July: 1 reports (9%) Jul Aug Sep Oct Nov Dec
All 11 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 0
2025 0
2024 0
2023 0
2022 0
2021 0
2020 0
2019 0
2018 0
2017 0

Largest hail on record

Largest hail reports in Irwin
Date Size Location County Time · source
Jun 27, 1967 2.00 inhen egg — Shelby 15:15 local · NCEI
May 23, 1998 1.75 ingolf ball Irwin Shelby 17:30 local · NCEI
May 10, 2005 1.25 inhalf dollar 2 E Irwin Shelby 18:30 local · NCEI
Apr 24, 2008 1.00 inquarter 0.86 SE Irwin Shelby 17:53 local · NCEI
Jul 2, 1999 1.00 inquarter Irwin Shelby 12:45 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

Most recent reports

Most recent hail reports in Irwin
Date Size Location County Time · source
May 20, 2014 0.75 inpenny 3.31 SE Irwin Shelby 15:25 local · NCEI
Jun 11, 2008 0.88 innickel 0.86 SW Irwin Shelby 19:15 local · NCEI
Apr 24, 2008 1.00 inquarter 0.86 SE Irwin Shelby 17:53 local · NCEI
May 10, 2005 1.25 inhalf dollar 2 E Irwin Shelby 18:30 local · NCEI
May 10, 2005 0.75 inpenny 2 E Irwin Shelby 18:02 local · NCEI
May 8, 2004 0.88 innickel Irwin Shelby 19:45 local · NCEI
Apr 17, 2002 0.75 inpenny Irwin Shelby 20:46 local · NCEI
Jul 2, 1999 1.00 inquarter Irwin Shelby 12:45 local · NCEI
Apr 8, 1999 0.75 inpenny Irwin Shelby 10:15 local · NCEI
May 23, 1998 1.75 ingolf ball Irwin Shelby 17:30 local · NCEI
Jun 27, 1967 2.00 inhen egg — Shelby 15:15 local · NCEI

Hail history near Irwin

Questions about hail in Irwin

How often does it hail in Irwin, Iowa?

11 hail reports have been logged in and within about 5 km (3 miles) of Irwin since 1967. Over the 20 years 2006–2025 that averages 0.1 reports a year. That ranks #411 of 483 Iowa places by number of reports.

When is hail season in Irwin?

Most reports come in May, April, June. May alone accounts for 45% of all reports.

What is the largest hail recorded in Irwin?

2.00 in (hen egg size) on June 27, 1967. 9% of reports here were 2 inches or larger.

When did it last hail in Irwin?

The most recent report in this data is from May 20, 2014 (0.75 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

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

None: there has been no hail report in and within about 5 km (3 miles) of Irwin since November 3, 2021. The last one was on May 20, 2014.

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.