Hail History

Hail history for Little Sioux, Iowa

NOAA hail reports in and within about 5 km (3 miles) of Little Sioux since 1985, with preliminary reports to November 3, 2026.

Readout · Little Sioux

Last hail
Apr 23, 2026
1.25 in, half dollar size
Hail days, last 5 years
3
since Nov 3, 2021 · 3 reports
Largest ever
2.00 in
hen egg · Jun 29, 2017

19 reports on 18 days since 1985 · #183 of 483 Iowa places

Hail map · Little Sioux

Little Sioux River Sioux Mondamin Magnolia Modale Logan Woodbine 10 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
19 most recent reports with a location; Harrison County is shaded. Open street map

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What the record says about Little Sioux

The latest hail report in and around Little Sioux is from April 23, 2026, 1.25 in (half dollar size). Since November 3, 2021 there have been 3 separate hail days; the biggest stones in that time were 1.50 in on June 12, 2024.

Over the 20 years 2006–2025, Little Sioux logged 9 reports on 9 hail days, about 0.5 reports a year. That is about the same as the median Iowa town on this site (0.5 a year) and ranks #183 of 483 Iowa cities and towns on this site for all-time reports. Little Sioux accounts for 9% of the 218 reports filed in Harrison County.

11% 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 29, 2017 near 2.07 N River Sioux.

Reports were up 25% in 2016–2025 (5) compared with 2006–2015 (4). The busiest year was 2002, with 3 reports on 3 days. Hail here peaks in June (42% of reports); 68% fall between April and June.

Reports a year 2006–2025 average

  • Little Sioux 0.5
  • Harrison County 4.3
  • Median Iowa town on this site 0.5

Hail days 2006–2025

  • Little Sioux 9
  • Harrison County 53
  • Median Iowa town on this site 7

Share 2 in or larger of sized reports

  • Little Sioux 11%
  • Harrison County 6%
  • Median Iowa town on this site 6%

Hail over time

0123 1985: 1 reports, largest 0.75 in 1986: 1 reports, largest 2.00 in 1990 1991: 1 reports, largest 0.75 in 1996: 2 reports, largest 1.00 in 2000 2001: 1 reports, largest 0.75 in 2002: 3 reports, largest 1.50 in 2008: 1 reports, largest 0.75 in 2009: 1 reports, largest 1.00 in 2010 2014: 2 reports, largest 1.00 in 2017: 1 reports, largest 2.00 in 2019: 2 reports, largest 1.75 in 2020 2023: 1 reports, largest 1.00 in 2024: 1 reports, largest 1.50 in 2026: 1 reports, largest 1.25 in
Reports per year, 1985–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
02468 Jan Feb Mar April: 4 reports (21%) Apr May: 1 reports (5%) May June: 8 reports (42%) Jun July: 2 reports (11%) Jul Aug September: 4 reports (21%) Sep Oct Nov Dec
All 19 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 1 1
2025 0
2024 1 1
2023 1 1
2022 0
2021 0
2020 0
2019 2 2
2018 0
2017 1 1

Hail days since Nov 3, 2021

DateReportsLargestStorm page
Apr 23, 2026 1 1.25 in —
Jun 12, 2024 1 1.50 in —
Sep 23, 2023 1 1.00 in —

Largest hail on record

Largest hail reports in Little Sioux
Date Size Location County Time · source
Jun 29, 2017 2.00 inhen egg 2.07 N River Sioux Harrison 17:55 local · NCEI
Apr 26, 1986 2.00 inhen egg — Harrison 19:53 local · NCEI
Sep 24, 2019 1.75 ingolf ball 1.38 N Little Sioux Harrison 16:35 local · NCEI
Jun 12, 2024 1.50 inping pong ball 2 N Little Sioux Harrison 19:21 local · NCEI
Jul 25, 2002 1.50 inping pong ball 2 E Little Sioux Harrison 02:32 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 Little Sioux
Date Size Location County Time · source
Apr 23, 2026 1.25 inhalf dollar 1.24 NW California Jct Harrison 14:00 local · NCEI
Jun 12, 2024 1.50 inping pong ball 2 N Little Sioux Harrison 19:21 local · NCEI
Sep 23, 2023 1.00 inquarter 0.86 NE Little Sioux Harrison 10:00 local · NCEI
Sep 24, 2019 1.75 ingolf ball 1.38 N Little Sioux Harrison 16:35 local · NCEI
Sep 14, 2019 0.88 innickel 2.07 N River Sioux Harrison 08:10 local · NCEI
Jun 29, 2017 2.00 inhen egg 2.07 N River Sioux Harrison 17:55 local · NCEI
Jul 5, 2014 1.00 inquarter 2.07 N River Sioux Harrison 02:55 local · NCEI
Jun 20, 2014 1.00 inquarter 0.69 N Little Sioux Harrison 17:20 local · NCEI
Jun 23, 2009 1.00 inquarter 2.48 SE Little Sioux Harrison 14:13 local · NCEI
Jun 9, 2008 0.75 inpenny 0.69 N Little Sioux Harrison 20:15 local · NCEI
Jul 25, 2002 1.50 inping pong ball 2 E Little Sioux Harrison 02:32 local · NCEI
Jun 10, 2002 1.00 inquarter 4 NE Little Sioux Harrison 21:57 local · NCEI

Hail history near Little Sioux

Questions about hail in Little Sioux

How often does it hail in Little Sioux, Iowa?

19 hail reports have been logged in and within about 5 km (3 miles) of Little Sioux since 1985. Over the 20 years 2006–2025 that averages 0.5 reports a year. That ranks #183 of 483 Iowa places by number of reports.

When is hail season in Little Sioux?

Most reports come in June, April, September. June alone accounts for 42% of all reports.

What is the largest hail recorded in Little Sioux?

2.00 in (hen egg size) on June 29, 2017 near 2.07 N River Sioux. 11% of reports here were 2 inches or larger.

When did it last hail in Little Sioux?

The most recent report in this data is from April 23, 2026 (1.25 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

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

3 separate days with hail reports since November 3, 2021, adding up to 3 reports. The most recent was April 23, 2026.

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.