Hail History

Hail history for Missouri Valley, Iowa

NOAA hail reports in and within about 5 km (3 miles) of Missouri Valley since 1983, with preliminary reports to November 3, 2026.

Readout · Missouri Valley

Last hail
Apr 23, 2026
1.00 in, quarter size
Hail days, last 5 years
2
since Nov 3, 2021 · 2 reports
Largest ever
2.00 in
hen egg · May 16, 1999

29 reports on 27 days since 1983 · #82 of 483 Iowa places

Hail map · Missouri Valley

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

For homeowners

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What the record says about Missouri Valley

The latest hail report in and around Missouri Valley is from April 23, 2026, 1.00 in (quarter size). Since November 3, 2021 there have been 2 separate hail days; the biggest stones in that time were 1.50 in on June 25, 2024.

Over the 20 years 2006–2025, Missouri Valley logged 13 reports on 13 hail days, about 0.7 reports a year. That is 44% more than the median Iowa town on this site (0.5 a year) and ranks #82 of 483 Iowa cities and towns on this site for all-time reports. Missouri Valley accounts for 13% of the 218 reports filed in Harrison County.

3% 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 16, 1999 near 1 N Missouri Vly.

Reports were down 56% in 2016–2025 (4) compared with 2006–2015 (9). The busiest year was 2005, with 4 reports on 4 days. Hail here peaks in June (31% of reports); 69% fall between April and June.

Reports a year 2006–2025 average

  • Missouri Valley 0.7
  • Harrison County 4.3
  • Median Iowa town on this site 0.5

Hail days 2006–2025

  • Missouri Valley 13
  • Harrison County 53
  • Median Iowa town on this site 7

Share 2 in or larger of sized reports

  • Missouri Valley 3%
  • Harrison County 6%
  • Median Iowa town on this site 6%

Hail over time

01234 1983: 1 reports, largest 1.75 in 1990 1991: 1 reports, largest 1.50 in 1998: 2 reports, largest 0.88 in 1999: 2 reports, largest 2.00 in 2000: 1 reports, largest 0.75 in 2000 2001: 1 reports, largest 0.88 in 2002: 1 reports, largest 0.75 in 2004: 2 reports, largest 1.00 in 2005: 4 reports, largest 1.75 in 2006: 2 reports, largest 0.75 in 2010: 1 reports, largest 1.00 in 2010 2011: 2 reports, largest 1.00 in 2012: 1 reports, largest 1.00 in 2013: 1 reports, largest 1.25 in 2014: 2 reports, largest 1.75 in 2017: 3 reports, largest 1.00 in 2020 2024: 1 reports, largest 1.50 in 2026: 1 reports, largest 1.00 in
Reports per year, 1983–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
0369 Jan Feb March: 3 reports (10%) Mar April: 3 reports (10%) Apr May: 8 reports (28%) May June: 9 reports (31%) Jun July: 2 reports (7%) Jul August: 2 reports (7%) Aug September: 2 reports (7%) Sep Oct Nov Dec
All 29 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 1 1
2025 0
2024 1 1
2023 0
2022 0
2021 0
2020 0
2019 0
2018 0
2017 111 3

Hail days since Nov 3, 2021

DateReportsLargestStorm page
Apr 23, 2026 1 1.00 in —
Jun 25, 2024 1 1.50 in —

Largest hail on record

Largest hail reports in Missouri Valley
Date Size Location County Time · source
May 16, 1999 2.00 inhen egg 1 N Missouri Vly Harrison 15:21 local · NCEI
Jun 16, 2014 1.75 ingolf ball 0.69 S Missouri Vly Harrison 11:17 local · NCEI
Jun 3, 2014 1.75 ingolf ball 0.69 S Missouri Vly Harrison 15:32 local · NCEI
Jul 20, 2005 1.75 ingolf ball 1 S Missouri Vly Harrison 09:37 local · NCEI
May 6, 1983 1.75 ingolf ball — Harrison 16:45 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 Missouri Valley
Date Size Location County Time · source
Apr 23, 2026 1.00 inquarter Euclid Harrison 14:27 local · NCEI
Jun 25, 2024 1.50 inping pong ball Missouri Vly Harrison 19:00 local · NCEI
Jun 29, 2017 1.00 inquarter 0.69 S Missouri Vly Harrison 19:05 local · NCEI
Apr 19, 2017 0.75 inpenny 3.69 W Missouri Vly Arpt Harrison 06:14 local · NCEI
Mar 6, 2017 1.00 inquarter 2.18 WNW Missouri Vly Arpt Harrison 15:35 local · NCEI
Jun 16, 2014 1.75 ingolf ball 0.69 S Missouri Vly Harrison 11:17 local · NCEI
Jun 3, 2014 1.75 ingolf ball 0.69 S Missouri Vly Harrison 15:32 local · NCEI
Jul 22, 2013 1.25 inhalf dollar 1.24 WNW Missouri Vly Arpt Harrison 18:10 local · NCEI
May 19, 2012 1.00 inquarter 0.69 S Missouri Vly Harrison 19:21 local · NCEI
Aug 18, 2011 0.75 inpenny 1.62 SSW Missouri Vly Harrison 18:05 local · NCEI
Mar 22, 2011 1.00 inquarter 1.03 E Missouri Vly Harrison 16:03 local · NCEI
Jun 1, 2010 1.00 inquarter 0.69 S Missouri Vly Harrison 16:45 local · NCEI

Hail history near Missouri Valley

Questions about hail in Missouri Valley

How often does it hail in Missouri Valley, Iowa?

29 hail reports have been logged in and within about 5 km (3 miles) of Missouri Valley since 1983. Over the 20 years 2006–2025 that averages 0.7 reports a year. That ranks #82 of 483 Iowa places by number of reports.

When is hail season in Missouri Valley?

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

What is the largest hail recorded in Missouri Valley?

2.00 in (hen egg size) on May 16, 1999 near 1 N Missouri Vly. 3% of reports here were 2 inches or larger.

When did it last hail in Missouri Valley?

The most recent report in this data is from April 23, 2026 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

How many hail storms has Missouri Valley 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 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.