Hail History

Hail history for Sergeant Bluff, Iowa

NOAA hail reports in and within about 5 km (3 miles) of Sergeant Bluff since 1955, with preliminary reports to November 3, 2026.

Readout · Sergeant Bluff

Last hail
Apr 17, 2025
0.88 in, nickel size
Hail days, last 5 years
3
since Nov 3, 2021 · 3 reports
Largest ever
2.75 in
baseball · Jul 9, 1964

30 reports on 26 days since 1955 · #76 of 483 Iowa places

Hail map · Sergeant Bluff

Sergeant Bluff Sioux City Salix Bronson Sloan Climbing Hill Moville Hornick 10 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
30 most recent reports with a location; Woodbury County is shaded. Open street map

For homeowners

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What the record says about Sergeant Bluff

The latest hail report in and around Sergeant Bluff is from April 17, 2025, 0.88 in (nickel size). Since November 3, 2021 there have been 3 separate hail days; the biggest stones in that time were 1.25 in on July 7, 2024.

Over the 20 years 2006–2025, Sergeant Bluff logged 9 reports on 8 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 #76 of 483 Iowa cities and towns on this site for all-time reports. Sergeant Bluff accounts for 8% of the 387 reports filed in Woodbury County.

7% 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 2.75 in (baseball) on July 9, 1964.

Reports were up 25% in 2016–2025 (5) compared with 2006–2015 (4). The busiest year was 2014, with 3 reports on 2 days. Hail here peaks in May (33% of reports); 70% fall between April and June.

Reports a year 2006–2025 average

  • Sergeant Bluff 0.5
  • Woodbury County 9.3
  • Median Iowa town on this site 0.5

Hail days 2006–2025

  • Sergeant Bluff 8
  • Woodbury County 74
  • Median Iowa town on this site 7

Share 2 in or larger of sized reports

  • Sergeant Bluff 7%
  • Woodbury County 4%
  • Median Iowa town on this site 6%

Hail over time

0123 1955: 2 reports, largest 1.00 in 1956: 1 reports, largest 1.75 in 1960 1962: 2 reports, largest 1.50 in 1964: 2 reports, largest 2.75 in 1965: 1 reports, largest 1.50 in 1970: 1 reports, largest 0.75 in 1970 1980: 1 reports, largest 1.75 in 1980 1990 1992: 1 reports, largest 0.75 in 1996: 2 reports, largest 1.25 in 1999: 1 reports, largest 0.75 in 2000 2001: 2 reports, largest 0.75 in 2002: 3 reports, largest 1.75 in 2003: 1 reports, largest 1.00 in 2004: 1 reports, largest 1.75 in 2007: 1 reports, largest 1.00 in 2010 2014: 3 reports, largest 1.25 in 2016: 1 reports, largest 0.75 in 2018: 1 reports, largest 0.75 in 2020 2024: 2 reports, largest 1.25 in 2025: 1 reports, largest 0.88 in
Reports per year, 1955–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
036912 Jan Feb Mar April: 4 reports (13%) Apr May: 10 reports (33%) May June: 7 reports (23%) Jun July: 7 reports (23%) Jul August: 2 reports (7%) Aug Sep Oct Nov Dec
All 30 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 0
2025 1 1
2024 11 2
2023 0
2022 0
2021 0
2020 0
2019 0
2018 1 1
2017 0

Hail days since Nov 3, 2021

DateReportsLargestStorm page
Apr 17, 2025 1 0.88 in —
Jul 7, 2024 1 1.25 in —
May 20, 2024 1 1.25 in —

Largest hail on record

Largest hail reports in Sergeant Bluff
Date Size Location County Time · source
Jul 9, 1964 2.75 inbaseball — Woodbury 21:48 local · NCEI
May 25, 1964 2.50 intennis ball — — 16:40 local · NCEI
May 28, 2004 1.75 ingolf ball Sergeant Bluff Woodbury 19:58 local · NCEI
May 28, 2002 1.75 ingolf ball Sergeant Bluff Woodbury 21:08 local · NCEI
May 26, 1980 1.75 ingolf ball — Woodbury 21:25 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 Sergeant Bluff
Date Size Location County Time · source
Apr 17, 2025 0.88 innickel 0.51 W Sergeant Bluff Woodbury 19:12 local · NCEI
Jul 7, 2024 1.25 inhalf dollar 0.51 E Sergeant Bluff Woodbury 16:50 local · NCEI
May 20, 2024 1.25 inhalf dollar 0.51 W Sergeant Bluff Woodbury 21:42 local · NCEI
Jun 11, 2018 0.75 inpenny 1.47 SSW Sergeant Bluff Woodbury 15:17 local · NCEI
May 9, 2016 0.75 inpenny Sergeant Bluff Woodbury 15:20 local · NCEI
Aug 20, 2014 1.25 inhalf dollar 0.51 W Sergeant Bluff Woodbury 02:23 local · NCEI
Jun 20, 2014 0.88 innickel 2.55 E Sergeant Bluff Woodbury 13:45 local · NCEI
Jun 20, 2014 1.00 inquarter 0.51 W Sergeant Bluff Woodbury 13:41 local · NCEI
Aug 22, 2007 1.00 inquarter Sergeant Bluff Woodbury 07:24 local · NCEI
May 28, 2004 1.75 ingolf ball Sergeant Bluff Woodbury 19:58 local · NCEI
Jun 9, 2003 1.00 inquarter 1 S Sergeant Bluff Woodbury 19:57 local · NCEI
May 28, 2002 0.75 inpenny Sergeant Bluff Woodbury 23:33 local · NCEI

Hail history near Sergeant Bluff

Questions about hail in Sergeant Bluff

How often does it hail in Sergeant Bluff, Iowa?

30 hail reports have been logged in and within about 5 km (3 miles) of Sergeant Bluff since 1955. Over the 20 years 2006–2025 that averages 0.5 reports a year. That ranks #76 of 483 Iowa places by number of reports.

When is hail season in Sergeant Bluff?

Most reports come in May, June, July. May alone accounts for 33% of all reports.

What is the largest hail recorded in Sergeant Bluff?

2.75 in (baseball size) on July 9, 1964. 7% of reports here were 2 inches or larger.

When did it last hail in Sergeant Bluff?

The most recent report in this data is from April 17, 2025 (0.88 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

How many hail storms has Sergeant Bluff 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 17, 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.