Hail History

Hail history for Chatsworth, Iowa

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

Readout · Chatsworth

Last hail
May 18, 2026
1.00 in, quarter size
Hail days, last 5 years
1
since Nov 5, 2021 · 1 report
Largest ever
2.75 in
baseball · Sep 5, 1983

15 reports on 12 days since 1983 · #260 of 483 Iowa places

Hail map · Chatsworth

Chatsworth Hawarden Sioux Center Rock Valley 10 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
15 most recent reports with a location; Sioux County is shaded. Open street map

For homeowners

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What the record says about Chatsworth

The latest hail report in and around Chatsworth is from May 18, 2026, 1.00 in (quarter size). Since November 5, 2021 there has been one hail day; the biggest stones in that time were 1.00 in on May 18, 2026.

Over the 20 years 2006–2025, Chatsworth logged 9 reports on 7 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 #260 of 483 Iowa cities and towns on this site for all-time reports. Chatsworth accounts for 6% of the 269 reports filed in Sioux County.

13% 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 September 5, 1983.

Reports were down 100% in 2016–2025 (0) compared with 2006–2015 (9). The busiest year was 2008, with 3 reports on 1 day. Hail here peaks in June (40% of reports); 67% fall between April and June.

Reports a year 2006–2025 average

  • Chatsworth 0.5
  • Sioux County 6.8
  • Median Iowa town on this site 0.5

Hail days 2006–2025

  • Chatsworth 7
  • Sioux County 66
  • Median Iowa town on this site 7

Share 2 in or larger of sized reports

  • Chatsworth 13%
  • Sioux County 6%
  • Median Iowa town on this site 6%

Hail over time

0123 1983: 1 reports, largest 2.75 in 1990 2000 2001: 1 reports, largest 0.75 in 2002: 2 reports, largest 2.50 in 2005: 1 reports, largest 1.00 in 2006: 1 reports, largest 0.88 in 2008: 3 reports, largest 1.75 in 2009: 1 reports, largest 1.00 in 2010 2012: 1 reports, largest 1.00 in 2014: 2 reports, largest 0.88 in 2015: 1 reports, largest 1.00 in 2020 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.
0246 Jan Feb March: 1 reports (7%) Mar April: 1 reports (7%) Apr May: 3 reports (20%) May June: 6 reports (40%) Jun Jul August: 3 reports (20%) Aug September: 1 reports (7%) Sep Oct Nov Dec
All 15 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 1 1
2025 0
2024 0
2023 0
2022 0
2021 0
2020 0
2019 0
2018 0
2017 0

Hail days since Nov 5, 2021

DateReportsLargestStorm page
May 18, 2026 1 1.00 in —

Largest hail on record

Largest hail reports in Chatsworth
Date Size Location County Damage Time · source
Sep 5, 1983 2.75 inbaseball — Sioux — 16:30 local · NCEI
Aug 16, 2002 2.50 intennis ball Chatsworth Sioux — 20:40 local · NCEI
Jun 26, 2008 1.75 ingolf ball 1.01 E Chatsworth Sioux $5K 05:00 local · NCEI
Aug 16, 2002 1.75 ingolf ball Chatsworth Sioux — 20:47 local · NCEI
May 18, 2026 1.00 inquarter 1.23 SW Chatsworth Sioux — 16:00 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 Chatsworth
Date Size Location County Damage Time · source
May 18, 2026 1.00 inquarter 1.23 SW Chatsworth Sioux — 16:00 local · NCEI
Aug 9, 2015 1.00 inquarter 5.89 NNE Akron Plymouth — 19:08 local · NCEI
Jun 30, 2014 0.75 inpenny 1.23 SW Chatsworth Sioux — 00:38 local · NCEI
Jun 5, 2014 0.88 innickel 0.51 W Chatsworth Sioux — 12:49 local · NCEI
May 27, 2012 1.00 inquarter 0.51 W Chatsworth Sioux — 16:41 local · NCEI
Jun 25, 2009 1.00 inquarter 1.01 E Chatsworth Sioux — 00:00 local · NCEI
Jun 26, 2008 1.75 ingolf ball 1.01 E Chatsworth Sioux $5K 05:00 local · NCEI
Jun 26, 2008 0.88 innickel 1.71 NW Chatsworth Sioux — 04:55 local · NCEI
Jun 26, 2008 1.00 inquarter 0.51 W Chatsworth Sioux — 04:55 local · NCEI
Mar 30, 2006 0.88 innickel 5 NE Akron Plymouth — 13:29 local · NCEI
May 8, 2005 1.00 inquarter Chatsworth Sioux — 16:56 local · NCEI
Aug 16, 2002 1.75 ingolf ball Chatsworth Sioux — 20:47 local · NCEI

Hail history near Chatsworth

Questions about hail in Chatsworth

How often does it hail in Chatsworth, Iowa?

15 hail reports have been logged in and within about 5 km (3 miles) of Chatsworth since 1983. Over the 20 years 2006–2025 that averages 0.5 reports a year. That ranks #260 of 483 Iowa places by number of reports.

When is hail season in Chatsworth?

Most reports come in June, May, August. June alone accounts for 40% of all reports.

What is the largest hail recorded in Chatsworth?

2.75 in (baseball size) on September 5, 1983. 13% of reports here were 2 inches or larger.

When did it last hail in Chatsworth?

The most recent report in this data is from May 18, 2026 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 5, 2026.

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

1 separate days with hail reports since November 5, 2021, adding up to 1 reports. The most recent was May 18, 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.