Hail History

Hail history for Warren County, Iowa

Every NOAA hail report filed in Warren County since 1962, with preliminary National Weather Service reports to November 3, 2026.

Readout · Warren County

Last hail
Oct 8, 2026
1.25 in, half dollar size · preliminary
Hail days, last 5 years
20
since Nov 3, 2021 · 46 reports
Largest ever
3.50 in
teacup · Jun 30, 2014

342 reports on 147 days since 1962 · #4 of 100 Iowa counties

Hail map · Warren County

Indianola Norwalk New Virginia Carlisle Milo Hartford St. Marys Bevington Martensdale Cumming 50 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
300 most recent reports with a location. Dot size and colour follow hail size. Open street map

For homeowners

Roof damage after hail? Get a free inspection

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 Warren County is from October 8, 2026. A local roofer can check and document it at no cost.

Phone line opening soon

What would a claim cost you? Try the hail claim calculator

Preview: this form is not connected yet. Nothing you enter is sent or stored.

Roofer? Get hail alerts for your area with StormScope

What the record says about Warren County

The latest hail report in Warren County is from October 8, 2026, 1.25 in (half dollar size). Since November 3, 2021 there have been 20 separate hail days; the biggest stones in that time were 2.50 in on April 4, 2023.

Over the 20 years 2006–2025, Warren County logged 204 reports on 74 hail days, about 10.2 reports a year. That is 2.8 times the median Iowa county (3.7 a year) and ranks #4 of 100 Iowa counties for all-time reports. Warren County holds 2% of all 16,032 hail reports in Iowa.

5% of reports with a size were 2 inches (hen egg) or larger, against 7% for the median Iowa county. The largest hail on record here is 3.50 in (teacup) on June 30, 2014 near 2.27 NNE Sandyville.

Reports were down 19% in 2016–2025 (91) compared with 2006–2015 (113). The busiest year was 2001, with 37 reports on 9 days. Hail here peaks in June (35% of reports); 71% fall between April and June.

Reports a year 2006–2025 average

  • Warren County 10.2
  • Median Iowa county 3.7

Hail days 2006–2025

  • Warren County 74
  • Median Iowa county 39.5

Share 2 in or larger of sized reports

  • Warren County 5%
  • Median Iowa county 7%

Hail over time

010203040 1962: 1 reports, largest 1.00 in 1968: 2 reports, largest 0.75 in 1969: 1 reports, largest 2.50 in 1970 1973: 2 reports, largest 1.75 in 1974: 3 reports, largest 1.75 in 1976: 1 reports, largest 2.75 in 1978: 3 reports, largest 2.75 in 1979: 3 reports, largest 1.75 in 1980: 5 reports, largest 2.75 in 1980 1981: 3 reports, largest 3.00 in 1984: 1 reports, largest 1.00 in 1985: 1 reports, largest 1.75 in 1986: 6 reports, largest 1.75 in 1987: 1 reports, largest 1.00 in 1988: 3 reports, largest 1.75 in 1990: 1 reports, largest 0.75 in 1990 1991: 2 reports, largest 0.75 in 1992: 5 reports, largest 1.00 in 1993: 2 reports, largest 0.75 in 1994: 1 reports, largest 0.75 in 1995: 3 reports, largest 0.75 in 1997: 5 reports, largest 1.75 in 1998: 6 reports, largest 1.75 in 1999: 10 reports, largest 1.75 in 2000: 4 reports, largest 1.50 in 2000 2001: 37 reports, largest 2.00 in 2002: 3 reports, largest 1.75 in 2003: 2 reports, largest 1.75 in 2004: 9 reports, largest 1.75 in 2005: 8 reports, largest 1.00 in 2006: 24 reports, largest 1.75 in 2007: 5 reports, largest 1.00 in 2008: 19 reports, largest 2.00 in 2009: 1 reports, largest 0.88 in 2010: 15 reports, largest 1.75 in 2010 2011: 7 reports, largest 1.75 in 2012: 5 reports, largest 1.25 in 2013: 4 reports, largest 1.75 in 2014: 27 reports, largest 3.50 in 2015: 6 reports, largest 1.00 in 2016: 1 reports, largest 0.88 in 2017: 15 reports, largest 2.50 in 2018: 2 reports, largest 1.00 in 2019: 1 reports, largest 1.00 in 2020: 12 reports, largest 3.00 in 2020 2021: 18 reports, largest 1.75 in 2022: 6 reports, largest 1.75 in 2023: 17 reports, largest 2.50 in 2024: 14 reports, largest 1.75 in 2025: 5 reports, largest 1.00 in 2026: 4 reports, largest 1.75 in
Reports per year, 1962–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
050100150 Jan February: 3 reports (1%) Feb March: 35 reports (10%) Mar April: 63 reports (18%) Apr May: 61 reports (18%) May June: 120 reports (35%) Jun July: 28 reports (8%) Jul August: 4 reports (1%) Aug September: 18 reports (5%) Sep October: 8 reports (2%) Oct November: 2 reports (1%) Nov Dec
All 342 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 4 4
2025 311 5
2024 43313 14
2023 211211 17
2022 33 6
2021 162 18
2020 1101 12
2019 1 1
2018 2 2
2017 474 15

Hail days since Nov 3, 2021

DateReportsLargestStorm page
Oct 8, 2026 4 1.75 in View
Sep 16, 2025 1 0.75 in —
May 19, 2025 1 0.88 in —
Apr 17, 2025 3 1.00 in —
Oct 24, 2024 2 1.00 in —
Oct 4, 2024 1 1.00 in —
Jul 24, 2024 1 1.00 in —
Jun 25, 2024 3 1.75 in —
May 24, 2024 2 1.00 in —
May 21, 2024 1 0.75 in —
Apr 30, 2024 3 1.00 in —
Apr 26, 2024 1 1.00 in —
Sep 23, 2023 1 0.88 in —
Jul 12, 2023 1 1.00 in —
Jun 24, 2023 2 1.75 in —
Apr 19, 2023 2 1.00 in —
Apr 4, 2023 9 2.50 in —
Mar 31, 2023 2 1.75 in —
Sep 17, 2022 3 1.25 in —
Jun 25, 2022 3 1.75 in —

Largest hail on record

Largest hail reports in Warren County
Date Size Location Damage Time · source
Jun 30, 2014 3.50 inteacup 2.27 NNE Sandyville $50K 12:55 local · NCEI
May 14, 2020 3.00 inteacup New Virginia — 15:30 local · NCEI
Apr 10, 1981 3.00 inteacup — — 17:00 local · NCEI
May 14, 2020 2.75 inbaseball New Virginia — 15:22 local · NCEI
Jun 30, 2014 2.75 inbaseball 1.11 SE Sandyville $10K 12:56 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 Warren County
Date Size Location Time · source
Oct 8, 2026 1.25 inhalf dollar W Norwalk 04:01 UTC · NWS prelim.
Oct 8, 2026 1.00 inquarter 4 N Indianola 04:01 UTC · NWS prelim.
Oct 8, 2026 1.00 inquarter 2 E Cumming 03:47 UTC · NWS prelim.
Oct 8, 2026 1.75 ingolf ball 1 S Cumming 03:45 UTC · NWS prelim.
Sep 16, 2025 0.75 inpenny 4.18 S St Marys 14:38 local · NCEI
May 19, 2025 0.88 innickel 1.04 W New Virginia 15:20 local · NCEI
Apr 17, 2025 1.00 inquarter 1.24 ESE Hartford 22:20 local · NCEI
Apr 17, 2025 1.00 inquarter Clarkson 22:14 local · NCEI
Apr 17, 2025 0.75 inpenny 1.38 N Norwalk 21:30 local · NCEI
Oct 24, 2024 1.00 inquarter 0.69 S New Virginia 19:55 local · NCEI
Oct 24, 2024 0.75 inpenny 1.7 ESE Hartford 16:59 local · NCEI
Oct 4, 2024 1.00 inquarter 2.32 NNE Indianola Arpt 01:01 local · NCEI

Cities and towns in Warren County

PlaceReportsLargest
Indianola652.75 in
Norwalk583.00 in
New Virginia383.00 in
Carlisle171.75 in
Milo161.75 in
Hartford141.75 in
St. Marys131.75 in
Bevington121.75 in
Martensdale111.75 in
Cumming101.75 in
Lacona101.75 in

Smaller places with fewer than 10 reports

These places have too few reports for a page of their own, so their record lives here.

PlaceReportsHail daysLatest
Ackworth86Jun 22, 2021
Sandyville62May 24, 2024
Spring Hill54Jun 30, 2014
Beaconsfield22Apr 8, 2013

Questions about hail in Warren County

How often does it hail in Warren County, Iowa?

342 hail reports have been logged in Warren County since 1962. Over the 20 years 2006–2025 that averages 10.2 reports a year. That ranks #4 of 100 Iowa counties by number of reports.

When is hail season in Warren County?

Most reports come in June, April, May. June alone accounts for 35% of all reports.

What is the largest hail recorded in Warren County?

3.50 in (teacup size) on June 30, 2014 near 2.27 NNE Sandyville. 5% of reports here were 2 inches or larger.

When did it last hail in Warren County?

The most recent report in this data is from October 8, 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 Warren County had in the last five years?

20 separate days with hail reports since November 3, 2021, adding up to 46 reports. The most recent was October 8, 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.