Hail history for Norwalk, Iowa
NOAA hail reports in and within about 5 km (3 miles) of Norwalk since 1956, with preliminary reports to November 3, 2026.
Readout · Norwalk
- Last hail
- Oct 8, 2026
- 1.25 in, half dollar size · preliminary
- Hail days, last 5 years
- 5
- since Nov 3, 2021 · 7 reports
- Largest ever
- 3.00 in
- teacup · Apr 10, 1981
58 reports on 39 days since 1956 · #24 of 483 Iowa places
Hail map · Norwalk
- Under 1 in
- 1–1.75 in
- 1.75–2.5 in
- 2.5–4 in
- 4 in +
- No size
For homeowners
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What the record says about Norwalk
The latest hail report in and around Norwalk is from October 8, 2026, 1.25 in (half dollar size). Since November 3, 2021 there have been 5 separate hail days; the biggest stones in that time were 1.25 in on October 8, 2026.
Over the 20 years 2006–2025, Norwalk logged 29 reports on 16 hail days, about 1.4 reports a year. That is 3.2 times the median Iowa town on this site (0.5 a year) and ranks #24 of 483 Iowa cities and towns on this site for all-time reports. Norwalk accounts for 17% of the 342 reports filed in Warren County.
5% 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 3.00 in (teacup) on April 10, 1981.
Reports were down 47% in 2016–2025 (10) compared with 2006–2015 (19). The busiest year was 2006, with 7 reports on 2 days. Hail here peaks in May (24% of reports); 67% fall between April and June.
Reports a year 2006–2025 average
- Norwalk 1.4
- Warren County 10.2
- Median Iowa town on this site 0.5
Hail days 2006–2025
- Norwalk 16
- Warren County 74
- Median Iowa town on this site 7
Share 2 in or larger of sized reports
- Norwalk 5%
- Warren County 5%
- Median Iowa town on this site 6%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 2 | 2 | |||||||||||
| 2025 | 1 | 1 | 2 | ||||||||||
| 2024 | 0 | ||||||||||||
| 2023 | 1 | 1 | |||||||||||
| 2022 | 2 | 2 | |||||||||||
| 2021 | 3 | 3 | |||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 1 | 1 | 2 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Oct 8, 2026 | 2 | 1.25 in | View |
| May 19, 2025 | 1 | 1.00 in | — |
| Apr 17, 2025 | 1 | 0.75 in | — |
| Jul 12, 2023 | 1 | 1.00 in | — |
| Sep 17, 2022 | 2 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | County | Damage | Time · source |
|---|---|---|---|---|---|
| Apr 10, 1981 | 3.00 inteacup | — | Warren | — | 17:00 local · NCEI |
| Apr 1, 1956 | 3.00 inteacup | — | Polk | — | 17:30 local · NCEI |
| Jul 16, 1965 | 2.13 inhen egg | — | Polk | — | 23:24 local · NCEI |
| May 13, 2001 | 1.75 ingolf ball | 1 W Norwalk | Warren | $10K | 12:10 local · NCEI |
| Mar 18, 1986 | 1.75 ingolf ball | — | Warren | — | 16:43 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
- Under 1 in 21 36%
- 1–2 in 34 59%
- 2 in + 3 5%
Most recent reports
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Oct 8, 2026 | 1.25 inhalf dollar | W Norwalk | Warren | 04:01 UTC · NWS prelim. |
| Oct 8, 2026 | 1.00 inquarter | 2 E Cumming | Warren | 03:47 UTC · NWS prelim. |
| May 19, 2025 | 1.00 inquarter | 1.48 SSW (Dsm)des Moines Intl | Polk | 15:30 local · NCEI |
| Apr 17, 2025 | 0.75 inpenny | 1.38 N Norwalk | Warren | 21:30 local · NCEI |
| Jul 12, 2023 | 1.00 inquarter | 1.73 NW Norwalk | Warren | 05:58 local · NCEI |
| Sep 17, 2022 | 1.00 inquarter | 1.38 N Norwalk | Warren | 18:12 local · NCEI |
| Sep 17, 2022 | 0.88 innickel | 0.86 SW Norwalk | Warren | 18:09 local · NCEI |
| Jun 22, 2021 | 0.88 innickel | 1.38 N Norwalk | Warren | 17:00 local · NCEI |
| Jun 22, 2021 | 1.00 inquarter | 0.69 N Norwalk | Warren | 16:58 local · NCEI |
| Jun 18, 2021 | 1.00 inquarter | 2.59 SE Cumming | Warren | 22:46 local · NCEI |
| Jun 15, 2017 | 0.88 innickel | 1.04 E Norwalk | Warren | 21:02 local · NCEI |
| Mar 6, 2017 | 0.88 innickel | 1.38 N Norwalk | Warren | 19:07 local · NCEI |
Hail history near Norwalk
- Cumming 6 km · 10
- West Des Moines 10 km · 70
- Des Moines 12 km · 227
- Martensdale 13 km · 11
- Windsor Heights 14 km · 17
- Bevington 16 km · 12
- Indianola 17 km · 65
- Urbandale 18 km · 57
Questions about hail in Norwalk
How often does it hail in Norwalk, Iowa?
58 hail reports have been logged in and within about 5 km (3 miles) of Norwalk since 1956. Over the 20 years 2006–2025 that averages 1.4 reports a year. That ranks #24 of 483 Iowa places by number of reports.
When is hail season in Norwalk?
Most reports come in May, June, April. May alone accounts for 24% of all reports.
What is the largest hail recorded in Norwalk?
3.00 in (teacup size) on April 10, 1981. 5% of reports here were 2 inches or larger.
When did it last hail in Norwalk?
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 Norwalk had in the last five years?
5 separate days with hail reports since November 3, 2021, adding up to 7 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.