Hail history for Hamilton County, Iowa
Every NOAA hail report filed in Hamilton County since 1974, with preliminary National Weather Service reports to November 3, 2026.
Readout · Hamilton County
- Last hail
- Jul 6, 2024
- 1.25 in, half dollar size
- Hail days, last 5 years
- 1
- since Nov 3, 2021 · 1 report
- Largest ever
- 2.75 in
- baseball · Jun 30, 2014
149 reports on 69 days since 1974 · #42 of 100 Iowa counties
Hail map · Hamilton County
- 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 Hamilton County
The latest hail report in Hamilton County is from July 6, 2024, 1.25 in (half dollar size). Since November 3, 2021 there has been one hail day; the biggest stones in that time were 1.25 in on July 6, 2024.
Over the 20 years 2006–2025, Hamilton County logged 67 reports on 29 hail days, about 3.4 reports a year. That is about the same as the median Iowa county (3.7 a year) and ranks #42 of 100 Iowa counties for all-time reports. Hamilton County holds 1% 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 2.75 in (baseball) on June 30, 2014 near 0.67 NNE Stanhope.
Reports were down 66% in 2016–2025 (17) compared with 2006–2015 (50). The busiest year was 2004, with 16 reports on 4 days. Hail here peaks in June (25% of reports); 60% fall between April and June.
Reports a year 2006–2025 average
- Hamilton County 3.4
- Median Iowa county 3.7
Hail days 2006–2025
- Hamilton County 29
- Median Iowa county 39.5
Share 2 in or larger of sized reports
- Hamilton County 5%
- Median Iowa county 7%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0 | ||||||||||||
| 2025 | 0 | ||||||||||||
| 2024 | 1 | 1 | |||||||||||
| 2023 | 0 | ||||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 1 | 1 | |||||||||||
| 2018 | 1 | 6 | 1 | 2 | 10 | ||||||||
| 2017 | 3 | 3 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Jul 6, 2024 | 1 | 1.25 in | — |
Largest hail on record
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| Jun 30, 2014 | 2.75 inbaseball | 0.67 NNE Stanhope | $150K | 11:23 local · NCEI |
| Jun 22, 1974 | 2.75 inbaseball | — | — | 01:00 local · NCEI |
| Jun 30, 2014 | 2.50 intennis ball | 0.34 SE Stratford | $10K | 11:10 local · NCEI |
| Jun 11, 2004 | 2.00 inhen egg | Stratford | $50K | 19:32 local · NCEI |
| Jul 8, 1995 | 2.00 inhen egg | Jewell | $5K | 21:53 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 48 32%
- 1–2 in 93 63%
- 2 in + 7 5%
- No size 1
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| Jul 6, 2024 | 1.25 inhalf dollar | 5.53 N Webster City | 18:11 local · NCEI |
| Sep 14, 2019 | 1.00 inquarter | 0.69 S Kamrar | 14:33 local · NCEI |
| Aug 1, 2018 | 1.00 inquarter | 2.13 SSE Homer | 17:45 local · NCEI |
| Aug 1, 2018 | 0.75 inpenny | 1.23 NE Williams | 17:41 local · NCEI |
| Jul 25, 2018 | 0.75 inpenny | 0.51 W Kamrar | 19:38 local · NCEI |
| Jun 6, 2018 | 1.75 ingolf ball | 0.86 NE Jewell | 15:45 local · NCEI |
| Jun 6, 2018 | 1.75 ingolf ball | 3.07 E Stanhope | 15:38 local · NCEI |
| Jun 6, 2018 | 1.00 inquarter | 3.07 E Stanhope | 15:28 local · NCEI |
| Jun 6, 2018 | 1.50 inping pong ball | 2.47 NE Stanhope | 15:27 local · NCEI |
| Jun 6, 2018 | 1.00 inquarter | 0.69 N Stanhope | 15:26 local · NCEI |
| Jun 6, 2018 | 1.75 ingolf ball | 3.29 SE Stratford | 15:05 local · NCEI |
| Apr 13, 2018 | 0.88 innickel | Stratford | 18:25 local · NCEI |
Cities and towns in Hamilton County
| Place | Reports | Largest |
|---|---|---|
| Webster City | 28 | 1.75 in |
| Stratford | 24 | 2.50 in |
| Jewell Junction | 16 | 2.00 in |
| Stanhope | 15 | 2.75 in |
| Williams | 12 | 1.75 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.
| Place | Reports | Hail days | Latest |
|---|---|---|---|
| Ellsworth | 8 | 6 | May 15, 2017 |
| Kamrar | 8 | 5 | Sep 14, 2019 |
| Blairsburg | 6 | 4 | Jul 22, 2013 |
| Randall | 4 | 4 | May 25, 2008 |
Questions about hail in Hamilton County
How often does it hail in Hamilton County, Iowa?
149 hail reports have been logged in Hamilton County since 1974. Over the 20 years 2006–2025 that averages 3.4 reports a year. That ranks #42 of 100 Iowa counties by number of reports.
When is hail season in Hamilton County?
Most reports come in June, May, July. June alone accounts for 25% of all reports.
What is the largest hail recorded in Hamilton County?
2.75 in (baseball size) on June 30, 2014 near 0.67 NNE Stanhope. 5% of reports here were 2 inches or larger.
When did it last hail in Hamilton County?
The most recent report in this data is from July 6, 2024 (1.25 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Hamilton County had in the last five years?
1 separate days with hail reports since November 3, 2021, adding up to 1 reports. The most recent was July 6, 2024.
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.