132
Recorded events
0
Direct deaths
1
Direct injuries
$3.5M
Property damage
Hail in Calhoun County, Iowa: 132 recorded events between 1960 and 2025. The strongest on record measured 4. That places the county #1,076 nationally and #55 statewide for this hazard.
Decade by decade
Hail in Calhoun County, Iowa: events per decade
Reporting practice changed over time — early decades are undercounted, not calmer.
The busiest decade for hail in Calhoun County is the 2010s, when 50 of the county's 132 recorded events were logged. Comparing decades is useful for spotting active periods, but the earliest years are thin because systematic reporting for this hazard began later.
Within the Calhoun County archive, hail makes up 35.7% of all recorded severe weather across 8 hazard types. Nationally the county sits at #1,076 for this hazard and #55 within Iowa, putting it in the 65.3 percentile of all U.S. counties.
Seasonality
Events by month
May is the peak month for hail in Calhoun County with 42 recorded events, while Jan is the quietest. Seasonality here is a property of the archive as much as the climate: reports cluster where population and spotter networks are densest.
Significant events
Deadliest on record
| Date | Location | Scale | Deaths | Injuries | Damage |
|---|---|---|---|---|---|
| May 30, 1998 | LOHRVILLE | 2.75 | 0 | 1 | $1.0M |
Most recent
Latest recorded events
| Date | Location | Magnitude | Damage |
|---|---|---|---|
| Jun 16, 2025 | POMEROY | 0.75 | $0 |
| Mar 14, 2025 | KNIERIM | 1 | $0 |
| May 24, 2024 | ROCKWELL CITY | 1 | $0 |
| Jul 3, 2023 | JOLLEY | 1 | $0 |
| Jun 5, 2022 | LAVINIA | 0.75 | $0 |
| Mar 28, 2020 | MANSON | 1.25 | $0 |
| Mar 28, 2020 | MANSON | 1.25 | $0 |
| Mar 28, 2020 | ROCKWELL CITY | 1.5 | $0 |
| Mar 28, 2020 | ROCKWELL CITY | 1 | $0 |
| Sep 29, 2019 | POMEROY | 1 | $0 |
Other hazards here
More from Calhoun County
Quick answers
Frequently asked
How many hail events are on record in Calhoun County, Iowa?
132 hail events are recorded in Calhoun County between 1960 and 2025, causing 0 direct deaths.
What is the strongest hail recorded in Calhoun County?
The strongest hail on record in Calhoun County measured 4.
Where does the hail data for Calhoun County come from?
All events come from the NOAA/NCEI Storm Events Database, the federal public-domain archive of severe weather reports. Dates are UTC, damage is as reported and not inflation-adjusted, and the most recent entries may still be revised.
Cite this page
“Hail in Calhoun County, Iowa.” Severe Weather History. severeweatherhistory.com/county/iowa/calhoun-county/hail/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.