217
Recorded events
0
Direct deaths
0
Direct injuries
$0
Property damage
Hail in Harrison County, Iowa: 217 recorded events between 1964 and 2026. The strongest on record measured 3. That places the county #543 nationally and #18 statewide for this hazard.
Decade by decade
Hail in Harrison County, Iowa: events per decade
Reporting practice changed over time — early decades are undercounted, not calmer.
The busiest decade for hail in Harrison County is the 2000s, when 84 of the county's 217 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 Harrison County archive, hail makes up 43.8% of all recorded severe weather across 7 hazard types. Nationally the county sits at #543 for this hazard and #18 within Iowa, putting it in the 82.5 percentile of all U.S. counties.
Seasonality
Events by month
Jun is the peak month for hail in Harrison County with 60 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.
Most recent
Latest recorded events
| Date | Location | Magnitude | Damage |
|---|---|---|---|
| Apr 23, 2026 | YORKSHIRE | 1 | $0 |
| Apr 23, 2026 | BEEBEETOWN | 1 | $0 |
| Apr 23, 2026 | LOGAN | 1 | $0 |
| Apr 23, 2026 | DUNLAP | 1 | $0 |
| Apr 23, 2026 | EUCLID | 1 | $0 |
| Apr 23, 2026 | LOGAN | 1 | $0 |
| Apr 23, 2026 | CALIFORNIA JCT | 1.25 | $0 |
| Apr 23, 2026 | MISSOURI VLY | 1.5 | $0 |
| Apr 23, 2026 | MODALE | 1 | $0 |
| Apr 15, 2026 | DUNLAP | 1.75 | $0 |
Other hazards here
More from Harrison County
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
Nickel size hail was accompanied by very heavy rain and strong winds south of Modale. There was a public report of 4.2 inches of rain with this storm which left "considerable" amounts of standing water yet that next morning.
The third severe thunderstorm of this day to track across the Mondamin Iowa area. This one produced up to 1 inch hail from the town of Mondamin to 3 miles east of town. The storms also produced numerous reports of funnel clouds. However, video from chasers, including accounts from off-duty NWS employees, suggested that there were probably no tornadoes with these storms.
Quick answers
Frequently asked
How many hail events are on record in Harrison County, Iowa?
217 hail events are recorded in Harrison County between 1964 and 2026, causing 0 direct deaths.
What is the strongest hail recorded in Harrison County?
The strongest hail on record in Harrison County measured 3.
Where does the hail data for Harrison 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 Harrison County, Iowa.” Severe Weather History. severeweatherhistory.com/county/iowa/harrison-county/hail/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.