67
Recorded events
0
Direct deaths
0
Direct injuries
$6.6M
Property damage
Hail in Louisa County, Iowa: 67 recorded events between 1966 and 2026. The strongest on record measured 2.75. That places the county #1,910 nationally and #98 statewide for this hazard.
Decade by decade
Hail in Louisa County, Iowa: events per decade
Reporting practice changed over time — early decades are undercounted, not calmer.
The busiest decade for hail in Louisa County is the 2000s, when 27 of the county's 67 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 Louisa County archive, hail makes up 27.1% of all recorded severe weather across 8 hazard types. Nationally the county sits at #1,910 for this hazard and #98 within Iowa, putting it in the 38.4 percentile of all U.S. counties.
Seasonality
Events by month
Apr is the peak month for hail in Louisa County with 18 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 |
|---|---|---|---|
| Mar 31, 2026 | GRANDVIEW | 1 | $0 |
| Mar 31, 2026 | COLUMBUS CITY | 1.5 | $0 |
| Mar 31, 2026 | LETTS | 1.75 | $0 |
| Oct 25, 2024 | MORNING SUN | 0.88 | $0 |
| Oct 4, 2024 | COLUMBUS CITY | 1 | $0 |
| Mar 31, 2023 | COLUMBUS JCT | 1 | $0 |
| Apr 8, 2020 | GRANDVIEW | 1.75 | $0 |
| Apr 8, 2020 | GRANDVIEW | 1.5 | $0 |
| Apr 8, 2020 | GRANDVIEW | 1 | $0 |
| May 19, 2017 | WAPELLO | 1.75 | $0 |
Other hazards here
More from Louisa County
- Thunderstorm Wind 84
- Flood 42
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
The supercell entered Louisa county from northwest Des Moines and Henry counties producing hail up to 1.75 inches (golfball). Morning Sun saw 1.75 inch hail around 1833 CST. After passing over Morning Sun, the supercell appeared to fall apart with no additional hail reports being received.
Quick answers
Frequently asked
How many hail events are on record in Louisa County, Iowa?
67 hail events are recorded in Louisa County between 1966 and 2026, causing 0 direct deaths.
What is the strongest hail recorded in Louisa County?
The strongest hail on record in Louisa County measured 2.75.
Where does the hail data for Louisa 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 Louisa County, Iowa.” Severe Weather History. severeweatherhistory.com/county/iowa/louisa-county/hail/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.