Hail in Mahaska County, Iowa

Hail in Mahaska County, Iowa: 91 recorded events between 1960 and 2024. The strongest on record measured 4.75. That places the county #1,557 nationally and #91 statewide for this hazard.

Reporting practice changed over time — early decades are undercounted, not calmer.

The busiest decade for hail in Mahaska County is the 2000s, when 28 of the county's 91 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 Mahaska County archive, hail makes up 21.3% of all recorded severe weather across 8 hazard types. Nationally the county sits at #1,557 for this hazard and #91 within Iowa, putting it in the 49.7 percentile of all U.S. counties.

May is the peak month for hail in Mahaska County with 35 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.

• Thunderstorm Wind 151
• Flood 78

How many hail events are on record in Mahaska County, Iowa?

91 hail events are recorded in Mahaska County between 1960 and 2024, causing 0 direct deaths.

What is the strongest hail recorded in Mahaska County?

The strongest hail on record in Mahaska County measured 4.75.

Where does the hail data for Mahaska 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.