Hail in Osceola County, Iowa

Hail in Osceola County, Iowa: 120 recorded events between 1958 and 2026. The strongest on record measured 4. That places the county #1,204 nationally and #69 statewide for this hazard.

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

The busiest decade for hail in Osceola County is the 2000s, when 55 of the county's 120 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 Osceola County archive, hail makes up 45.8% of all recorded severe weather across 8 hazard types. Nationally the county sits at #1,204 for this hazard and #69 within Iowa, putting it in the 61.2 percentile of all U.S. counties.

May is the peak month for hail in Osceola County with 29 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 100

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

120 hail events are recorded in Osceola County between 1958 and 2026, causing 0 direct deaths.

What is the strongest hail recorded in Osceola County?

The strongest hail on record in Osceola County measured 4.

Where does the hail data for Osceola 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.