Hail in Oglala Lakota County, South Dakota

Hail in Oglala Lakota County, South Dakota: 326 recorded events between 1980 and 2025. The strongest on record measured 4.25. That places the county #261 nationally and #10 statewide for this hazard.

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

The busiest decade for hail in Oglala Lakota County is the 2010s, when 124 of the county's 326 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 Oglala Lakota County archive, hail makes up 48.2% of all recorded severe weather across 9 hazard types. Nationally the county sits at #261 for this hazard and #10 within South Dakota, putting it in the 91.7 percentile of all U.S. counties.

Jun is the peak month for hail in Oglala Lakota County with 108 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 296

How many hail events are on record in Oglala Lakota County, South Dakota?

326 hail events are recorded in Oglala Lakota County between 1980 and 2025, causing 0 direct deaths.

What is the strongest hail recorded in Oglala Lakota County?

The strongest hail on record in Oglala Lakota County measured 4.25.

Where does the hail data for Oglala Lakota 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.