Hail in Roberts County, South Dakota

Hail in Roberts County, South Dakota: 132 recorded events between 1956 and 2025. The strongest on record measured 4. That places the county #1,076 nationally and #57 statewide for this hazard.

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

The busiest decade for hail in Roberts County is the 2000s, when 47 of the county's 132 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 Roberts County archive, hail makes up 38.7% of all recorded severe weather across 6 hazard types. Nationally the county sits at #1,076 for this hazard and #57 within South Dakota, putting it in the 65.3 percentile of all U.S. counties.

Jun is the peak month for hail in Roberts County with 37 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 139

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

132 hail events are recorded in Roberts County between 1956 and 2025, causing 0 direct deaths.

What is the strongest hail recorded in Roberts County?

The strongest hail on record in Roberts County measured 4.

Where does the hail data for Roberts 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.