South Dakota

Storm History: Hanson County, South Dakota

511 episodes, 566 events since 1954

Every storm the National Weather Service has filed in Hanson County, South Dakota: floods, hail, damaging wind, tornadoes, winter storms, heat and the rest, with the most serious on record. Events filed by forecast zone count for every county the zone covers.

The record

Events
566
Deaths
0
Injuries
18
Damage
$57 million
Episodes
511

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

Open the live radar over Hanson County

Every year

From 1996 the record holds 48 kinds of event with each office’s narrative; before that, tornadoes, hail and thunderstorm wind only, and before 1955 tornadoes alone.

By kind of event

Counted under the kind that heads each episode.

Kind of eventEventsDeathsInjuriesDamage
Hail9200$135,000
Flood6300$32 million
Winter Weather5205
Tornado4901$1.4 million
High Wind4800$67,000
Winter Storm4800
Drought4300$21 million
Blizzard4207$240,000
Thunderstorm Wind3305$1.5 million
Excessive Heat2100
Flash Flood1700$2,000
Heavy Snow1600$5,000
Extreme Cold/Wind Chill1600
Cold/Wind Chill1300
Ice Storm500$1.0 million
Heat500
Lightning100$50,000
Wildfire100
Strong Wind100

The deadliest

None recorded.

The costliest

Damage within this county, in the dollars of its year.

The largest hail

The largest stone in each episode, which may have fallen in a neighboring county of the same episode.

The strongest tornadoes

Every tornado in Hanson County, with its track

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in Hanson CountyEvery warning in Hanson County since 1986Every county in South Dakota

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24.