South Dakota

Storm History: Bon Homme County, South Dakota

624 episodes, 812 events since 1954

Every storm the National Weather Service has filed in Bon Homme 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
812
Deaths
0
Injuries
3
Damage
$100 million
Episodes
624

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 Bon Homme 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
Hail23200$900,000
Flood9400$31 million
Tornado8703$1.0 million
Drought5900$64 million
Winter Storm5300$100,000
Thunderstorm Wind4900$1.7 million
Winter Weather4700
Blizzard4400$166,000
High Wind3900$100,000
Flash Flood2900$160,000
Excessive Heat2300
Heavy Snow1800
Extreme Cold/Wind Chill1300
Cold/Wind Chill1000
Heat500
Ice Storm400$1.0 million
Lightning300$35,000
Heavy Rain100
Wildfire100$70,000
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 Bon Homme County, with its track

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in Bon Homme CountyEvery warning in Bon Homme 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.