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Risk: Very Low

Hand County, SD Environment & Hazard Risk

Very Low natural hazard risk, led by wildfire. 779 storm events since 1996.

Expected yearly loss
$4.4M
Very Low nationally
Storm events since 1996
779
Most often hail
Flood insurance policies
1
0.1% of homes
Hurricanes nearby
0
Since 1851

Natural hazard risk

FEMA National Risk Index, December 2025

Overall risk

Very Low

Score 6.5 of 100

Social vulnerability

Very Low

Score 14.8 of 100

Community resilience

Relatively Moderate

Score 58.6 of 100

Community resilience runs the other way: a higher rating means a community can recover faster.

Building value exposed: $1.3B · Agriculture value exposed: $289M · Risk-adjusted yearly loss: $3.7M

Risk by hazard

  • WildfireRelatively Low$398K/yr expected annual loss, about once every 525 years
  • Cold waveRelatively Low$1.7M/yr expected annual loss, about 9.1 events a year
  • DroughtRelatively Low$235K/yr expected annual loss, about 13 events a year
  • HailRelatively Low$359K/yr expected annual loss, about 4.0 events a year
  • Winter weatherRelatively Low$52K/yr expected annual loss, about 18 events a year
  • Ice stormRelatively Low$55.1K/yr expected annual loss, about once every 2 years
  • TornadoVery Low$299K/yr expected annual loss, about once every 2 years
  • Heat waveVery Low$43.4K/yr expected annual loss, about 4.5 events a year
  • Strong windVery Low$101K/yr expected annual loss, about 2.7 events a year
  • EarthquakeVery Low$10.4K/yr expected annual loss, about once every 2,710 years
  • LandslideVery Low$7/yr expected annual loss, about once every 6 years
  • LightningVery Low$3,468/yr expected annual loss, about 34 events a year

Bars show the national percentile score (0 to 100) for each hazard. Dollar figures are expected annual losses to buildings, people and crops. Not rated here: avalanche, coastal flooding, hurricane, riverine flooding, tsunami, volcanic activity.

Flood risk and insurance

National Flood Insurance Program and FEMA flood maps

Check the flood zone for an address

Homes with flood insurance
1 of 1,579 (0.1%)
Homes in high-risk flood zones
0
Flood claims since 1978
8
Claims paid since 1978
$122K

Flood claims paid per year

Flood claims paid per year in Hand County
Beta
  • Late spring storms$73.8K · 1 claim
  • Flooding$44.7K · 2 claims

Storm history

Since 1996: 779 events, 3 deaths, $37.2M in damage

  • Hail287
  • Thunderstorm Wind160
  • High Wind62
  • Blizzard41
  • Extreme Cold/Wind Chill33
  • Drought31
  • Heavy Snow30
  • Winter Storm27
  • Flash Flood23
  • Tornado22 · 1 death
Beta

Events per year

Storm events per year in Hand County
12
35
31
22
26
26
30
22
54
21
24
41
29
21
18
39
27
21
25
45
Beta

40 tornadoes on record (EF0 14, EF1 1, EF2 1, F0 10, F1 3, F2 8, F3 1).

Most damaging storms

Since 1996, ranked by deaths, injuries and damage

  • Flood06/01/2019

    Polo, Hand County

    $35.7M damage

    What happened

    Spring snowmelt and heavy rain flooding from March, April, and May continued into June. This combined with above normal June rainfall resulted in hundreds of thousands of acres of crops damaged or unplanted across central and northeast South Dakota. For the entire state of South Dakota, nearly 4 million acres of crops were left unplanted as a result of the flooding. Total damaged or unplanted crop loss estimates for central and northeast South Dakota were near 307 million dollars.

  • Winter Weather01/27/2020

    Hand

    1 death, 1 injured

    What happened

    Icy roads contributed to a fatal two-vehicle crash on U.S. Highway 14 three miles west of Wessington in Hand county. One person died and another was seriously injured. A pickup was westbound on U.S. Highway 14 when the driver lost control due to icy conditions and slid into and eastbound pickup.

  • Winter Weather04/01/2025

    Hand

    1 death

    What happened

    A single vehicle crash resulted in a fatality 1 mile west of Wessington on highway 14 due to icy conditions on the morning of April 2nd. The vehicle left the road and landed in a ditch where it rolled. The COOP observer 2 miles southeast of Wessington recorded 3 inches of snow early on April 1st, which would see partial melting during the day as temperatures warmed into the mid 30s before falling below freezing overnight.

  • TornadoEF2, 1.6 mi path, 300 yd wide08/31/2020

    Polo, Hand County

    1 death

    What happened

    The tornado initially touched down in the pasture land east of South Dakota Highway 45, roughly 0.8 miles south of 184th Street. It continued to track north for roughly 0.6 miles, damaging a tree grove and fence line. The track then turned west northwest and crossed South Dakota Highway 45, roughly 0.2 miles south of 184th street. A southbound RV pulling an enclosed trailer was struck. The trailer detached from the RV and the RV was lofted and rolled roughly 200 yards into a corn field on the west side of of South Dakota Highway 45. The driver was pronounced dead at the scene. The tornado track continued west northwest through the corn field for an estimated 0.4 miles. The tornado was at its peak width and intensity at this point. Corn was completely flattened in some areas with a distinct convergent pattern. As the tornado weakened and roped out the path took a southwest turn and persisted for roughly another 0.6 miles before coming to an end in the corn field.

  • Flash Flood07/30/2010

    Danforth, Hand County

    2 injured, $150K damage

    What happened

    Very heavy rains of 5 to 10 inches caused the Rosehill Dam to break in the early morning hours in southeast Hand county. Flash flooding began around 1 am CDT with two campers being swept up around 130 am CDT. The two campers clung to a tree until they could be rescued around 6 am CDT. They were both injured with one camper being treated for hypothermia and other airlifted to Sioux Falls to be treated for broken ribs and head trauma. ||The dam broke at 330 am CDT with the spillway breaking at 420 am CDT. There was a 100 to 150 foot hole left by the dam break. The flash flooding continued downstream on Sand Creek causing damage to area farms, filling basements, and flooding many roads.

  • Flood04/01/2019

    Polo, Hand County

    $830K damage

    What happened

    The continuation of snowmelt from a much above normal snowfall winter combined with a historic heavy snow/blizzard in mid-April resulted in widespread flooding across central and northeast South Dakota. Countless roads along with thousands of acres of cropland were flooded throughout April. Impacts include damaged roads, culverts, and bridges, and livestock, homes, and businesses were affected. Delayed planting resulted across all of the region as well. Cattle and calves were stressed by the cold and wet pattern, as the mud and cold caused some sickness with the livestock. Flooded roads made it difficult for many farmers or ranchers to get to their fields or livestock. There was a water rescue near Frederick on April 7th as someone drove into a washed out road. The wet pattern along with the flooding continued into May, further delaying planting across the region.||All counties declared emergencies/disasters in March and April due to the widespread flooding and March blizzard. South Dakota's governor declared a disaster for the state in March. This declaration was followed by a disaster declaration by the President of the United States. As a result, 24 of the 26 counties...

Drinking water

4 community water systems serve about 13,550 people. Violations since 2021.

1 system had health-based violations, such as a contaminant over the legal limit or a missed treatment step.

  • Mid-Dakota Rural WaterServes 11,833 · Surface water · PrivateNo health violations
  • MillerServes 1,349 · Purchased surface water · Local governmentNo health violations
  • Saint LawrenceServes 198 · Purchased surface water · Local governmentNo health violations
  • WessingtonServes 170 · Purchased surface water · Local government1 health violation+1 monitoring or reporting

Largest systems by population served. Monitoring and reporting violations mean required tests or notices were late or missing, not that the water was unsafe.

Pollution sites

0 Superfund sites and 0 toxic release facilities in Hand County

No Superfund sites or toxic release facilities in Hand County in our data.

Superfund sitesToxic release facilitiesEPA inspections and enforcementAir toxics cancer risk4 historic places

Frequently asked questions

How risky is Hand County for natural disasters?
FEMA rates Hand County very low for overall natural hazard risk, with expected losses of $4.4M a year. The highest-rated hazards are wildfire (relatively low), cold wave (relatively low), drought (relatively low).
What storms are most common in Hand County?
Since 1996, NOAA recorded 779 storm events affecting Hand County, most often hail (287), thunderstorm wind (160), high wind (62).
How many tornadoes have hit Hand County?
40 tornadoes have been recorded in Hand County since 1950, including 1 rated F3/EF3 or stronger.
How many homes in Hand County have flood insurance?
1 residential flood insurance policy is in force in Hand County, covering about 0.1% of homes. The program has paid $122K on 8 claims here since 1978.
What is the weather like in Hand County?
At Miller, average highs reach 85°F in Jul and lows fall to 7°F in Jan, with 22.3 inches of rain a year (1991-2020 normals).

Source: FEMA (National Risk Index, NFIP), NOAA (Storm Events, HURDAT2, Climate Normals), EPA · Last updated 08/01/2026 · Storm counts include events in forecast zones that touch the county. This product uses the FEMA OpenFEMA API, but is not endorsed by FEMA.

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