Hand County
Population 3,121 (2025) 1,437 sq mi
Hand County has recorded 45 tornadoes since 1950, 12th most of 66 counties in South Dakota; the most recent was on July 25, 2023.
Hazard fingerprint Each spoke is this county’s percentile among U.S. counties where that hazard occurs. How it is computed
- Tornado damage paths since 195045
- Wildfire burn scars since 19841
At a glance
The record for Hand County in eight numbers. Each links to its section below.
Tornadoes since 1950
45
12th of 66 in South Dakota
55% more than the typical South Dakota county
DetailsAcres burned since 1984
995
33rd of 66 in South Dakota
1 large fire; the largest was Gann Valley, 2000
DetailsStrongest tornado
F3
August 24, 2006, 24.5 mile path
Federal disaster declarations
22
Most recent: Severe Storms, Straight-Line Winds, Tornadoes, and Flooding, 2026
DetailsTornadoes
About one every 1.7 years since 1950, 2 of them rated F3/EF3 or stronger.
Strongest
August 24, 2006
F3, 24.5 mile path
500 yards wide.
Deadliest
August 30, 2020
1 killed, EF2
0 injured along the whole path.
Most recent
Tuesday, July 25, 2023
EF0, 0.1 mile path
3 years ago.
Every recorded tornado
| Jul 25, 2023 | EF0 | 0.1 | 0 | 0 |
| Aug 30, 2020 | EF2 | 1.6 | 0 | 1 |
| Jul 18, 2018 | EF0 | 0.1 | 0 | 0 |
| Jun 16, 2018 | EF0 | 0.1 | 0 | 0 |
| Jun 16, 2018 | EF0 | 0.4 | 0 | 0 |
| Jun 13, 2017 | EF0 | 0.1 | 0 | 0 |
| Jun 13, 2017 | EF1 | 0.2 | 0 | 0 |
| Jun 13, 2017 | EF0 | 0.1 | 0 | 0 |
| Jun 18, 2014 | EF0 | 0.2 | 0 | 0 |
| May 30, 2014 | EF0 | 3.6 | 0 | 0 |
| Jun 21, 2013 | EF0 | 0.2 | 0 | 0 |
| Jun 14, 2011 | EF0 | 0.1 | 0 | 0 |
| Jun 14, 2011 | EF0 | 0.2 | 0 | 0 |
| Jun 16, 2009 | EF0 | 3.6 | 0 | 0 |
| Jun 16, 2009 | EF0 | 0.7 | 0 | 0 |
| Jul 17, 2008 | EF0 | 0.1 | 0 | 0 |
| Aug 24, 2006 | F3 | 24.5 | 2 | 0 |
| Aug 24, 2006 | F2 | 5.0 | 0 | 0 |
| Jun 24, 2006 | F0 | 0.5 | 0 | 0 |
| Aug 17, 2005 | F0 | 0.0 | 0 | 0 |
| Jun 24, 2003 | F0 | 0.1 | 0 | 0 |
| Jun 17, 1998 | F0 | 0.2 | 0 | 0 |
| Jun 4, 1994 | F0 | 10.0 | 0 | 0 |
| Jul 18, 1993 | F0 | 0.1 | 0 | 0 |
| Jun 7, 1993 | F0 | 0.1 | 0 | 0 |
| Jun 7, 1993 | F0 | 0.1 | 0 | 0 |
| Jun 7, 1993 | F0 | 0.1 | 0 | 0 |
| Aug 22, 1985 | F1 | 0.2 | 0 | 0 |
| Aug 3, 1985 | F0 | 0.1 | 0 | 0 |
| Jun 22, 1984 | F0 | 0.1 | 0 | 0 |
| Sep 2, 1983 | F2 | 0.2 | 0 | 0 |
| Sep 2, 1983 | F2 | 0.2 | 0 | 0 |
| Jun 5, 1980 | F0 | 0.1 | 0 | 0 |
| Jun 5, 1980 | F0 | 0.1 | 0 | 0 |
| Jun 5, 1980 | F0 | 0.1 | 0 | 0 |
| Jun 15, 1978 | F1 | 0.1 | 0 | 0 |
| Jun 3, 1975 | F1 | 2.0 | 0 | 0 |
| Apr 20, 1974 | F1 | 0.5 | 0 | 0 |
| Jul 3, 1971 | F3 | 0.1 | 0 | 0 |
| Jul 3, 1971 | F2 | 2.3 | 0 | 0 |
| Jul 3, 1971 | F2 | 20.1 | 0 | 0 |
| May 14, 1965 | F0 | 0.1 | 0 | 0 |
| Jun 18, 1964 | F1 | 11.1 | 10 | 0 |
| Jun 23, 1959 | F2 | 0.1 | 0 | 0 |
| May 25, 1959 | F2 | 0.1 | 0 | 0 |
- Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Hand County: 1.
- Weak tornadoes were under-recorded before Doppler radar coverage became national in the early 1990s, so earlier decades read low. Ratings use the Fujita scale before February 2007 and the Enhanced Fujita scale after.
Storm Prediction Center severe weather database, 1950 to 2025.
Hurricanes and tropical storms
No tropical storm or hurricane has tracked within 100 miles since records began in 1851.
Wildfire and smoke
995 acres burned in 1 large fire since 1984, equal to 0.1% of the land.
Largest
March 6, 2000
Gann Valley Fire, 2,533 acres
995 acres inside Hand County.
Most recent
March 6, 2000
Gann Valley Fire
2,533 acres in total.
Every large fire
| Gann Valley | 2000 | 995 | 2,533 |
- Large fires mapped by the Monitoring Trends in Burn Severity program since 1984: 1,000 acres or more in the West, 500 or more in the East. Prescribed burns are excluded. Acres here are the part of each perimeter inside this place.
Monitoring Trends in Burn Severity (USGS and U.S. Forest Service), 1984 to 2026.
Smoke overhead
Smokiest year
2023: 60 days
Heavy smoke on 36 days in 2021, the most of any year.
Last 10 years
30.9 days a year
Medium or heavy smoke, 2016 to 2025.
2025
23 days
Medium or heavy smoke. 37 so far in 2026.
- A smoke day is a date on which a smoke plume traced by NOAA Hazard Mapping System analysts from satellite imagery covered this place's point (the county's population centre or the city centre). Counts here are of medium or heavy smoke. Since 2018 analysts have often drawn light smoke as one area over most of the continent, so light-smoke counts are not comparable from year to year. The plumes show smoke anywhere in the air above, not air quality at the ground, and smoke hidden by cloud is missed.
NOAA Hazard Mapping System smoke analysis, 2011 to 2026, retrieved October 30, 2026.
Floods and flood insurance
8 federal flood insurance claims since 1997, with $122,000 paid.
Claims by ZIP code
| 57373 | 6 | $77,000 |
Flood events since 1996
- Flash Flood23
- Flood19
This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).
OpenFEMA NFIP Redacted Claims v3, refreshed August 4, 2026. NOAA Storm Events through 2026.
Drought
In severe drought or worse for 126 of 1,581 months since 1895 (8%); the longest spell lasted 22 months.
126
Months in severe drought or worse since 1895
49
Months in extreme drought
8%
Share of all months, severe or worse
31
Drought reports to the Weather Service since 1996
Lowest reading
August 1934
−7.28, extreme drought
Longest severe spell
22 months
June 1933 to March 1935.
Latest month
September 2026
+1.08, slightly wet
Last severe month: June 2021.
- The Palmer Drought Severity Index is computed by NOAA each month from the county's average temperature and precipitation, relative to the county's own climate. Zero is normal; -3 or lower is severe drought and -4 or lower extreme drought. It describes the long-term balance of moisture, not water supply or crop losses.
NOAA NCEI nClimDiv county Palmer Drought Severity Index, 1895 to September 2026, issued October 6, 2026.
Earthquakes
3 earthquakes of magnitude 4 or more within 50 miles since 1900; the largest was magnitude 4.5 in 1911.
1
Magnitude 2.5+ inside the county since 1973
11
Magnitude 3+ within 50 miles since 1973
3
Magnitude 4+ within 50 miles since 1900
0
Magnitude 5+ within 50 miles since 1900
Largest within 50 miles
June 2, 1911
Magnitude 4.5
South of Huron, South Dakota; 24.8 miles away.
Most recent, magnitude 3 or more
December 8, 2020
Magnitude 3.2
10 km NNW of Bowdle, South Dakota; 48.1 miles away.
Every earthquake of magnitude 4 or more within 50 miles
| Mar 4, 1983 | 4.4 | 5.6 |
| Jul 23, 1946 | 4.1 | 8.3 |
| Jun 2, 1911 | 4.5 | 24.8 |
- Earthquakes of magnitude 2.5 or more in the USGS Comprehensive Catalog since 1900. Within 50 miles means the epicentre lies within 50 miles of the county boundary (or inside the county).
- Small earthquakes were under-recorded before the modern seismic networks of the 1970s and are still missed in remote areas, so early decades read low. Magnitudes are as the catalogue reports them and mix scales (moment, local and body-wave).
USGS ANSS Comprehensive Earthquake Catalog, 1900 to present, retrieved October 30, 2026.
Severe weather and other events
876 events in the National Weather Service record, 779 of them since 1996.
217
Hail reports, 1 inch or larger
26
Hail, 2 inches or larger
183
Damaging gusts, 58 mph+
110
Winter weather events since 1996
16
Heat events since 1996
36
Cold events since 1996
Largest hail
July 3, 1971
4.00 inches
Strongest measured or estimated gust
June 29, 2026
112 mph
More event types since 1996
| Dust storms and dust devils | 4 | 0 |
Costliest events since 1996
- Apr 1, 2019Flood$830,000
National Weather Service narrative
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…
- Jun 20, 2024Flash Flood$191,000
National Weather Service narrative
Hand county emergency management and sheriffs office has posted numerous photos of water in basements, water over roads and significant ponding in agricultural areas. Water was widespread across the southern half of the county.
- Apr 10, 2023Flood$150,000
National Weather Service narrative
The snowfall during the season in northeast and central South Dakota exceeded normal levels, with many locations ranking among the top 10 for the snowiest seasons. Additionally, the late spring conditions were unusually cold, resulting in a persistent and exceptionally deep snowpack until early April. The depth of the snowpack ranged from 15 to 30 plus inches, containing approximately 4 to 8 inches of snow water equivalent. However, the weather pattern shifted to abnormally warm conditions in the middle of April. Starting from April 9th, temperatures rapidly rose into the 40s and 50s in areas with deep snowpack, and occasionally reached the 60s and 70s thereafter. The rapid…
- Jul 30, 2010Flash Flood$150,000
National Weather Service narrative
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.
- Aug 3, 2005Flash Flood$15,000
National Weather Service narrative
Heavy rains of 3 to 6 inches fell between Highmore and Ree Heights. Many township roads were flooded and a section of railroad tracks was washed out west of Ree Heights.
- Jun 21, 2013Flash Flood$5,000
National Weather Service narrative
Flash flooding washed a culvert out of the road.
- Storm Events records before 1996 cover only tornadoes, thunderstorm wind and hail. Damage figures are as reported by the National Weather Service at the time, not adjusted for inflation.
NOAA NCEI Storm Events Database, 1950 to 2026, issued October 26, 2026.
Weather records
From Miller, 0.7 miles from the county’s population centre, with records from 1902.
- All-time high
- 113°FJul 15, 1931
- All-time low
- −48°FJan 12, 1912
- Warmest night
- 91°FJul 15, 1931
- Coldest day
- −22°FJan 11, 1912
- Wettest day
- 5.10 inAug 4, 2007
- Snowiest day
- 15.0 inFeb 21, 2011
- Hottest year
- 1987mean 51.3°F
- Coldest year
- 1917mean 40.5°F
- Wettest year
- 201936.53 in
- Driest year
- 19767.60 in
- Snowiest season
- 88.6 in2018-19
Median first snow
November 9
Earliest: September 24, 1912
Median last snow
April 6
Latest: May 14, 1907
0 of 90 winters had no measurable snow.
Station Miller (USC00395561), 1,576 ft elevation, 0.7 miles from the population centre. Daily records from 1902 to October 3, 2026; 95.4% of days in the last 30 years are complete. Records at a single station can differ from a city’s official threaded record, which may combine several stations.
NOAA NCEI Global Historical Climatology Network Daily.
Federal disaster declarations
22 since 1953. The most recent: Severe Storms, Straight-Line Winds, Tornadoes, and Flooding, September 1, 2026.
| Sep 1, 2026 | Severe Storm | DR-4938-SD |
| Aug 15, 2024 | Flood | DR-4807-SD |
| Jul 6, 2023 | Flood | DR-4718-SD |
| Apr 5, 2020 | Biological | DR-4527-SD |
| Mar 13, 2020 | Biological | EM-3475-SD |
| Jun 7, 2019 | Flood | DR-4440-SD |
| May 13, 2011 | Flood | DR-1984-SD |
| Sep 23, 2010 | Severe Storm | DR-1938-SD |
| May 13, 2010 | Flood | DR-1915-SD |
| Mar 10, 2010 | Severe Storm | DR-1887-SD |
| Jul 9, 2008 | Severe Storm | DR-1774-SD |
| Dec 20, 2005 | Severe Storm | DR-1620-SD |
| Sep 10, 2005 | Coastal Storm | EM-3234-SD |
| Apr 7, 1997 | Flood | DR-1173-SD |
| Jan 10, 1997 | Severe Storm | DR-1156-SD |
| May 26, 1995 | Flood | DR-1052-SD |
| Mar 14, 1995 | Snowstorm | DR-1045-SD |
| Jun 21, 1994 | Severe Storm | DR-1031-SD |
| Jul 19, 1993 | Severe Storm | DR-999-SD |
| May 3, 1986 | Flood | DR-764-SD |
| Jun 17, 1976 | Drought | EM-3015-SD |
| Apr 18, 1969 | Flood | DR-257-SD |
This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).
OpenFEMA Disaster Declarations Summaries, retrieved October 30, 2026. Statewide declarations are not listed.
How this compares
Where Hand County stands among 66 counties in South Dakota and 3,143 in the United States.
| Tornadoes since 1950 | 45 | 12 / 66 |
| Tornadoes rated F3/EF3 or stronger | 2 | 12 / 66 |
| Tropical cyclones within 50 mi | 0 | — |
| Hurricane-strength passes within 50 mi | 0 | — |
| Wildfire acres since 1984 | 995 | 33 / 66 |
| Flood insurance claims | 8 | 35 / 66 |
| Flood insurance paid | $122,000 | 34 / 66 |
| Disaster declarations | 22 | 11 / 66 |
| Flood events since 1996 | 42 | 26 / 66 |
| Hail and wind events since 1996 | 509 | 19 / 66 |
| Winter storm events since 1996 | 110 | 48 / 66 |
| Reported damage since 1996 | $1.3 million | 50 / 66 |
| River crests at major flood stage | 0 | — |
| High tide flooding days a year, last 10 years | 0.0 | — |
| Months in severe drought since 1895 | 126 | 44 / 66 |
| Medium or heavy smoke days a year, last 10 years | 30.9 | 24 / 66 |
| Earthquakes M4+ within 50 mi since 1900 | 3 | 8 / 66 |
| Earthquakes M2.5+ in the county since 1973 | 1 | 14 / 66 |
Neighbouring counties
| Beadle County | 40 | 0 |
| Buffalo County | 17 | 0 |
| Faulk County | 22 | 0 |
| Hyde County | 15 | 0 |
| Jerauld County | 15 | 0 |
| Spink County | 50 | 0 |
Sources and vintage
Every number on this page comes from these public records.
- Tornadoes NOAA Storm Prediction Center severe weather database, through 2025.
- Tropical cyclones NOAA National Hurricane Center HURDAT2 (Atlantic; Northeast and Central Pacific), through 2025.
- Wildfire USGS/USFS Monitoring Trends in Burn Severity, through 2026.
- Storm events NOAA NCEI Storm Events Database, through 2026.
- Flood insurance OpenFEMA NFIP Redacted Claims v3, refreshed August 4, 2026.
- Declarations OpenFEMA Disaster Declarations Summaries v2, retrieved October 30, 2026.
- Weather records NOAA NCEI Global Historical Climatology Network Daily, station USC00395561.
- River crests NOAA National Weather Service, National Water Prediction Service river gauges, retrieved October 30, 2026.
- Drought NOAA NCEI nClimDiv county Palmer Drought Severity Index, through September 2026.
- Smoke NOAA NESDIS Hazard Mapping System smoke analysis, retrieved October 30, 2026.
- Earthquakes USGS ANSS Comprehensive Earthquake Catalog (ComCat), retrieved October 30, 2026.
Joins, thresholds and known limits are set out in the methodology. Found an error? Report it. Page built October 30, 2026.