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Flood in Perkins County, South Dakota
30 floods and flash floods events in the NCEI Storm Events record, 1950 to 2026. Event types counted: Flood, Flash Flood, Coastal Flood, Lakeshore Flood.
NCEI notes that Storm Data is compiled from a variety of sources including the National Weather Service, other federal, state and local agencies, the media and the public; that property and crop damage figures are estimates; and that some events are recorded by NWS forecast zone rather than by county. FEMA notes that NFIP claim records are redacted and aggregated to protect the privacy of policyholders. Storm records through 30 Jun 2026.
NCEI records 30 flood events in Perkins County, South Dakota, between 1950 and 2026, spread over 13 years.
June is the busiest month, with 8 of the recorded events. The last 20 years account for 26 events against 4 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 0.9% of the 3,390 flood events recorded in South Dakota; its 1.0 per 100 square miles compares with 4.5 statewide.
Compared with South Dakota
| Measure | Perkins County | South Dakota | US |
|---|---|---|---|
| Flood events since 1950 | 30 | 3,390 | 183,559 |
| Per 100 square miles | 1.0 | 4.5 | 5.2 |
| Per 10,000 residents | 106.4 | 37.9 | 5.5 |
| Deaths recorded | 0 | 10 | 2,961 |
| Busiest month | June | June | June |
By year
Seasonality
0Feb
0Mar
5Apr
2May
6Jun
8Jul
5Aug
3Sep
1Oct
0Nov
0Dec
0
Recorded events
All 30 events, most recent first. Magnitude is hail size, tornado rating or wind speed as recorded.
| Date | Event type | Magnitude | Property damage | Crop damage | Deaths | Injuries | Geography |
|---|---|---|---|---|---|---|---|
| 4 Aug 2023 | Flash Flood | — | — | — | — | — | County |
| 24 May 2019 | Flood | — | — | — | — | — | County |
| 22 May 2019 | Flood | — | $250K | — | — | — | County |
| 23 Mar 2019 | Flood | — | $100K | — | — | — | County |
| 26 Jul 2015 | Flash Flood | — | $30K | — | — | — | County |
| 7 Jul 2015 | Flash Flood | — | — | — | — | — | County |
| 27 Jun 2014 | Flash Flood | — | — | — | — | — | County |
| 27 Jun 2014 | Flash Flood | — | — | — | — | — | County |
| 20 Jun 2014 | Flood | — | — | — | — | — | County |
| 18 Jun 2014 | Flood | — | — | — | — | — | County |
| 10 Mar 2014 | Flood | — | — | — | — | — | County |
| 7 Sep 2013 | Flash Flood | — | $100K | — | — | — | County |
| 28 Aug 2013 | Flood | — | — | — | — | — | County |
| 27 Aug 2013 | Flash Flood | — | $20K | — | — | — | County |
| 25 Jul 2011 | Flash Flood | — | — | — | — | — | County |
| 6 Jul 2011 | Flash Flood | — | $5K | — | — | — | County |
| 10 May 2011 | Flood | — | — | — | — | — | County |
| 9 May 2011 | Flash Flood | — | — | — | — | — | County |
| 9 May 2011 | Flash Flood | — | — | — | — | — | County |
| 16 Mar 2011 | Flood | — | — | — | — | — | County |
| 16 Mar 2011 | Flood | — | — | — | — | — | County |
| 22 Jun 2010 | Flood | — | $100K | — | — | — | County |
| 14 Apr 2009 | Flash Flood | — | — | — | — | — | County |
| 12 Apr 2009 | Flood | — | — | — | — | — | County |
| 17 Mar 2009 | Flood | — | — | — | — | — | County |
| 5 Jun 2008 | Flood | — | $500K | $500K | — | — | County |
| 15 Jul 2001 | Flash Flood | — | $200K | — | — | — | County |
| 19 Jun 1998 | Flood | — | — | — | — | — | Forecast zone |
| 11 Jun 1997 | Flash Flood | — | $25K | — | — | — | County |
| 27 May 1996 | Flood | — | — | — | — | — | Forecast zone |
Questions and answers
How many flood events has Perkins County had?
30 events in the NCEI Storm Events record between 1950 and 2026. Reporting of floods and flash floods became far more complete after 1996, so early decades undercount.
When was the last recorded flood event in Perkins County?
4 Aug 2023 (Flash Flood). Records reach NCEI about 120 days after the month ends.
What was the most damaging flood event recorded in Perkins County?
The flood of 5 Jun 2008, with property damage estimated by NCEI at $500K and crop damage at $500K.
How does Perkins County compare with South Dakota for flood?
1.0 events per 100 square miles against 4.5 statewide; the county holds 30 of the state's 3,390 recorded events.
Provenance
NOAA NCEI Storm Events Database, yearly details files through 30 Jun 2026, public domain. County-recorded events plus zone-recorded events whose forecast zone is named for the county (marked "Forecast zone"). Population and area from the US Census Bureau (2021). Built 1 Oct 2026. See the methodology, the Flood hub and the county page.