States › South Dakota › 2011
South Dakota, 2011
The year's recorded storm events, federal disaster declarations and flood insurance claims.
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.
Events by hazard
Includes events recorded by forecast zone. The state's yearly total for 2011 was 1,906 against 1,957 in 2010.
Counties with the most recorded events
Notable events
| Date | County | Event type | Magnitude | Property damage | Deaths | Injuries |
|---|---|---|---|---|---|---|
| 15 Apr 2011 | Hamlin | Winter Weather | — | — | 2 | 1 |
| 20 Jun 2011 | Lyman | Flash Flood | — | — | 2 | — |
| 9 Jan 2011 | Minnehaha | Winter Weather | — | — | 1 | — |
| 17 Jan 2011 | Brookings | Winter Weather | — | — | 1 | — |
| 8 Mar 2011 | Brown | Cold/Wind Chill | — | — | 1 | — |
| 3 Aug 2011 | Pennington | Lightning | — | — | 1 | — |
| 17 Feb 2011 | Roberts | Strong Wind | 55 mph | — | — | 1 |
| 2 Dec 2011 | Day | Strong Wind | 49 mph | — | — | 1 |
| 4 Oct 2011 | Charles Mix | Wildfire | — | — | — | 1 |
| 1 Apr 2011 | Beadle | Flood | — | $2,000,000 | — | — |
| 31 Jul 2011 | Lawrence | Hail | 2.00 in | $2,000,000 | — | — |
| 18 Aug 2011 | Yankton | Hail | 1.75 in | $2,000,000 | — | — |
| 1 Apr 2011 | Kingsbury | Flood | — | $1,000,000 | — | — |
| 1 Apr 2011 | Yankton | Flood | — | $1,000,000 | — | — |
| 1 Apr 2011 | Hutchinson | Flood | — | $1,000,000 | — | — |
| 1 Apr 2011 | Sanborn | Flood | — | $1,000,000 | — | — |
| 1 Apr 2011 | Davison | Flood | — | $1,000,000 | — | — |
| 7 Aug 2011 | Butte | Hail | 2.50 in | $1,000,000 | — | — |
| 1 Apr 2011 | Hamlin | Flood | — | $800,000 | — | — |
| 7 Aug 2011 | Pennington | Hail | 1.75 in | $750,000 | — | — |
| 18 Aug 2011 | Bennett | Hail | 1.75 in | $700,000 | — | — |
| 1 Apr 2011 | Brookings | Flood | — | $500,000 | — | — |
| 1 Apr 2011 | Hanson | Flood | — | $500,000 | — | — |
| 18 Aug 2011 | Yankton | Thunderstorm Wind | 76 mph | $500,000 | — | — |
| 1 Aug 2011 | Ziebach | Hail | 2.50 in | $500,000 | — | — |
| 7 Aug 2011 | Pennington | Hail | 1.75 in | $500,000 | — | — |
| 7 Aug 2011 | Pennington | Hail | 1.75 in | $500,000 | — | — |
| 7 Aug 2011 | Pennington | Hail | 2.75 in | $500,000 | — | — |
| 17 Aug 2011 | Jackson | Hail | 2.75 in | $500,000 | — | — |
| 7 Aug 2011 | Custer | Hail | 2.00 in | $400,000 | — | — |
| 1 Jul 2011 | Moody | Thunderstorm Wind | 70 mph | $300,000 | — | — |
| 20 May 2011 | Harding | Flood | — | $300,000 | — | — |
| 25 Jun 2011 | Pennington | Hail | 1.75 in | $250,000 | — | — |
| 7 Jul 2011 | Custer | Hail | 1.50 in | $250,000 | — | — |
| 7 Aug 2011 | Pennington | Hail | 1.50 in | $250,000 | — | — |
| 1 Apr 2011 | Moody | Flood | — | $200,000 | — | — |
| 18 Aug 2011 | Bennett | Hail | 2.75 in | $200,000 | — | — |
| 1 Jul 2011 | Lake | Thunderstorm Wind | 70 mph | $150,000 | — | — |
| 27 Jul 2011 | Pennington | Thunderstorm Wind | 70 mph | $150,000 | — | — |
| 1 Apr 2011 | Minnehaha | Flood | — | $100,000 | — | — |
Up to 40 events with deaths, injuries, damage of $50,000 or more, or a tornado rating, ranked by deaths, injuries and damage.
Federal disaster declarations in 2011
| Declared | Number | Type | Incident | Title | Counties |
|---|---|---|---|---|---|
| 13 May 2011 | DR-1984 | Major disaster | Flood | Flooding | 40 |
Flood insurance claims with a 2011 date of loss
927 NFIP claims, 568 of them paid, for $14,453,393.
Sources: NOAA NCEI Storm Events through 30 Jun 2026; OpenFEMA DisasterDeclarationsSummaries v2 (29 Sep 2026); OpenFEMA NfipClaims v3 (8 Sep 2026). Built 30 Sep 2026.