States › South Dakota › 2020
South Dakota, 2020
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 2020 was 2,174 against 2,542 in 2019.
Counties with the most recorded events
Notable events
| Date | County | Event type | Magnitude | Property damage | Deaths | Injuries |
|---|---|---|---|---|---|---|
| 10 Nov 2020 | Minnehaha | Winter Storm | — | — | 2 | 1 |
| 26 Jan 2020 | Hand | Winter Weather | — | — | 1 | 1 |
| 3 Jan 2020 | Moody | Winter Weather | — | — | 1 | 1 |
| 7 May 2020 | Marshall | Strong Wind | 35 mph | — | 1 | 1 |
| 22 Oct 2020 | Brule | Winter Weather | — | — | 1 | — |
| 19 Mar 2020 | Corson | Winter Weather | — | — | 1 | — |
| 12 Feb 2020 | Marshall | Blizzard | — | — | 1 | — |
| 8 Feb 2020 | Hutchinson | Winter Weather | — | — | 1 | — |
| 14 Feb 2020 | Lake | Winter Weather | — | — | 1 | — |
| 30 Aug 2020 | Hand | Tornado | EF2 | — | 1 | — |
| 23 Dec 2020 | Day | Blizzard | — | — | 1 | — |
| 19 Mar 2020 | Union | Winter Weather | — | — | — | 11 |
| 23 Dec 2020 | Minnehaha | Blizzard | — | — | — | 11 |
| 10 Jul 2020 | Oglala Lakota | Thunderstorm Wind | 70 mph | — | — | 1 |
| 8 Aug 2020 | Pennington | Hail | 4.50 in | — | — | 1 |
| 6 Jun 2020 | Lawrence | Thunderstorm Wind | 60 mph | — | — | 1 |
| 10 Aug 2020 | Union | Lightning | — | $2,500,000 | — | — |
| 9 Jun 2020 | Davison | Thunderstorm Wind | 90 mph | $80,000 | — | — |
| 28 Aug 2020 | Kingsbury | Tornado | EF1 | $75,000 | — | — |
| 9 Jun 2020 | Davison | Thunderstorm Wind | 85 mph | $60,000 | — | — |
| 8 Jun 2020 | Charles Mix | Flash Flood | — | $50,000 | — | — |
| 9 Jun 2020 | Douglas | Thunderstorm Wind | 85 mph | $50,000 | — | — |
| 9 Jun 2020 | Davison | Thunderstorm Wind | 81 mph | $50,000 | — | — |
| 9 Jun 2020 | Davison | Thunderstorm Wind | 70 mph | $50,000 | — | — |
| 28 Aug 2020 | Kingsbury | Tornado | EF unrated | — | — | — |
| 8 Jun 2020 | Miner | Tornado | EF unrated | — | — | — |
| 23 Jul 2020 | Butte | Tornado | EF0 | — | — | — |
| 6 Jul 2020 | Lawrence | Tornado | EF2 | — | — | — |
| 10 Jul 2020 | Lawrence | Tornado | EF1 | — | — | — |
| 10 Jul 2020 | Bennett | Tornado | EF0 | — | — | — |
| 4 Jul 2020 | McPherson | Tornado | EF2 | — | — | — |
| 4 Aug 2020 | Tripp | Tornado | EF0 | — | — | — |
| 21 Aug 2020 | Marshall | Tornado | EF0 | — | — | — |
| 4 Aug 2020 | Tripp | Tornado | EF0 | — | — | — |
| 28 Aug 2020 | Deuel | Tornado | EF0 | — | — | — |
| 28 Aug 2020 | Deuel | Tornado | EF1 | — | — | — |
| 28 Aug 2020 | Deuel | Tornado | EF0 | — | — | — |
| 28 Aug 2020 | Deuel | Tornado | EF0 | — | — | — |
| 27 Aug 2020 | Spink | Tornado | EF1 | — | — | — |
| 27 Aug 2020 | Spink | Tornado | EF0 | — | — | — |
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 2020
| Declared | Number | Type | Incident | Title | Counties |
|---|---|---|---|---|---|
| 5 Apr 2020 | DR-4527 | Major disaster | Biological | Covid-19 Pandemic | 196 |
| 13 Mar 2020 | EM-3536 | Emergency | Biological | Covid-19 | 0 |
| 13 Mar 2020 | EM-3526 | Emergency | Biological | Covid-19 | 0 |
| 13 Mar 2020 | EM-3513 | Emergency | Biological | Covid-19 | 0 |
| 13 Mar 2020 | EM-3475 | Emergency | Biological | Covid-19 | 65 |
Flood insurance claims with a 2020 date of loss
18 NFIP claims, 7 of them paid, for $245,245.
Sources: NOAA NCEI Storm Events through 30 Jun 2026; OpenFEMA DisasterDeclarationsSummaries v2 (1 Oct 2026); OpenFEMA NfipClaims v3 (8 Sep 2026). Built 1 Oct 2026.