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Wind in Walworth County, South Dakota
258 damaging wind events in the NCEI Storm Events record, 1950 to 2026. Event types counted: Thunderstorm Wind, High Wind, Strong Wind.
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 258 wind events in Walworth County, South Dakota, between 1950 and 2026, spread over 46 years.
July is the busiest month, with 77 of the recorded events. The last 20 years account for 158 events against 72 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 1.4% of the 18,009 wind events recorded in South Dakota; its 36.5 per 100 square miles compares with 23.8 statewide.
212 wind reports with a measured or estimated speed reached the 58 mph severe threshold, and 26 reached hurricane force (74 mph).
Some winter weather and high wind events are recorded by NWS forecast zone rather than by county; zone-recorded events whose zone is named for the county are included and marked "Forecast zone" in the table.
Compared with South Dakota
| Measure | Walworth County | South Dakota | US |
|---|---|---|---|
| Wind events since 1950 | 258 | 18,009 | 701,953 |
| Per 100 square miles | 36.5 | 23.8 | 19.9 |
| Per 10,000 residents | 491.6 | 201.1 | 21.1 |
| Deaths recorded | 0 | 16 | 2,166 |
| Busiest month | July | July | June |
By year
Seasonality
8Feb
4Mar
6Apr
21May
19Jun
49Jul
77Aug
43Sep
8Oct
11Nov
7Dec
5
Magnitude distribution
NWS wind thresholds
- under 58 mph
- below severe threshold
- 58–73 mph
- severe
- 74–95 mph
- hurricane-force
- 96 mph and over
- extreme
Wind speed converted from the knots NCEI records; estimated and measured gusts are combined. Events without a speed are not binned.
Recorded events
The 200 events kept for this page are the 120 most recent plus the 80 with the most damage, deaths or injuries out of 258. Magnitude is hail size, tornado rating or wind speed as recorded.
| Date | Event type | Magnitude | Property damage | Crop damage | Deaths | Injuries | Geography |
|---|---|---|---|---|---|---|---|
| 27 Jun 2026 | Thunderstorm Wind | 59 mph | — | — | — | — | County |
| 15 Jun 2026 | Thunderstorm Wind | 63 mph | — | — | — | — | County |
| 8 Jun 2026 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 22 Apr 2026 | Thunderstorm Wind | 61 mph | — | — | — | — | County |
| 22 Apr 2026 | Thunderstorm Wind | 68 mph | — | — | — | — | County |
| 22 Apr 2026 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 12 Mar 2026 | High Wind | 71 mph | — | — | — | — | Forecast zone |
| 21 Jan 2026 | High Wind | 64 mph | — | — | — | — | Forecast zone |
| 16 Jan 2026 | High Wind | 61 mph | — | — | — | — | Forecast zone |
| 18 Dec 2025 | High Wind | 71 mph | — | — | — | — | Forecast zone |
| 9 Dec 2025 | High Wind | 66 mph | — | — | — | — | Forecast zone |
| 26 Oct 2025 | High Wind | 58 mph | — | — | — | — | Forecast zone |
| 20 Oct 2025 | High Wind | 59 mph | — | — | — | — | Forecast zone |
| 14 Sep 2025 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 4 Sep 2025 | High Wind | 62 mph | — | — | — | — | Forecast zone |
| 8 Aug 2025 | Thunderstorm Wind | 63 mph | — | — | — | — | County |
| 8 Aug 2025 | Thunderstorm Wind | 69 mph | — | — | — | — | County |
| 26 Jul 2025 | High Wind | 58 mph | — | — | — | — | Forecast zone |
| 23 Jul 2025 | Thunderstorm Wind | 76 mph | — | — | — | — | County |
| 21 Jul 2025 | Thunderstorm Wind | 63 mph | — | — | — | — | County |
| 14 Jul 2025 | High Wind | 60 mph | — | — | — | — | Forecast zone |
| 14 Jul 2025 | High Wind | 59 mph | — | — | — | — | Forecast zone |
| 14 Jul 2025 | High Wind | 81 mph | — | — | — | — | Forecast zone |
| 9 Jul 2025 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 9 Jul 2025 | Thunderstorm Wind | 61 mph | — | — | — | — | County |
| 9 Jul 2025 | Thunderstorm Wind | 81 mph | — | — | — | — | County |
| 9 Jul 2025 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 9 Jul 2025 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 9 Jul 2025 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 16 Jun 2025 | Thunderstorm Wind | 61 mph | — | — | — | — | County |
| 7 Jun 2025 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 15 May 2025 | High Wind | 58 mph | — | — | — | — | Forecast zone |
| 28 Apr 2025 | High Wind | 62 mph | — | — | — | — | Forecast zone |
| 9 Apr 2025 | High Wind | 62 mph | — | — | — | — | Forecast zone |
| 19 Dec 2024 | High Wind | 64 mph | — | — | — | — | Forecast zone |
| 19 Nov 2024 | High Wind | 61 mph | — | — | — | — | Forecast zone |
| 14 Sep 2024 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 27 Jun 2024 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 27 Jun 2024 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 23 May 2024 | Thunderstorm Wind | 62 mph | — | — | — | — | County |
| 17 May 2024 | Thunderstorm Wind | 59 mph | — | — | — | — | County |
| 17 May 2024 | Thunderstorm Wind | 61 mph | — | — | — | — | County |
| 15 Apr 2024 | High Wind | 60 mph | — | — | — | — | Forecast zone |
| 9 Jun 2023 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 13 Oct 2022 | High Wind | 58 mph | — | — | — | — | Forecast zone |
| 12 Oct 2022 | High Wind | 62 mph | — | — | — | — | Forecast zone |
| 19 Jul 2022 | High Wind | 44 mph | — | — | — | — | Forecast zone |
| 19 Jun 2022 | Thunderstorm Wind | 63 mph | — | — | — | — | County |
| 19 Jun 2022 | Thunderstorm Wind | 62 mph | — | — | — | — | County |
| 19 Jun 2022 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 13 Jun 2022 | Thunderstorm Wind | 63 mph | — | — | — | — | County |
| 23 Apr 2022 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 22 Apr 2022 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 12 Apr 2022 | High Wind | 66 mph | — | — | — | — | Forecast zone |
| 5 Apr 2022 | High Wind | 40 mph | — | — | — | — | Forecast zone |
| 1 Feb 2022 | High Wind | 61 mph | — | — | — | — | Forecast zone |
| 13 Nov 2021 | High Wind | 64 mph | — | — | — | — | Forecast zone |
| 11 Nov 2021 | High Wind | 61 mph | — | — | — | — | Forecast zone |
| 29 Mar 2021 | High Wind | 62 mph | — | — | — | — | Forecast zone |
| 14 Jan 2021 | High Wind | 68 mph | — | — | — | — | Forecast zone |
| 23 Dec 2020 | High Wind | 60 mph | — | — | — | — | Forecast zone |
| 31 Jul 2020 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 31 Jul 2020 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 31 Jul 2020 | Thunderstorm Wind | 68 mph | — | — | — | — | County |
| 31 Jul 2020 | Thunderstorm Wind | 59 mph | — | — | — | — | County |
| 31 Jul 2020 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 31 Jul 2020 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 8 Jul 2020 | High Wind | 60 mph | — | — | — | — | Forecast zone |
| 6 Jun 2020 | Thunderstorm Wind | 81 mph | — | — | — | — | County |
| 6 Aug 2019 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 6 Aug 2019 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 17 Jul 2019 | Thunderstorm Wind | 67 mph | — | — | — | — | County |
| 17 Jul 2019 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 16 Jul 2019 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 27 Jan 2019 | High Wind | 63 mph | — | — | — | — | Forecast zone |
| 4 Jul 2018 | Thunderstorm Wind | 96 mph | — | — | — | — | County |
| 4 Jul 2018 | Thunderstorm Wind | 79 mph | — | — | — | — | County |
| 4 Jul 2018 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 4 Jul 2018 | Thunderstorm Wind | 90 mph | — | — | — | — | County |
| 4 Jul 2018 | Thunderstorm Wind | 90 mph | — | — | — | — | County |
| 5 Jun 2018 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 5 Jun 2018 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 5 Jun 2018 | Thunderstorm Wind | 100 mph | — | — | — | — | County |
| 5 Jun 2018 | Thunderstorm Wind | 97 mph | — | — | — | — | County |
| 17 May 2018 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 17 May 2018 | Thunderstorm Wind | 72 mph | — | — | — | — | County |
| 17 May 2018 | Thunderstorm Wind | 59 mph | — | — | — | — | County |
| 17 May 2018 | Thunderstorm Wind | 59 mph | — | — | — | — | County |
| 20 Jul 2017 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 19 Jul 2017 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 19 Jul 2017 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 19 Jul 2017 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 18 Jul 2017 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 13 Jun 2017 | Thunderstorm Wind | 59 mph | — | — | — | — | County |
| 7 Mar 2017 | High Wind | 60 mph | — | — | — | — | Forecast zone |
| 15 Aug 2016 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 10 Aug 2016 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 9 Aug 2016 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 9 Aug 2016 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 9 Aug 2016 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 30 Jul 2016 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 30 Jul 2016 | Thunderstorm Wind | 68 mph | — | — | — | — | County |
| 30 Jul 2016 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 16 Jul 2016 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 16 Jul 2016 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 16 Jul 2016 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 16 Jul 2016 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 11 Jul 2016 | Thunderstorm Wind | 66 mph | — | — | — | — | County |
| 10 Jul 2016 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 10 Jul 2016 | Thunderstorm Wind | 59 mph | — | — | — | — | County |
| 6 Jul 2016 | High Wind | 59 mph | — | — | — | — | Forecast zone |
| 30 May 2016 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 7 Feb 2016 | High Wind | 58 mph | — | — | — | — | Forecast zone |
| 18 Nov 2015 | High Wind | 61 mph | — | — | — | — | Forecast zone |
| 12 Oct 2015 | High Wind | 59 mph | — | — | — | — | Forecast zone |
| 22 Jun 2015 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 22 Jun 2015 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 22 Jun 2015 | Thunderstorm Wind | 72 mph | — | — | — | — | County |
| 20 Aug 2014 | Thunderstorm Wind | 59 mph | — | — | — | — | County |
| 24 Jul 2014 | High Wind | 63 mph | — | — | — | — | Forecast zone |
| 29 Nov 2002 | High Wind | 54 mph | — | — | — | — | Forecast zone |
| 11 Feb 2002 | High Wind | 62 mph | — | — | — | — | Forecast zone |
| 30 Jul 2001 | Thunderstorm Wind | 67 mph | — | — | — | — | County |
| 30 Jul 2001 | Thunderstorm Wind | 81 mph | — | — | — | — | County |
| 20 Jul 2001 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 9 Jun 2001 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 28 Dec 2000 | High Wind | 55 mph | — | — | — | — | Forecast zone |
| 5 Aug 2000 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 15 Jul 2000 | Thunderstorm Wind | 82 mph | — | — | — | — | County |
| 5 Apr 2000 | High Wind | 64 mph | — | — | — | — | Forecast zone |
| 10 Jan 2000 | High Wind | 58 mph | — | — | — | — | Forecast zone |
| 1 Nov 1999 | High Wind | 56 mph | — | — | — | — | Forecast zone |
| 12 Aug 1999 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 8 Jun 1999 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 6 May 1999 | High Wind | 59 mph | — | — | — | — | Forecast zone |
| 26 Mar 1999 | Strong Wind | — | — | — | — | — | Forecast zone |
| 26 Aug 1998 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 26 Aug 1998 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 26 Jun 1998 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 2 Nov 1997 | High Wind | 58 mph | — | — | — | — | Forecast zone |
| 11 Oct 1997 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 30 Jun 1997 | Thunderstorm Wind | 69 mph | — | — | — | — | County |
| 4 May 1997 | Thunderstorm Wind | 62 mph | — | — | — | — | County |
| 29 Oct 1996 | High Wind | 67 mph | — | — | — | — | Forecast zone |
| 19 Aug 1996 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 19 Aug 1996 | Thunderstorm Wind | 69 mph | — | — | — | — | County |
| 3 Aug 1996 | Thunderstorm Wind | 62 mph | — | — | — | — | County |
| 3 Aug 1996 | Thunderstorm Wind | 90 mph | — | — | — | — | County |
| 3 Aug 1996 | Thunderstorm Wind | 81 mph | — | — | — | — | County |
| 3 Aug 1996 | Thunderstorm Wind | 90 mph | — | — | — | — | County |
| 2 Aug 1996 | High Wind | 58 mph | — | — | — | — | Forecast zone |
| 14 Jun 1996 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 25 Apr 1996 | High Wind | 60 mph | — | — | — | — | Forecast zone |
| 24 Apr 1996 | High Wind | 58 mph | — | — | — | — | Forecast zone |
| 10 Feb 1996 | High Wind | 61 mph | — | — | — | — | Forecast zone |
| 27 Jul 1995 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 3 Jul 1995 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 18 Jul 1994 | Thunderstorm Wind | 0 mph | $50K | — | — | — | County |
| 10 Jul 1994 | Thunderstorm Wind | 67 mph | — | — | — | — | County |
| 15 Jun 1994 | Thunderstorm Wind | 0 mph | $500 | — | — | — | County |
| 1 Aug 1992 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 14 Jul 1992 | Thunderstorm Wind | 69 mph | — | — | — | — | County |
| 14 May 1991 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 14 May 1991 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 26 Aug 1990 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 18 Jun 1990 | Thunderstorm Wind | 75 mph | — | — | — | — | County |
| 11 Jun 1990 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 28 Jul 1989 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 28 Jun 1989 | Thunderstorm Wind | 63 mph | — | — | — | — | County |
| 12 Jun 1988 | Thunderstorm Wind | 69 mph | — | — | — | — | County |
| 3 Aug 1987 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 22 Jul 1987 | Thunderstorm Wind | 69 mph | — | — | — | — | County |
| 24 Sep 1986 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 19 Aug 1986 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 16 Jul 1986 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 16 Jul 1986 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 29 Apr 1986 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 22 Aug 1985 | Thunderstorm Wind | 63 mph | — | — | — | — | County |
| 22 Aug 1985 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 21 Aug 1985 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 21 Aug 1985 | Thunderstorm Wind | 72 mph | — | — | — | — | County |
| 24 Jun 1985 | Thunderstorm Wind | 59 mph | — | — | — | — | County |
| 11 May 1985 | Thunderstorm Wind | 69 mph | — | — | — | — | County |
| 19 Apr 1985 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 19 Apr 1985 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 19 Apr 1985 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 27 Aug 1983 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 27 Aug 1983 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 27 Aug 1983 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 23 Jul 1982 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 3 Aug 1981 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 28 Jun 1981 | Thunderstorm Wind | 63 mph | — | — | — | — | County |
| 28 Jun 1981 | Thunderstorm Wind | 63 mph | — | — | — | — | County |
| 3 Jul 1980 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 3 Jul 1980 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 3 Jul 1980 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 3 Jul 1980 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 3 Jul 1980 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 10 Aug 1975 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 24 Jul 1960 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
Questions and answers
How many wind events has Walworth County had?
258 events in the NCEI Storm Events record between 1950 and 2026. Reporting of damaging wind became far more complete after 1996, so early decades undercount.
When was the last recorded wind event in Walworth County?
27 Jun 2026 (Thunderstorm Wind, 59 mph). Records reach NCEI about 120 days after the month ends.
What was the most damaging wind event recorded in Walworth County?
The thunderstorm wind of 18 Jul 1994, with property damage estimated by NCEI at $50K.
How does Walworth County compare with South Dakota for wind?
36.5 events per 100 square miles against 23.8 statewide; the county holds 258 of the state's 18,009 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 Wind hub and the county page.