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Wind in Sac County, Iowa
139 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 139 wind events in Sac County, Iowa, between 1950 and 2026, spread over 41 years.
June is the busiest month, with 28 of the recorded events. The last 20 years account for 61 events against 67 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 0.7% of the 20,854 wind events recorded in Iowa; its 24.2 per 100 square miles compares with 37.3 statewide.
99 wind reports with a measured or estimated speed reached the 58 mph severe threshold, and 18 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 Iowa
| Measure | Sac County | Iowa | US |
|---|---|---|---|
| Wind events since 1950 | 139 | 20,854 | 701,953 |
| Per 100 square miles | 24.2 | 37.3 | 19.9 |
| Per 10,000 residents | 142.5 | 65.3 | 21.1 |
| Deaths recorded | 0 | 25 | 2,166 |
| Busiest month | June | June | June |
By year
Seasonality
5Feb
4Mar
9Apr
15May
21Jun
28Jul
24Aug
19Sep
4Oct
5Nov
4Dec
1
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
All 139 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 |
|---|---|---|---|---|---|---|---|
| 9 Aug 2025 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 19 Mar 2025 | High Wind | 60 mph | — | — | — | — | Forecast zone |
| 14 Mar 2025 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 4 Mar 2025 | High Wind | 63 mph | — | — | — | — | Forecast zone |
| 30 Jul 2024 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 15 Jul 2024 | Thunderstorm Wind | 85 mph | — | — | — | — | County |
| 16 Jun 2024 | Thunderstorm Wind | 69 mph | — | — | — | — | County |
| 3 Aug 2022 | Thunderstorm Wind | 66 mph | — | — | — | — | County |
| 23 Jul 2022 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 23 Jul 2022 | Thunderstorm Wind | 63 mph | — | — | — | — | County |
| 23 Jul 2022 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 23 Apr 2022 | High Wind | 58 mph | — | — | — | — | Forecast zone |
| 14 Apr 2022 | High Wind | 41 mph | — | — | — | — | Forecast zone |
| 15 Dec 2021 | High Wind | 64 mph | — | — | — | — | Forecast zone |
| 16 Jun 2021 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 16 Jun 2021 | Thunderstorm Wind | 62 mph | — | — | — | — | County |
| 16 Jun 2021 | Thunderstorm Wind | 62 mph | — | — | — | — | County |
| 16 Jun 2021 | Thunderstorm Wind | 69 mph | — | — | — | — | County |
| 10 Aug 2020 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 18 Jun 2020 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 18 Jun 2020 | Thunderstorm Wind | 63 mph | — | — | — | — | County |
| 11 Apr 2019 | High Wind | 59 mph | — | — | — | — | Forecast zone |
| 20 Sep 2018 | Thunderstorm Wind | 64 mph | $20K | — | — | — | County |
| 13 Jul 2018 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 20 Jul 2017 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 16 May 2017 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 16 May 2017 | Thunderstorm Wind | 70 mph | $2K | — | — | — | County |
| 1 Aug 2016 | Thunderstorm Wind | 64 mph | $10K | — | — | — | County |
| 1 Aug 2016 | Thunderstorm Wind | 64 mph | $30K | — | — | — | County |
| 11 Jul 2016 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 5 Jul 2016 | Thunderstorm Wind | 70 mph | $25K | — | — | — | County |
| 19 Feb 2016 | High Wind | 40 mph | — | — | — | — | Forecast zone |
| 11 Nov 2015 | High Wind | 40 mph | — | — | — | — | Forecast zone |
| 6 Jun 2015 | Thunderstorm Wind | 75 mph | $20K | — | — | — | County |
| 31 Aug 2014 | Thunderstorm Wind | 60 mph | — | $2K | — | — | County |
| 30 Jun 2014 | Thunderstorm Wind | 64 mph | $5K | — | — | — | County |
| 11 May 2014 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 26 Jan 2014 | High Wind | 60 mph | $25K | — | — | — | Forecast zone |
| 16 Jan 2014 | High Wind | 40 mph | $5K | — | — | — | Forecast zone |
| 23 May 2012 | Thunderstorm Wind | 62 mph | $5K | — | — | — | County |
| 23 May 2012 | Thunderstorm Wind | 79 mph | $250K | — | — | — | County |
| 23 May 2012 | Thunderstorm Wind | 90 mph | $200K | — | — | — | County |
| 19 May 2012 | Thunderstorm Wind | 60 mph | $20K | — | — | — | County |
| 7 Oct 2011 | High Wind | 60 mph | $20K | — | — | — | Forecast zone |
| 1 Jul 2011 | Thunderstorm Wind | 60 mph | $10K | — | — | — | County |
| 26 Jun 2011 | High Wind | 66 mph | $100K | — | — | — | Forecast zone |
| 26 Jun 2011 | Thunderstorm Wind | 60 mph | $2K | — | — | — | County |
| 8 Aug 2010 | Thunderstorm Wind | 70 mph | $300K | $15K | — | — | County |
| 8 Aug 2010 | Thunderstorm Wind | 64 mph | $2K | — | — | — | County |
| 10 Jun 2010 | High Wind | 60 mph | $50K | — | — | — | Forecast zone |
| 9 Aug 2009 | Thunderstorm Wind | 70 mph | $5K | $50K | — | — | County |
| 17 Jun 2009 | Thunderstorm Wind | 60 mph | $2K | — | — | — | County |
| 9 Feb 2009 | High Wind | 59 mph | $5K | — | — | — | Forecast zone |
| 26 Oct 2008 | High Wind | 60 mph | $25K | $25K | — | — | Forecast zone |
| 29 May 2008 | Thunderstorm Wind | 58 mph | $1K | — | — | — | County |
| 29 May 2008 | Thunderstorm Wind | 60 mph | $10K | — | — | — | County |
| 29 May 2008 | Thunderstorm Wind | 60 mph | $2K | — | — | — | County |
| 28 Aug 2007 | Thunderstorm Wind | 60 mph | $5K | — | — | — | County |
| 22 Aug 2007 | Thunderstorm Wind | 60 mph | $5K | — | — | — | County |
| 18 Jul 2007 | Thunderstorm Wind | 60 mph | $10K | $5K | — | — | County |
| 3 Jul 2007 | Thunderstorm Wind | 60 mph | $1K | — | — | — | County |
| 10 Aug 2006 | Thunderstorm Wind | 58 mph | $2K | — | — | — | County |
| 15 Apr 2006 | High Wind | 40 mph | $50K | — | — | — | Forecast zone |
| 30 Mar 2006 | Thunderstorm Wind | 98 mph | $100K | — | — | — | County |
| 30 Mar 2006 | Thunderstorm Wind | 75 mph | $20K | — | — | — | County |
| 24 Jan 2006 | High Wind | 43 mph | $10K | — | — | — | Forecast zone |
| 12 Nov 2005 | High Wind | 40 mph | $50K | — | — | — | Forecast zone |
| 22 Jan 2005 | High Wind | 40 mph | $10K | — | — | — | Forecast zone |
| 30 Oct 2004 | High Wind | 46 mph | $10K | — | — | — | Forecast zone |
| 24 May 2004 | Thunderstorm Wind | 70 mph | $80K | — | — | 1 | County |
| 21 May 2004 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 27 Apr 2004 | High Wind | 40 mph | $75K | — | — | — | Forecast zone |
| 18 Apr 2004 | High Wind | 40 mph | $80K | — | — | — | Forecast zone |
| 20 Mar 2004 | High Wind | 40 mph | $50K | — | — | — | Forecast zone |
| 12 Nov 2003 | High Wind | 58 mph | $50K | — | — | — | Forecast zone |
| 24 Jun 2003 | Thunderstorm Wind | 85 mph | $150K | $10K | — | — | County |
| 24 Jun 2003 | Thunderstorm Wind | 90 mph | $250K | $25K | — | — | County |
| 30 May 2003 | High Wind | 40 mph | $25K | — | — | — | Forecast zone |
| 11 Feb 2003 | High Wind | 58 mph | $5K | — | — | — | Forecast zone |
| 28 Jul 2002 | Thunderstorm Wind | 60 mph | $5K | — | — | — | County |
| 10 Jul 2002 | Thunderstorm Wind | 60 mph | $5K | — | — | — | County |
| 5 May 2002 | High Wind | 60 mph | $5K | — | — | — | Forecast zone |
| 5 May 2002 | Thunderstorm Wind | 60 mph | $5K | — | — | — | County |
| 16 Apr 2002 | Thunderstorm Wind | 70 mph | $15K | — | — | — | County |
| 16 Apr 2002 | Thunderstorm Wind | 75 mph | $25K | — | — | — | County |
| 9 Mar 2002 | High Wind | — | $50K | — | — | — | Forecast zone |
| 2 Aug 2001 | Thunderstorm Wind | 60 mph | $5K | $2K | — | — | County |
| 2 Aug 2001 | Thunderstorm Wind | 60 mph | $5K | $2K | — | — | County |
| 8 Jul 2001 | Thunderstorm Wind | 70 mph | $15K | $2K | — | — | County |
| 13 Jun 2001 | Thunderstorm Wind | 60 mph | $5K | — | — | — | County |
| 13 Jun 2001 | Thunderstorm Wind | 81 mph | $25K | $2K | — | — | County |
| 13 Jun 2001 | Thunderstorm Wind | 60 mph | $5K | — | — | — | County |
| 13 Jun 2001 | Thunderstorm Wind | 91 mph | $50K | $5K | — | — | County |
| 13 Jun 2001 | Thunderstorm Wind | 64 mph | $5K | — | — | — | County |
| 7 Apr 2001 | High Wind | 76 mph | $100K | — | — | — | Forecast zone |
| 17 Mar 1999 | High Wind | 58 mph | $30K | — | — | — | Forecast zone |
| 10 Nov 1998 | High Wind | 70 mph | $300K | $5K | — | — | Forecast zone |
| 14 Aug 1998 | Thunderstorm Wind | 70 mph | $3K | $25K | — | — | County |
| 24 Jun 1998 | Thunderstorm Wind | 70 mph | $15K | $2K | — | — | County |
| 24 Jun 1998 | Thunderstorm Wind | 60 mph | $1K | — | — | — | County |
| 23 Jun 1998 | Thunderstorm Wind | 66 mph | $30K | $3K | — | — | County |
| 23 Jun 1998 | Thunderstorm Wind | 79 mph | $10K | $15K | — | — | County |
| 23 Jun 1998 | Thunderstorm Wind | 60 mph | $25K | — | — | — | County |
| 15 May 1998 | Thunderstorm Wind | 64 mph | $40K | $5K | — | — | County |
| 12 Apr 1998 | Thunderstorm Wind | 75 mph | $100K | — | — | — | County |
| 12 Apr 1998 | High Wind | — | $50K | — | — | — | Forecast zone |
| 13 Oct 1997 | High Wind | 60 mph | $16K | — | — | — | Forecast zone |
| 27 Jul 1997 | Thunderstorm Wind | 58 mph | $5K | — | — | — | County |
| 7 Jul 1997 | Thunderstorm Wind | 75 mph | $50K | $20K | — | — | County |
| 7 Jul 1997 | Thunderstorm Wind | 75 mph | $70K | — | — | — | County |
| 5 May 1997 | High Wind | 60 mph | — | — | — | — | Forecast zone |
| 6 Apr 1997 | High Wind | 63 mph | — | — | — | — | Forecast zone |
| 29 Oct 1996 | High Wind | 66 mph | — | — | — | — | Forecast zone |
| 4 Aug 1996 | Thunderstorm Wind | 70 mph | $35K | — | — | — | County |
| 25 Apr 1996 | High Wind | 60 mph | — | — | — | — | Forecast zone |
| 24 Mar 1996 | High Wind | 62 mph | — | — | — | — | Forecast zone |
| 10 Feb 1996 | High Wind | 64 mph | — | — | — | — | Forecast zone |
| 17 Jan 1996 | High Wind | 63 mph | — | — | — | — | Forecast zone |
| 5 Jun 1994 | Thunderstorm Wind | 58 mph | $50K | $500 | — | — | County |
| 18 Aug 1993 | Thunderstorm Wind | 58 mph | $5K | $500 | — | — | County |
| 7 Jul 1992 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 7 Jul 1992 | Thunderstorm Wind | 90 mph | — | — | — | — | County |
| 28 May 1991 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 26 Apr 1991 | Thunderstorm Wind | 81 mph | — | — | — | — | County |
| 12 Apr 1991 | Thunderstorm Wind | 62 mph | — | — | — | — | County |
| 31 May 1988 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 14 Sep 1987 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 16 Aug 1987 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 28 Jul 1986 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 28 Jul 1986 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 22 Jul 1983 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 28 May 1983 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 20 Sep 1980 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 11 Aug 1975 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 12 Sep 1972 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 23 May 1971 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 14 Jul 1970 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 25 Jun 1970 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 23 Jun 1968 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
Questions and answers
How many wind events has Sac County had?
139 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 Sac County?
9 Aug 2025 (Thunderstorm Wind, 58 mph). Records reach NCEI about 120 days after the month ends.
What was the most damaging wind event recorded in Sac County?
The thunderstorm wind of 8 Aug 2010, with property damage estimated by NCEI at $300K and crop damage at $15K.
How does Sac County compare with Iowa for wind?
24.2 events per 100 square miles against 37.3 statewide; the county holds 139 of the state's 20,854 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.