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Wind in O'Brien County, Iowa

211 damaging wind events in the NCEI Storm Events record, 1950 to 2026. Event types counted: Thunderstorm Wind, High Wind, Strong Wind.

211 events · 0 deaths recorded · peak month July · county share of state 1.0%

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Wind event locations in and around O'Brien County. Dots: Wind event locations in the kept record. Boundaries: US Census Bureau.

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.

O'Brien County, Iowa, has 211 wind events in the NCEI record since 1950, with at least one in 54 different years.

July is the busiest month, with 43 of the recorded events. The last 20 years account for 92 events against 77 in the 20 years before, a change that reflects reporting practice as much as weather.

The county holds 1% of the 20,854 wind events recorded in Iowa; its 36.8 per 100 square miles compares with 37.3 statewide.

133 wind reports with a measured or estimated speed reached the 58 mph severe threshold, and 27 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

MeasureO'Brien CountyIowaUS
Wind events since 195021120,854701,953
Per 100 square miles36.837.319.9
Per 10,000 residents150.665.321.1
Deaths recorded0252,166
Busiest monthJulyJuneJune

By year

195019882026
Wind events recorded in O'Brien County per year, 1950 to 2026 (2026 is partial).

Seasonality

Jan
4
Feb
6
Mar
6
Apr
16
May
29
Jun
40
Jul
43
Aug
38
Sep
13
Oct
5
Nov
2
Dec
9
Wind events in O'Brien County by month of occurrence, all years.

Magnitude distribution

under 58 mph78
58–73 mph106
74–95 mph27
96 mph and over0
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 174 events kept for this page are the 120 most recent plus the 80 with the most damage, deaths or injuries out of 211. Magnitude is hail size, tornado rating or wind speed as recorded.

DateEvent typeMagnitudeProperty damageCrop damageDeathsInjuriesGeography
15 Mar 2026High Wind40 mph————Forecast zone
18 Feb 2026High Wind41 mph————Forecast zone
16 Jan 2026Strong Wind49 mph————Forecast zone
18 Dec 2025Strong Wind54 mph————Forecast zone
10 Dec 2025High Wind64 mph————Forecast zone
25 Nov 2025Strong Wind54 mph————Forecast zone
28 Jul 2025Thunderstorm Wind90 mph————County
28 Jul 2025Thunderstorm Wind85 mph————County
28 Jul 2025Thunderstorm Wind90 mph————County
29 Jun 2025Thunderstorm Wind64 mph————County
19 May 2025Strong Wind48 mph————Forecast zone
19 May 2025High Wind70 mph————Forecast zone
4 Mar 2025Strong Wind52 mph————Forecast zone
28 Feb 2025High Wind59 mph————Forecast zone
19 Dec 2024Strong Wind33 mph————Forecast zone
4 Dec 2024High Wind58 mph————Forecast zone
20 Nov 2024Strong Wind46 mph————Forecast zone
21 Jun 2024Thunderstorm Wind81 mph————County
15 Jun 2024Thunderstorm Wind75 mph————County
6 Jun 2024Strong Wind53 mph————Forecast zone
6 May 2024Thunderstorm Wind75 mph————County
6 Apr 2024High Wind58 mph————Forecast zone
11 Aug 2023Thunderstorm Wind81 mph————County
10 Jul 2023Thunderstorm Wind60 mph————County
30 Apr 2023Strong Wind55 mph————Forecast zone
15 Feb 2023Strong Wind49 mph————Forecast zone
27 Aug 2022Thunderstorm Wind85 mph—$5K——County
27 Aug 2022Thunderstorm Wind85 mph————County
5 Jul 2022Thunderstorm Wind79 mph—$230K——County
5 Jul 2022Thunderstorm Wind90 mph$20K———County
5 Jul 2022Thunderstorm Wind90 mph————County
5 Jul 2022Thunderstorm Wind60 mph————County
30 May 2022Thunderstorm Wind61 mph————County
12 May 2022Thunderstorm Wind75 mph—$2K——County
12 May 2022Thunderstorm Wind69 mph————County
23 Apr 2022High Wind62 mph————Forecast zone
14 Apr 2022High Wind44 mph————Forecast zone
25 Mar 2022Strong Wind49 mph————Forecast zone
15 Dec 2021High Wind62 mph————Forecast zone
15 Dec 2021Thunderstorm Wind75 mph$30K———County
15 Dec 2021Thunderstorm Wind70 mph————County
17 Sep 2021Thunderstorm Wind81 mph$350K———County
17 Sep 2021Thunderstorm Wind70 mph—$20K——County
17 Sep 2021Thunderstorm Wind64 mph————County
21 Jun 2020Thunderstorm Wind62 mph————County
17 Jul 2019Thunderstorm Wind60 mph————County
20 Sep 2018Thunderstorm Wind70 mph————County
5 Aug 2018Thunderstorm Wind60 mph————County
5 Aug 2018Thunderstorm Wind60 mph————County
13 Jun 2017Thunderstorm Wind67 mph————County
16 May 2017Thunderstorm Wind75 mph————County
25 Dec 2016High Wind59 mph————Forecast zone
13 Jul 2016Thunderstorm Wind62 mph————County
25 May 2016Thunderstorm Wind59 mph————County
19 Feb 2016High Wind41 mph————Forecast zone
22 Jun 2015Thunderstorm Wind96 mph$1.0M———County
10 May 2015Thunderstorm Wind60 mph————County
19 Sep 2014Thunderstorm Wind60 mph————County
19 Sep 2014Thunderstorm Wind60 mph————County
18 Aug 2014Thunderstorm Wind60 mph————County
26 Jan 2014High Wind58 mph————Forecast zone
16 Jan 2014High Wind58 mph————Forecast zone
31 Aug 2013Thunderstorm Wind60 mph————County
15 Jun 2013Thunderstorm Wind64 mph————County
4 Sep 2012Thunderstorm Wind70 mph————County
4 May 2012Thunderstorm Wind60 mph————County
4 May 2012Thunderstorm Wind60 mph————County
4 May 2012Thunderstorm Wind60 mph————County
1 May 2012Thunderstorm Wind74 mph$10K———County
1 May 2012Thunderstorm Wind81 mph$5K———County
1 May 2012Thunderstorm Wind60 mph————County
1 May 2012Thunderstorm Wind75 mph————County
2 Sep 2011Thunderstorm Wind60 mph————County
23 Aug 2011Thunderstorm Wind70 mph$100K———County
23 Aug 2011Thunderstorm Wind70 mph$10K———County
11 Jul 2011Thunderstorm Wind70 mph$15K———County
20 Jun 2011Thunderstorm Wind70 mph————County
20 Jun 2011Thunderstorm Wind60 mph————County
20 Jun 2011Thunderstorm Wind60 mph$5K———County
20 Jun 2011Thunderstorm Wind60 mph$5K———County
26 Oct 2010High Wind60 mph$4K——1Forecast zone
22 Sep 2010Thunderstorm Wind60 mph————County
22 Jul 2010Thunderstorm Wind70 mph$5K———County
2 Aug 2009Thunderstorm Wind60 mph————County
2 Aug 2009Thunderstorm Wind64 mph————County
26 Oct 2008High Wind40 mph$20K———Forecast zone
11 Jun 2008Thunderstorm Wind66 mph————County
19 May 2008Thunderstorm Wind79 mph$50K———County
19 May 2008Thunderstorm Wind63 mph————County
6 May 2008Thunderstorm Wind59 mph————County
26 Jul 2007Thunderstorm Wind70 mph$10K———County
31 Mar 2007Thunderstorm Wind79 mph————County
9 Aug 2005Thunderstorm Wind60 mph————County
25 Jul 2005Thunderstorm Wind60 mph————County
10 Mar 2005High Wind58 mph$10K———Forecast zone
22 Jan 2005High Wind40 mph————Forecast zone
12 Dec 2004High Wind40 mph————Forecast zone
31 Jul 2004Thunderstorm Wind70 mph————County
21 Jul 2004Thunderstorm Wind70 mph————County
13 Jul 2004Thunderstorm Wind70 mph————County
13 Jul 2004Thunderstorm Wind60 mph————County
13 Jul 2004Thunderstorm Wind79 mph————County
8 Jun 2004Thunderstorm Wind70 mph$1K———County
9 May 2004Thunderstorm Wind60 mph————County
18 Apr 2004Thunderstorm Wind60 mph————County
27 Mar 2004High Wind60 mph$2K———Forecast zone
25 Aug 2003Thunderstorm Wind60 mph————County
3 Jul 2003Thunderstorm Wind70 mph$3K———County
11 Feb 2003High Wind58 mph————Forecast zone
17 Aug 2002Thunderstorm Wind60 mph————County
16 Aug 2002High Wind70 mph————Forecast zone
16 Aug 2002Thunderstorm Wind70 mph————County
16 Aug 2002Thunderstorm Wind70 mph————County
10 Jun 2002Thunderstorm Wind66 mph————County
10 Jun 2002Thunderstorm Wind70 mph$10K———County
10 Jun 2002Thunderstorm Wind70 mph————County
16 Apr 2002Thunderstorm Wind66 mph$50K———County
16 Apr 2002Thunderstorm Wind60 mph————County
16 Apr 2002Thunderstorm Wind66 mph————County
13 Jun 2001Thunderstorm Wind70 mph————County
13 Jun 2001Thunderstorm Wind70 mph$150K———County
11 Apr 2001Thunderstorm Wind60 mph$10K———County
7 Apr 2001High Wind67 mph$100K———Forecast zone
7 Apr 2001Thunderstorm Wind60 mph$5K———County
9 Jul 2000Thunderstorm Wind60 mph$20K———County
7 May 2000Thunderstorm Wind60 mph$10K———County
5 Apr 2000High Wind68 mph$12K———Forecast zone
5 Jun 1999Thunderstorm Wind64 mph$5K———County
14 Jul 1998Thunderstorm Wind60 mph$10K———County
18 May 1998Thunderstorm Wind60 mph$10K———County
12 Apr 1998Thunderstorm Wind60 mph$5K———County
16 Oct 1996Thunderstorm Wind71 mph$300K———County
25 Jul 1995Thunderstorm Wind0 mph$5K———County
7 Aug 1994Thunderstorm Wind58 mph$5K$500——County
20 Jun 1994Thunderstorm Wind58 mph$50K$5K——County
20 Jun 1994Thunderstorm Wind58 mph$5K$50——County
20 Jun 1994Thunderstorm Wind58 mph$5K$50——County
12 Jun 1994Thunderstorm Wind58 mph$5K$500——County
27 Aug 1993Thunderstorm Wind75 mph$500K$5K——County
26 Aug 1993Thunderstorm Wind58 mph$50K$5K——County
26 Aug 1993Thunderstorm Wind58 mph$50K$5K——County
7 Jun 1984Thunderstorm Wind0 mph————County
5 Sep 1983Thunderstorm Wind0 mph————County
27 Aug 1983Thunderstorm Wind0 mph————County
1 Jul 1983Thunderstorm Wind0 mph————County
1 Jul 1983Thunderstorm Wind0 mph————County
1 Jul 1983Thunderstorm Wind0 mph————County
13 Jun 1983Thunderstorm Wind0 mph————County
13 Jun 1983Thunderstorm Wind0 mph————County
28 May 1983Thunderstorm Wind0 mph————County
31 Aug 1982Thunderstorm Wind75 mph————County
31 Aug 1982Thunderstorm Wind78 mph————County
21 Jul 1982Thunderstorm Wind0 mph————County
21 Jul 1982Thunderstorm Wind70 mph————County
21 Jul 1982Thunderstorm Wind0 mph————County
20 Sep 1980Thunderstorm Wind69 mph————County
26 Aug 1980Thunderstorm Wind69 mph————County
25 Aug 1980Thunderstorm Wind70 mph————County
6 Jun 1980Thunderstorm Wind60 mph————County
10 May 1979Thunderstorm Wind0 mph————County
5 Jul 1978Thunderstorm Wind0 mph————County
21 Jun 1975Thunderstorm Wind0 mph————County
18 Aug 1974Thunderstorm Wind0 mph————County
18 Aug 1974Thunderstorm Wind0 mph————County
9 Oct 1973Thunderstorm Wind0 mph————County
22 Aug 1973Thunderstorm Wind0 mph————County
1 Jul 1973Thunderstorm Wind0 mph————County
26 Jun 1973Thunderstorm Wind0 mph————County
19 Apr 1973Thunderstorm Wind0 mph————County
4 Jun 1971Thunderstorm Wind0 mph————County
11 May 1970Thunderstorm Wind0 mph————County
11 May 1970Thunderstorm Wind0 mph————County
14 Jun 1967Thunderstorm Wind0 mph————County
18 Jul 1963Thunderstorm Wind0 mph————County

Questions and answers

How many wind events has O'Brien County had?

211 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 O'Brien County?

15 Mar 2026 (High Wind, 40 mph). Records reach NCEI about 120 days after the month ends.

What was the most damaging wind event recorded in O'Brien County?

The thunderstorm wind of 22 Jun 2015, with property damage estimated by NCEI at $1.0M.

How does O'Brien County compare with Iowa for wind?

36.8 events per 100 square miles against 37.3 statewide; the county holds 211 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.