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Wind in Johnson County, Iowa
298 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 298 wind events in Johnson County, Iowa, between 1950 and 2026, spread over 54 years.
July is the busiest month, with 64 of the recorded events. The last 20 years account for 187 events against 66 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 1.4% of the 20,854 wind events recorded in Iowa; its 48.6 per 100 square miles compares with 37.3 statewide.
NCEI attributes 1 death in the county to damaging wind.
235 wind reports with a measured or estimated speed reached the 58 mph severe threshold, and 37 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 | Johnson County | Iowa | US |
|---|---|---|---|
| Wind events since 1950 | 298 | 20,854 | 701,953 |
| Per 100 square miles | 48.6 | 37.3 | 19.9 |
| Per 10,000 residents | 19.3 | 65.3 | 21.1 |
| Deaths recorded | 1 | 25 | 2,166 |
| Busiest month | July | June | June |
By year
Seasonality
0Feb
5Mar
8Apr
27May
60Jun
54Jul
64Aug
35Sep
17Oct
11Nov
7Dec
10
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 197 events kept for this page are the 120 most recent plus the 80 with the most damage, deaths or injuries out of 298. Magnitude is hail size, tornado rating or wind speed as recorded.
| Date | Event type | Magnitude | Property damage | Crop damage | Deaths | Injuries | Geography |
|---|---|---|---|---|---|---|---|
| 17 Jun 2026 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 17 Jun 2026 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 17 Jun 2026 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 17 Jun 2026 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 17 Jun 2026 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 10 Jun 2026 | Thunderstorm Wind | 63 mph | — | — | — | — | County |
| 10 Jun 2026 | Thunderstorm Wind | 62 mph | — | — | — | — | County |
| 10 Jun 2026 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 23 Apr 2026 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 23 Apr 2026 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 23 Apr 2026 | Thunderstorm Wind | 69 mph | — | — | — | — | County |
| 17 Apr 2026 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 18 Feb 2026 | High Wind | 61 mph | — | — | — | — | Forecast zone |
| 15 Aug 2025 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 15 Aug 2025 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 15 Aug 2025 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 15 Aug 2025 | Thunderstorm Wind | 69 mph | — | — | — | — | County |
| 15 Aug 2025 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 29 Jul 2025 | Thunderstorm Wind | 63 mph | — | — | — | — | County |
| 10 Jul 2025 | Thunderstorm Wind | 75 mph | — | — | — | — | County |
| 15 Jul 2024 | Thunderstorm Wind | 75 mph | — | — | — | — | County |
| 15 Jul 2024 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 15 Jul 2024 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 15 Jul 2024 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 15 Jul 2024 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 2 Jul 2024 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 2 Jul 2024 | Thunderstorm Wind | 81 mph | — | — | — | — | County |
| 2 Jul 2024 | Thunderstorm Wind | 81 mph | — | — | — | — | County |
| 2 Jul 2024 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 2 Jul 2024 | Thunderstorm Wind | 81 mph | — | — | — | — | County |
| 25 Jun 2024 | Thunderstorm Wind | 68 mph | — | — | — | — | County |
| 25 Jun 2024 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 25 Jun 2024 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 24 May 2024 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 24 May 2024 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 24 May 2024 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 24 May 2024 | Thunderstorm Wind | 68 mph | — | — | — | — | County |
| 24 May 2024 | Thunderstorm Wind | 68 mph | — | — | — | — | County |
| 24 May 2024 | Thunderstorm Wind | 75 mph | — | — | — | — | County |
| 24 May 2024 | Thunderstorm Wind | 75 mph | — | — | — | — | County |
| 21 May 2024 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 19 May 2024 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 7 May 2024 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 16 Apr 2024 | Thunderstorm Wind | 75 mph | — | — | — | — | County |
| 16 Apr 2024 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 28 Jul 2023 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 28 Jul 2023 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 12 Jul 2023 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 12 Jul 2023 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 12 Jul 2023 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 12 Jul 2023 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 12 Jul 2023 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 7 May 2023 | Thunderstorm Wind | 72 mph | — | — | — | — | County |
| 7 May 2023 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 7 May 2023 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 7 May 2023 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 7 May 2023 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 7 May 2023 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 7 May 2023 | Thunderstorm Wind | 74 mph | — | — | — | — | County |
| 7 May 2023 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 7 May 2023 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 7 May 2023 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 7 May 2023 | Thunderstorm Wind | 63 mph | — | — | — | — | County |
| 7 May 2023 | Thunderstorm Wind | 75 mph | — | — | — | — | County |
| 15 Dec 2021 | High Wind | 70 mph | — | — | — | — | Forecast zone |
| 15 Dec 2021 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 15 Dec 2021 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 15 Dec 2021 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 15 Dec 2021 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 15 Dec 2021 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 15 Dec 2021 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 15 Dec 2021 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 10 Aug 2020 | Thunderstorm Wind | 81 mph | — | — | — | — | County |
| 26 May 2020 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 26 May 2020 | Thunderstorm Wind | 75 mph | — | — | — | — | County |
| 26 May 2020 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 18 Aug 2019 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 16 May 2019 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 16 May 2019 | Thunderstorm Wind | 62 mph | — | — | — | — | County |
| 16 May 2019 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 16 May 2019 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 16 May 2019 | Thunderstorm Wind | 69 mph | — | — | — | — | County |
| 16 May 2019 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 28 Aug 2018 | Thunderstorm Wind | 83 mph | — | — | — | — | County |
| 28 Aug 2018 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 28 Aug 2018 | Thunderstorm Wind | 75 mph | — | — | — | — | County |
| 28 Aug 2018 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 28 Aug 2018 | Thunderstorm Wind | 69 mph | — | — | — | — | County |
| 28 Aug 2018 | Thunderstorm Wind | 82 mph | — | — | — | — | County |
| 2 May 2018 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 21 Jul 2017 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 17 May 2017 | Thunderstorm Wind | 69 mph | $10K | — | — | — | County |
| 17 May 2017 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 17 May 2017 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 6 Mar 2017 | Thunderstorm Wind | 75 mph | — | — | — | — | County |
| 6 Mar 2017 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 6 Mar 2017 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 6 Mar 2017 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 6 Mar 2017 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 6 Mar 2017 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 6 Jul 2016 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 6 Jul 2016 | Thunderstorm Wind | 59 mph | — | — | — | — | County |
| 19 Feb 2016 | High Wind | 63 mph | — | — | — | — | Forecast zone |
| 11 Nov 2015 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 11 Nov 2015 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 11 Nov 2015 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 11 Nov 2015 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 22 Aug 2014 | Thunderstorm Wind | 75 mph | $25K | — | — | — | County |
| 12 Jul 2014 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 30 Jun 2014 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 30 Jun 2014 | Thunderstorm Wind | 69 mph | — | — | — | — | County |
| 30 Jun 2014 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 30 Jun 2014 | Thunderstorm Wind | 81 mph | — | — | — | 1 | County |
| 16 Jun 2014 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 16 Jun 2014 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 16 Jun 2014 | Thunderstorm Wind | 69 mph | — | — | — | — | County |
| 16 Jun 2014 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 27 Apr 2014 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 27 Apr 2014 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 27 Apr 2014 | Thunderstorm Wind | 81 mph | — | — | — | — | County |
| 20 Feb 2014 | Thunderstorm Wind | 64 mph | $10K | — | — | — | County |
| 19 Sep 2013 | Thunderstorm Wind | 90 mph | $140K | — | — | — | County |
| 19 Sep 2013 | Thunderstorm Wind | 75 mph | $10K | — | — | — | County |
| 19 Sep 2013 | Thunderstorm Wind | 70 mph | $1K | — | — | — | County |
| 19 Jul 2013 | Thunderstorm Wind | 60 mph | $1K | — | — | — | County |
| 5 Sep 2012 | Thunderstorm Wind | 64 mph | $10K | — | — | — | County |
| 25 Jul 2012 | Thunderstorm Wind | 52 mph | $200 | — | — | — | County |
| 27 Jul 2011 | Thunderstorm Wind | 90 mph | $125K | — | — | — | County |
| 24 Jul 2011 | Thunderstorm Wind | 81 mph | $50K | — | — | — | County |
| 13 Jun 2011 | High Wind | 64 mph | $100K | — | — | — | Forecast zone |
| 13 Jun 2011 | High Wind | 60 mph | $25K | — | — | — | Forecast zone |
| 29 May 2011 | Thunderstorm Wind | 75 mph | $10K | — | 1 | — | County |
| 18 Jun 2010 | Thunderstorm Wind | 60 mph | $100K | — | — | — | County |
| 18 Jun 2010 | Thunderstorm Wind | 64 mph | $25K | — | — | — | County |
| 18 Jun 2010 | Thunderstorm Wind | 70 mph | $25K | — | — | — | County |
| 18 Jun 2010 | Thunderstorm Wind | 64 mph | $5K | — | — | — | County |
| 21 Jul 2008 | Thunderstorm Wind | 70 mph | $50K | — | — | — | County |
| 21 Jul 2008 | Thunderstorm Wind | 75 mph | $5K | — | — | — | County |
| 7 Jul 2008 | Thunderstorm Wind | 60 mph | $5K | — | — | — | County |
| 25 May 2008 | Thunderstorm Wind | 64 mph | $50K | — | — | — | County |
| 25 May 2008 | Thunderstorm Wind | 69 mph | $10K | — | — | — | County |
| 25 May 2008 | Thunderstorm Wind | 70 mph | $5K | — | — | — | County |
| 25 May 2008 | Thunderstorm Wind | 60 mph | $1K | — | — | — | County |
| 30 Sep 2007 | Thunderstorm Wind | 70 mph | $5K | — | — | — | County |
| 10 Aug 2006 | Thunderstorm Wind | 66 mph | $5K | — | — | — | County |
| 10 Aug 2006 | Thunderstorm Wind | 66 mph | $4K | — | — | — | County |
| 10 Aug 2006 | Thunderstorm Wind | 66 mph | $2K | — | — | — | County |
| 25 Jul 2006 | Thunderstorm Wind | 66 mph | $5K | — | — | — | County |
| 17 Jul 2006 | Thunderstorm Wind | 70 mph | $15K | — | — | — | County |
| 17 Jul 2006 | Thunderstorm Wind | 60 mph | — | $10K | — | — | County |
| 17 Jul 2006 | Thunderstorm Wind | 58 mph | $5K | — | — | — | County |
| 6 Jun 2006 | Thunderstorm Wind | 60 mph | — | $2K | — | — | County |
| 13 Apr 2006 | Thunderstorm Wind | 70 mph | $1K | — | — | — | County |
| 13 Apr 2006 | Thunderstorm Wind | 58 mph | $500 | — | — | — | County |
| 11 Aug 2005 | Thunderstorm Wind | 66 mph | — | $20K | — | — | County |
| 11 May 2005 | Thunderstorm Wind | 60 mph | $4K | — | — | — | County |
| 12 Dec 2004 | High Wind | 60 mph | $10K | — | — | — | Forecast zone |
| 29 Oct 2004 | Thunderstorm Wind | 60 mph | — | $50K | — | — | County |
| 29 Oct 2004 | Thunderstorm Wind | 60 mph | $4K | — | — | — | County |
| 29 Oct 2004 | Thunderstorm Wind | 60 mph | $4K | — | — | — | County |
| 29 Oct 2004 | Thunderstorm Wind | 60 mph | $2K | — | — | — | County |
| 3 Aug 2004 | Thunderstorm Wind | 70 mph | $2K | $3K | — | — | County |
| 20 Aug 2003 | Thunderstorm Wind | 58 mph | $2K | — | — | — | County |
| 20 Jul 2003 | Thunderstorm Wind | 60 mph | $30K | — | — | — | County |
| 20 Jul 2003 | Thunderstorm Wind | 60 mph | $2K | $5K | — | — | County |
| 5 Jul 2003 | Thunderstorm Wind | 70 mph | $70K | $10K | — | — | County |
| 5 Jul 2003 | Thunderstorm Wind | 70 mph | $50K | $10K | — | — | County |
| 9 Mar 2002 | Thunderstorm Wind | — | $200K | — | — | — | County |
| 17 May 2001 | Thunderstorm Wind | — | $2K | — | — | — | County |
| 16 May 1999 | Thunderstorm Wind | — | $5K | — | — | — | County |
| 16 May 1999 | Thunderstorm Wind | — | $200 | — | — | — | County |
| 29 Jun 1998 | Thunderstorm Wind | — | $31M | $14M | — | 12 | County |
| 28 Jun 1998 | Thunderstorm Wind | — | $1K | — | — | — | County |
| 24 Jun 1998 | Thunderstorm Wind | — | $5K | — | — | — | County |
| 6 Apr 1997 | High Wind | 55 mph | $250K | — | — | — | Forecast zone |
| 24 May 1996 | High Wind | 60 mph | $500K | — | — | — | Forecast zone |
| 9 Nov 1975 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 11 May 1975 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 21 Aug 1974 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 22 Jun 1974 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 20 Jun 1974 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 20 Jun 1974 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 30 May 1974 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 18 May 1971 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 14 Jul 1970 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 3 Jul 1970 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 3 Jul 1970 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 3 Jul 1969 | Thunderstorm Wind | 75 mph | — | — | — | — | County |
| 6 Jun 1969 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 24 Jun 1968 | Thunderstorm Wind | 81 mph | — | — | — | — | County |
| 10 Jun 1968 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 20 Sep 1965 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 28 May 1962 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 7 May 1962 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 5 May 1959 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 13 Jul 1958 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 13 Jul 1958 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
Questions and answers
How many wind events has Johnson County had?
298 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 Johnson County?
17 Jun 2026 (Thunderstorm Wind, 64 mph). Records reach NCEI about 120 days after the month ends.
What was the most damaging wind event recorded in Johnson County?
The thunderstorm wind of 29 Jun 1998, with property damage estimated by NCEI at $31M and crop damage at $14M.
How does Johnson County compare with Iowa for wind?
48.6 events per 100 square miles against 37.3 statewide; the county holds 298 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.