States › Iowa › Jefferson County › Wind
Wind in Jefferson County, Iowa
127 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.
Jefferson County, Iowa, has 127 wind events in the NCEI record since 1950, with at least one in 47 different years.
June is the busiest month, with 35 of the recorded events. The last 20 years account for 67 events against 40 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 0.6% of the 20,854 wind events recorded in Iowa; its 29.2 per 100 square miles compares with 37.3 statewide.
93 wind reports with a measured or estimated speed reached the 58 mph severe threshold, and 8 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 | Jefferson County | Iowa | US |
|---|---|---|---|
| Wind events since 1950 | 127 | 20,854 | 701,953 |
| Per 100 square miles | 29.2 | 37.3 | 19.9 |
| Per 10,000 residents | 81.2 | 65.3 | 21.1 |
| Deaths recorded | 0 | 25 | 2,166 |
| Busiest month | June | June | June |
By year
Seasonality
0Feb
1Mar
8Apr
11May
13Jun
35Jul
18Aug
25Sep
9Oct
3Nov
2Dec
2
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 127 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 |
|---|---|---|---|---|---|---|---|
| 23 Apr 2026 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 2 Apr 2026 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 2 Apr 2026 | Thunderstorm Wind | 75 mph | — | — | — | — | County |
| 14 Mar 2025 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 30 Jul 2024 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 7 May 2024 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 29 Jun 2023 | Thunderstorm Wind | 75 mph | — | — | — | — | County |
| 29 Jun 2023 | Thunderstorm Wind | 75 mph | — | — | — | — | County |
| 29 Jun 2023 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 5 Mar 2022 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 15 Dec 2021 | High Wind | 59 mph | — | — | — | — | Forecast zone |
| 20 Sep 2021 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 20 Sep 2021 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 18 Jun 2021 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 10 Aug 2020 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 10 Aug 2020 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 10 Aug 2020 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 28 Jun 2019 | Thunderstorm Wind | 75 mph | — | — | — | — | County |
| 1 Sep 2018 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 20 Jul 2017 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 17 May 2017 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 6 Mar 2017 | Thunderstorm Wind | 68 mph | — | — | — | — | County |
| 6 Mar 2017 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 6 Mar 2017 | Thunderstorm Wind | 68 mph | — | — | — | — | County |
| 6 Jul 2015 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 6 Jul 2015 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 20 Jun 2015 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 20 Jun 2015 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 24 Jun 2013 | Thunderstorm Wind | 63 mph | — | — | — | — | County |
| 24 Jun 2013 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 15 Jun 2013 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 30 May 2013 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 30 May 2013 | Thunderstorm Wind | 61 mph | — | — | — | — | County |
| 28 May 2013 | Thunderstorm Wind | 69 mph | — | — | — | — | County |
| 28 May 2013 | Thunderstorm Wind | 63 mph | — | — | — | — | County |
| 28 May 2013 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 16 Jun 2012 | Thunderstorm Wind | 60 mph | $5K | — | — | — | County |
| 16 Jun 2012 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 6 Aug 2011 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 29 May 2011 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 29 May 2011 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 3 Aug 2010 | Thunderstorm Wind | 70 mph | $1K | — | — | — | County |
| 3 Aug 2010 | Thunderstorm Wind | 70 mph | $100K | — | — | — | County |
| 1 Jun 2010 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 22 Jun 2009 | Thunderstorm Wind | 59 mph | — | — | — | — | County |
| 22 Jun 2009 | Thunderstorm Wind | 60 mph | $25K | — | — | — | County |
| 22 Jun 2009 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 19 Jun 2009 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 18 Jun 2009 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 26 Oct 2008 | High Wind | 58 mph | — | — | — | — | Forecast zone |
| 27 Jul 2008 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 27 Jul 2008 | Thunderstorm Wind | 70 mph | $15K | — | — | — | County |
| 27 Jul 2008 | Thunderstorm Wind | 75 mph | $50K | — | — | — | County |
| 27 Jul 2008 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 8 Jun 2008 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 8 Jun 2008 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 8 Jun 2008 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 25 May 2008 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 10 Apr 2008 | Thunderstorm Wind | 70 mph | $50K | — | — | — | County |
| 10 Apr 2008 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 23 Aug 2007 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 23 Aug 2007 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 23 Aug 2007 | Thunderstorm Wind | 61 mph | — | — | — | — | County |
| 23 Aug 2007 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 23 Aug 2007 | Thunderstorm Wind | 60 mph | $5K | — | — | — | County |
| 16 Jul 2007 | Thunderstorm Wind | 81 mph | — | — | — | — | County |
| 16 Jul 2007 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 2 Aug 2006 | Thunderstorm Wind | 58 mph | $500 | — | — | — | County |
| 6 Jun 2006 | Thunderstorm Wind | 60 mph | — | $1K | — | — | County |
| 2 Apr 2006 | Thunderstorm Wind | 70 mph | $2K | — | — | — | County |
| 12 Mar 2006 | Thunderstorm Wind | 60 mph | $5K | — | — | — | County |
| 8 Sep 2005 | Thunderstorm Wind | 60 mph | $5K | — | — | — | County |
| 8 Sep 2005 | Thunderstorm Wind | 58 mph | $5K | — | — | — | County |
| 8 Jun 2005 | Thunderstorm Wind | 81 mph | $50K | $30K | — | — | County |
| 4 Jun 2005 | Thunderstorm Wind | 58 mph | $2K | — | — | — | County |
| 25 Aug 2004 | Thunderstorm Wind | 60 mph | $2K | $3K | — | — | County |
| 14 Jun 2004 | Thunderstorm Wind | 69 mph | $8K | $4K | — | — | County |
| 14 Jun 2004 | Thunderstorm Wind | 60 mph | $5K | $3K | — | — | County |
| 14 Jun 2004 | Thunderstorm Wind | 60 mph | $10K | $3K | — | — | County |
| 12 Nov 2003 | High Wind | 58 mph | $20K | — | — | — | Forecast zone |
| 28 Aug 2003 | Thunderstorm Wind | 63 mph | $10K | $4K | — | — | County |
| 25 Aug 2003 | Thunderstorm Wind | 60 mph | $20K | $5K | — | — | County |
| 25 Aug 2003 | Thunderstorm Wind | 63 mph | $30K | $5K | — | — | County |
| 9 Jul 2003 | Thunderstorm Wind | 70 mph | $60K | $10K | — | — | County |
| 1 Oct 2002 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 12 Aug 2002 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 12 Aug 2002 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 12 Aug 2002 | Thunderstorm Wind | 70 mph | $50K | — | — | — | County |
| 9 Mar 2002 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 3 Aug 2001 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 23 Apr 2001 | Strong Wind | — | — | — | — | — | Forecast zone |
| 25 Feb 2001 | High Wind | 55 mph | — | — | — | — | Forecast zone |
| 13 Jun 2000 | Thunderstorm Wind | 61 mph | $5K | — | — | — | County |
| 3 Sep 1999 | Thunderstorm Wind | 69 mph | — | — | — | — | County |
| 9 Nov 1998 | High Wind | 59 mph | — | — | — | — | Forecast zone |
| 18 Jun 1998 | Thunderstorm Wind | — | $15K | — | — | — | County |
| 15 May 1998 | Thunderstorm Wind | — | $1K | — | — | — | County |
| 30 Mar 1998 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 29 Sep 1997 | High Wind | 60 mph | — | — | — | — | Forecast zone |
| 21 Jun 1997 | Thunderstorm Wind | 69 mph | — | — | — | — | County |
| 21 Jun 1997 | Thunderstorm Wind | 69 mph | — | — | — | — | County |
| 21 Jun 1997 | Thunderstorm Wind | 69 mph | $50K | — | — | — | County |
| 6 Apr 1997 | High Wind | 58 mph | $100K | — | — | — | Forecast zone |
| 29 Oct 1996 | High Wind | 60 mph | — | — | — | — | Forecast zone |
| 25 Aug 1992 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 15 Apr 1992 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 8 May 1988 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 28 Jul 1986 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 30 Jun 1986 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 9 Aug 1985 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 3 Aug 1983 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 13 Sep 1982 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 3 Apr 1981 | Thunderstorm Wind | 63 mph | — | — | — | — | County |
| 10 Jul 1980 | Thunderstorm Wind | 81 mph | — | — | — | — | County |
| 4 Jul 1980 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 18 Aug 1979 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 14 Dec 1975 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 18 Jun 1975 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 21 Aug 1974 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 30 May 1974 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 3 Jul 1970 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 23 Jul 1969 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 29 Jun 1968 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 17 Jul 1965 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 22 Sep 1964 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 22 Apr 1963 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 29 Jul 1957 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
Questions and answers
How many wind events has Jefferson County had?
127 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 Jefferson County?
23 Apr 2026 (Thunderstorm Wind, 60 mph). Records reach NCEI about 120 days after the month ends.
What was the most damaging wind event recorded in Jefferson County?
The high wind of 6 Apr 1997, with property damage estimated by NCEI at $100K.
How does Jefferson County compare with Iowa for wind?
29.2 events per 100 square miles against 37.3 statewide; the county holds 127 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.