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Wind in Williamson County, Illinois
228 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.
Williamson County, Illinois, has 228 wind events in the NCEI record since 1950, with at least one in 46 different years.
April is the busiest month, with 36 of the recorded events. The last 20 years account for 155 events against 52 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 0.9% of the 24,881 wind events recorded in Illinois; its 54.3 per 100 square miles compares with 44.8 statewide.
107 wind reports with a measured or estimated speed reached the 58 mph severe threshold, and 20 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 Illinois
| Measure | Williamson County | Illinois | US |
|---|---|---|---|
| Wind events since 1950 | 228 | 24,881 | 701,953 |
| Per 100 square miles | 54.3 | 44.8 | 19.9 |
| Per 10,000 residents | 34.1 | 19.6 | 21.1 |
| Deaths recorded | 0 | 54 | 2,166 |
| Busiest month | April | June | June |
By year
Seasonality
19Feb
19Mar
26Apr
36May
30Jun
21Jul
31Aug
7Sep
9Oct
7Nov
12Dec
11
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 151 events kept for this page are the 120 most recent plus the 80 with the most damage, deaths or injuries out of 228. Magnitude is hail size, tornado rating or wind speed as recorded.
| Date | Event type | Magnitude | Property damage | Crop damage | Deaths | Injuries | Geography |
|---|---|---|---|---|---|---|---|
| 27 Apr 2026 | Thunderstorm Wind | 81 mph | $35K | — | — | — | County |
| 27 Apr 2026 | Thunderstorm Wind | 75 mph | $30K | — | — | — | County |
| 2 Apr 2026 | Strong Wind | 43 mph | $1K | — | — | — | Forecast zone |
| 17 Feb 2026 | Strong Wind | 39 mph | $1K | — | — | — | Forecast zone |
| 14 Jan 2026 | Strong Wind | 40 mph | $1K | — | — | — | Forecast zone |
| 8 Jan 2026 | Strong Wind | 40 mph | $1K | — | — | — | Forecast zone |
| 20 May 2025 | Thunderstorm Wind | 60 mph | $12K | — | — | — | County |
| 16 May 2025 | Strong Wind | 55 mph | $3K | — | — | — | Forecast zone |
| 16 May 2025 | Strong Wind | 55 mph | $1K | — | — | — | Forecast zone |
| 28 Mar 2025 | Strong Wind | 41 mph | $1K | — | — | — | Forecast zone |
| 19 Mar 2025 | Strong Wind | 47 mph | $1K | — | — | — | Forecast zone |
| 18 Mar 2025 | Strong Wind | 44 mph | $1K | — | — | — | Forecast zone |
| 14 Mar 2025 | Strong Wind | 47 mph | $1K | — | — | — | Forecast zone |
| 5 Mar 2025 | Strong Wind | 46 mph | $1K | — | — | — | Forecast zone |
| 4 Mar 2025 | Strong Wind | 46 mph | $1K | — | — | — | Forecast zone |
| 17 Jan 2025 | Strong Wind | 41 mph | $1K | — | — | — | Forecast zone |
| 27 Sep 2024 | Strong Wind | 40 mph | $1K | — | — | — | Forecast zone |
| 30 Jul 2024 | Thunderstorm Wind | 70 mph | $20K | — | — | — | County |
| 5 Jul 2024 | Thunderstorm Wind | 81 mph | $75K | — | — | — | County |
| 26 May 2024 | Thunderstorm Wind | 81 mph | $15K | — | — | — | County |
| 26 May 2024 | Thunderstorm Wind | 70 mph | $30K | — | — | — | County |
| 26 May 2024 | Thunderstorm Wind | 70 mph | $5K | — | — | — | County |
| 26 May 2024 | Thunderstorm Wind | 90 mph | $12K | — | — | — | County |
| 14 May 2024 | Thunderstorm Wind | 70 mph | $10K | — | — | — | County |
| 8 May 2024 | Thunderstorm Wind | 75 mph | $8K | — | — | — | County |
| 2 Apr 2024 | Thunderstorm Wind | 70 mph | $5K | — | — | — | County |
| 2 Apr 2024 | Thunderstorm Wind | 70 mph | $3K | — | — | — | County |
| 2 Apr 2024 | Thunderstorm Wind | 85 mph | $25K | — | — | — | County |
| 2 Apr 2024 | Thunderstorm Wind | 75 mph | $15K | — | — | — | County |
| 25 Mar 2024 | Strong Wind | 48 mph | $1K | — | — | — | Forecast zone |
| 27 Feb 2024 | Strong Wind | 43 mph | $1K | — | — | — | Forecast zone |
| 6 Aug 2023 | Thunderstorm Wind | 64 mph | $4K | — | — | — | County |
| 29 Jul 2023 | Thunderstorm Wind | 60 mph | $4K | — | — | — | County |
| 29 Jul 2023 | Thunderstorm Wind | 70 mph | $10K | — | — | — | County |
| 29 Jul 2023 | Thunderstorm Wind | 60 mph | $15K | — | — | — | County |
| 16 Jul 2023 | Thunderstorm Wind | 64 mph | $10K | — | — | — | County |
| 2 Jul 2023 | Thunderstorm Wind | 60 mph | $2K | — | — | — | County |
| 2 Jul 2023 | Thunderstorm Wind | 70 mph | $125K | — | — | — | County |
| 7 May 2023 | Thunderstorm Wind | 60 mph | $5K | — | — | — | County |
| 20 Apr 2023 | Strong Wind | 40 mph | $1K | — | — | — | Forecast zone |
| 5 Apr 2023 | Thunderstorm Wind | 64 mph | $15K | — | — | — | County |
| 1 Apr 2023 | Strong Wind | 48 mph | $1K | — | — | — | Forecast zone |
| 31 Mar 2023 | Strong Wind | 48 mph | $1K | — | — | — | Forecast zone |
| 24 Mar 2023 | Thunderstorm Wind | 64 mph | $10K | — | — | — | County |
| 3 Mar 2023 | Strong Wind | 43 mph | $1K | — | — | — | Forecast zone |
| 27 Feb 2023 | Strong Wind | 43 mph | $1K | — | — | — | Forecast zone |
| 22 Feb 2023 | Strong Wind | 46 mph | $1K | — | — | — | Forecast zone |
| 9 Feb 2023 | Strong Wind | 45 mph | $1K | — | — | — | Forecast zone |
| 5 Nov 2022 | Strong Wind | 47 mph | $9K | — | — | — | Forecast zone |
| 27 Jul 2022 | Thunderstorm Wind | 75 mph | $30K | — | — | — | County |
| 17 Jul 2022 | Thunderstorm Wind | 64 mph | $10K | — | — | — | County |
| 23 Apr 2022 | Strong Wind | 41 mph | $1K | — | — | — | Forecast zone |
| 10 Apr 2022 | Strong Wind | 40 mph | $1K | — | — | — | Forecast zone |
| 30 Mar 2022 | Strong Wind | 45 mph | $1K | — | — | — | Forecast zone |
| 24 Dec 2021 | Strong Wind | 43 mph | $1K | — | — | — | Forecast zone |
| 10 Jul 2021 | Thunderstorm Wind | 60 mph | $1K | — | — | — | County |
| 29 Jun 2021 | Thunderstorm Wind | 60 mph | $5K | — | — | — | County |
| 25 Mar 2021 | Strong Wind | 40 mph | $1K | — | — | — | Forecast zone |
| 10 Mar 2021 | Strong Wind | 45 mph | $1K | — | — | — | Forecast zone |
| 14 Nov 2020 | Strong Wind | 43 mph | $1K | — | — | — | Forecast zone |
| 1 Jul 2020 | Thunderstorm Wind | 60 mph | $3K | — | — | — | County |
| 13 Apr 2020 | Strong Wind | 40 mph | $1K | — | — | — | Forecast zone |
| 11 Jan 2020 | Thunderstorm Wind | 60 mph | $1K | — | — | — | County |
| 10 Jan 2020 | Strong Wind | 40 mph | $1K | — | — | — | Forecast zone |
| 26 Nov 2019 | Strong Wind | 40 mph | $1K | — | — | — | Forecast zone |
| 21 Jun 2019 | Thunderstorm Wind | 75 mph | $30K | — | — | — | County |
| 21 Jun 2019 | Thunderstorm Wind | 75 mph | $75K | — | — | — | County |
| 29 May 2019 | Thunderstorm Wind | 60 mph | $1K | — | — | — | County |
| 26 May 2019 | Thunderstorm Wind | 64 mph | $5K | — | — | — | County |
| 11 Apr 2019 | Strong Wind | 40 mph | $1K | — | — | — | Forecast zone |
| 30 Mar 2019 | Strong Wind | 45 mph | $1K | — | — | — | Forecast zone |
| 14 Mar 2019 | Strong Wind | 48 mph | $1K | — | — | — | Forecast zone |
| 9 Mar 2019 | Strong Wind | 40 mph | $1K | — | — | — | Forecast zone |
| 24 Feb 2019 | Strong Wind | 40 mph | $1K | — | — | — | Forecast zone |
| 27 Dec 2018 | Strong Wind | 40 mph | $1K | — | — | — | Forecast zone |
| 25 Nov 2018 | Strong Wind | 40 mph | $1K | — | — | — | Forecast zone |
| 28 Jun 2018 | Thunderstorm Wind | 75 mph | $100K | — | — | — | County |
| 26 Jun 2018 | Thunderstorm Wind | 64 mph | $2K | — | — | — | County |
| 13 Apr 2018 | Strong Wind | 40 mph | $1K | — | — | — | Forecast zone |
| 12 Apr 2018 | Strong Wind | 45 mph | $1K | — | — | — | Forecast zone |
| 6 Mar 2018 | Strong Wind | 40 mph | $1K | — | — | — | Forecast zone |
| 15 Feb 2018 | Strong Wind | 40 mph | $1K | — | — | — | Forecast zone |
| 22 Jan 2018 | Strong Wind | 40 mph | $1K | — | — | — | Forecast zone |
| 18 Nov 2017 | Thunderstorm Wind | 60 mph | $5K | — | — | — | County |
| 18 Nov 2017 | Strong Wind | 40 mph | $1K | — | — | — | Forecast zone |
| 13 Jul 2017 | Thunderstorm Wind | 70 mph | $15K | — | — | — | County |
| 27 May 2017 | Thunderstorm Wind | 70 mph | $10K | — | — | — | County |
| 5 May 2017 | Strong Wind | 40 mph | $1K | — | — | — | Forecast zone |
| 16 Apr 2017 | Thunderstorm Wind | 75 mph | $8K | — | — | — | County |
| 9 Apr 2017 | Strong Wind | 43 mph | $1K | — | — | — | Forecast zone |
| 6 Mar 2017 | Strong Wind | 56 mph | $1K | — | — | — | Forecast zone |
| 10 Feb 2017 | Strong Wind | 35 mph | $1K | — | — | — | Forecast zone |
| 10 Jan 2017 | Strong Wind | 52 mph | $1K | — | — | — | Forecast zone |
| 13 Jul 2016 | Thunderstorm Wind | 60 mph | $3K | — | — | — | County |
| 22 Mar 2016 | Strong Wind | 37 mph | $1K | — | — | — | Forecast zone |
| 28 Feb 2016 | Strong Wind | 45 mph | $1K | — | — | — | Forecast zone |
| 19 Feb 2016 | Strong Wind | 52 mph | $1K | — | — | — | Forecast zone |
| 23 Dec 2015 | Thunderstorm Wind | 60 mph | $3K | — | — | — | County |
| 23 Dec 2015 | Thunderstorm Wind | 64 mph | $7K | — | — | — | County |
| 13 Dec 2015 | Strong Wind | 45 mph | $7K | — | — | — | Forecast zone |
| 30 May 2015 | Thunderstorm Wind | 60 mph | $6K | — | — | — | County |
| 8 May 2015 | Thunderstorm Wind | 60 mph | $20K | — | — | — | County |
| 9 Apr 2015 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 9 Apr 2015 | Thunderstorm Wind | 60 mph | $20K | — | — | — | County |
| 24 Nov 2014 | Strong Wind | 49 mph | $1K | — | — | — | Forecast zone |
| 12 Mar 2014 | Strong Wind | 54 mph | $1K | — | — | — | Forecast zone |
| 20 Feb 2014 | Thunderstorm Wind | 70 mph | $15K | — | — | — | County |
| 20 Feb 2014 | Strong Wind | 45 mph | $1K | — | — | — | Forecast zone |
| 26 Jan 2014 | Strong Wind | 45 mph | $1K | — | — | — | Forecast zone |
| 21 Jan 2014 | Strong Wind | 45 mph | $1K | — | — | — | Forecast zone |
| 17 Nov 2013 | Thunderstorm Wind | 70 mph | — | — | — | — | County |
| 1 Jun 2013 | Thunderstorm Wind | 60 mph | $10K | — | — | — | County |
| 1 Jun 2013 | Thunderstorm Wind | 60 mph | $10K | — | — | — | County |
| 1 Jun 2013 | Thunderstorm Wind | 60 mph | $25K | — | — | — | County |
| 29 Jan 2013 | Thunderstorm Wind | 60 mph | $10K | — | — | — | County |
| 29 Jan 2013 | Thunderstorm Wind | 75 mph | $50K | — | — | — | County |
| 29 Jan 2013 | Thunderstorm Wind | 70 mph | $8K | — | — | — | County |
| 20 Dec 2012 | Strong Wind | 45 mph | $1K | — | — | — | Forecast zone |
| 7 Sep 2012 | Thunderstorm Wind | 70 mph | $80K | — | — | — | County |
| 26 Jul 2012 | Thunderstorm Wind | 60 mph | $5K | — | — | — | County |
| 26 Jul 2012 | Thunderstorm Wind | 60 mph | $4K | — | — | — | County |
| 2 Jul 2012 | Thunderstorm Wind | 70 mph | $20K | — | — | — | County |
| 29 Feb 2012 | Thunderstorm Wind | 100 mph | $50K | — | — | — | County |
| 13 Nov 2011 | Strong Wind | 51 mph | $5K | — | — | — | Forecast zone |
| 25 May 2011 | Thunderstorm Wind | 64 mph | $20K | — | — | — | County |
| 19 Apr 2011 | Thunderstorm Wind | 70 mph | $100K | — | — | — | County |
| 19 Apr 2011 | Thunderstorm Wind | 70 mph | $50K | — | — | — | County |
| 11 Jul 2010 | Thunderstorm Wind | 75 mph | $100K | — | — | — | County |
| 6 Apr 2010 | Strong Wind | 40 mph | $10K | — | — | — | Forecast zone |
| 4 Aug 2009 | Thunderstorm Wind | 60 mph | $15K | — | — | — | County |
| 12 Jul 2009 | Thunderstorm Wind | 58 mph | $10K | — | — | — | County |
| 8 May 2009 | Thunderstorm Wind | 100 mph | $175M | — | — | 23 | County |
| 2 Apr 2009 | Thunderstorm Wind | 64 mph | $15K | — | — | — | County |
| 27 Dec 2008 | Thunderstorm Wind | 60 mph | $10K | — | — | — | County |
| 14 Sep 2008 | High Wind | 60 mph | $500K | — | — | — | Forecast zone |
| 9 Jun 2008 | Thunderstorm Wind | 58 mph | $6K | — | — | — | County |
| 11 May 2008 | Strong Wind | 45 mph | $10K | — | — | — | Forecast zone |
| 18 Oct 2007 | Thunderstorm Wind | 62 mph | $25K | — | — | — | County |
| 2 Apr 2006 | Thunderstorm Wind | 60 mph | $10K | — | — | — | County |
| 22 Apr 2005 | Thunderstorm Wind | 58 mph | $15K | — | — | — | County |
| 5 Jul 2004 | Thunderstorm Wind | 58 mph | $10K | — | — | — | County |
| 26 May 2004 | Thunderstorm Wind | 69 mph | $75K | — | — | — | County |
| 10 Jul 2002 | Thunderstorm Wind | 58 mph | $10K | — | — | — | County |
| 7 Sep 2001 | Thunderstorm Wind | 60 mph | $5K | — | — | — | County |
| 3 Jan 2000 | Thunderstorm Wind | 86 mph | $100K | — | — | — | County |
| 3 Jan 2000 | Thunderstorm Wind | 100 mph | $100K | — | — | — | County |
| 4 Jun 1999 | Thunderstorm Wind | — | $7K | — | — | — | County |
| 17 May 1999 | Thunderstorm Wind | 60 mph | $35K | — | — | — | County |
| 12 Jun 1998 | Thunderstorm Wind | 70 mph | $25K | — | — | — | County |
| 9 Jun 1998 | Thunderstorm Wind | 63 mph | $20K | — | — | — | County |
| 14 Jul 1997 | Thunderstorm Wind | 58 mph | $5K | — | — | — | County |
Questions and answers
How many wind events has Williamson County had?
228 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 Williamson County?
27 Apr 2026 (Thunderstorm Wind, 75 mph). Records reach NCEI about 120 days after the month ends.
What was the most damaging wind event recorded in Williamson County?
The thunderstorm wind of 8 May 2009, with property damage estimated by NCEI at $175M.
How does Williamson County compare with Illinois for wind?
54.3 events per 100 square miles against 44.8 statewide; the county holds 228 of the state's 24,881 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.