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Wind in Delaware County, Pennsylvania
478 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.
Delaware County, Pennsylvania, has 478 wind events in the NCEI record since 1950, with at least one in 57 different years.
June is the busiest month, with 95 of the recorded events. The last 20 years account for 314 events against 139 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 1.8% of the 26,598 wind events recorded in Pennsylvania; its 260.0 per 100 square miles compares with 59.4 statewide.
NCEI attributes 3 deaths in the county to damaging wind.
133 wind reports with a measured or estimated speed reached the 58 mph severe threshold, and 12 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 Pennsylvania
| Measure | Delaware County | Pennsylvania | US |
|---|---|---|---|
| Wind events since 1950 | 478 | 26,598 | 701,953 |
| Per 100 square miles | 260.0 | 59.4 | 19.9 |
| Per 10,000 residents | 8.3 | 20.5 | 21.1 |
| Deaths recorded | 3 | 91 | 2,166 |
| Busiest month | June | June | June |
By year
Seasonality
22Feb
41Mar
40Apr
38May
24Jun
95Jul
73Aug
50Sep
19Oct
23Nov
27Dec
26
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 200 events kept for this page are the 120 most recent plus the 80 with the most damage, deaths or injuries out of 478. Magnitude is hail size, tornado rating or wind speed as recorded.
| Date | Event type | Magnitude | Property damage | Crop damage | Deaths | Injuries | Geography |
|---|---|---|---|---|---|---|---|
| 22 Jun 2026 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 14 Jun 2026 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 14 Jun 2026 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 14 Jun 2026 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 14 Jun 2026 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 14 Jun 2026 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 20 May 2026 | Thunderstorm Wind | 63 mph | — | — | — | — | County |
| 16 Mar 2026 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 7 Feb 2026 | High Wind | 58 mph | — | — | — | — | Forecast zone |
| 29 Dec 2025 | High Wind | 60 mph | — | — | — | — | Forecast zone |
| 19 Dec 2025 | High Wind | 62 mph | — | — | — | — | Forecast zone |
| 25 Jul 2025 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 19 Jun 2025 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 19 Jun 2025 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 19 Jun 2025 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 19 Jun 2025 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 19 Jun 2025 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 19 Jun 2025 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 19 Jun 2025 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 19 Jun 2025 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 3 May 2025 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 4 Apr 2025 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 4 Apr 2025 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 4 Apr 2025 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 4 Apr 2025 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 4 Apr 2025 | Thunderstorm Wind | 105 mph | — | — | — | — | County |
| 4 Apr 2025 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 4 Apr 2025 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 4 Apr 2025 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 4 Apr 2025 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 4 Apr 2025 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 16 Jul 2024 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 16 Jul 2024 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 23 Jun 2024 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 23 Jun 2024 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 8 Sep 2023 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 12 Aug 2023 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 7 Aug 2023 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 7 Aug 2023 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 7 Aug 2023 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 7 Aug 2023 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 29 Jul 2023 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 29 Jul 2023 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 29 Jul 2023 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 21 Jul 2023 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 26 Jun 2023 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 26 Jun 2023 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 26 Jun 2023 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 28 Jul 2022 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 28 Jul 2022 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 14 Jun 2022 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 7 Mar 2022 | Thunderstorm Wind | 69 mph | — | — | — | — | County |
| 18 Feb 2022 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 28 Sep 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 23 Sep 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 11 Aug 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 11 Aug 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 11 Aug 2021 | Thunderstorm Wind | 63 mph | — | — | — | — | County |
| 10 Aug 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 10 Aug 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 10 Aug 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 10 Aug 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 10 Aug 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 10 Aug 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 10 Aug 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 10 Aug 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 21 Jul 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 8 Jul 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 8 Jul 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 8 Jul 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 8 Jul 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 8 Jul 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 30 Jun 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 14 Jun 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 14 Jun 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 14 Jun 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 3 Jun 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 30 Apr 2021 | High Wind | 58 mph | — | — | — | — | Forecast zone |
| 29 Apr 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 29 Apr 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 29 Apr 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 28 Mar 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 28 Mar 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 28 Mar 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 28 Mar 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 28 Mar 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 28 Mar 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 28 Mar 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 28 Mar 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 28 Mar 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 30 Nov 2020 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 30 Nov 2020 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 30 Nov 2020 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 30 Nov 2020 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 15 Nov 2020 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 15 Nov 2020 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 15 Nov 2020 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 28 Aug 2020 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 28 Aug 2020 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 28 Aug 2020 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 28 Aug 2020 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 7 Aug 2020 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 4 Jun 2020 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 4 Jun 2020 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 4 Jun 2020 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 4 Jun 2020 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 4 Jun 2020 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 3 Jun 2020 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 3 Jun 2020 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 3 Jun 2020 | Thunderstorm Wind | 59 mph | — | — | — | — | County |
| 3 Jun 2020 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 3 Jun 2020 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 3 Jun 2020 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 3 Jun 2020 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 3 Jun 2020 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 3 Jun 2020 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 3 Jun 2020 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 3 Jun 2020 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 3 Jun 2020 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 3 Jun 2020 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 3 Jun 2020 | Thunderstorm Wind | 60 mph | — | — | 1 | — | County |
| 31 Oct 2019 | Thunderstorm Wind | 69 mph | — | — | — | 1 | County |
| 2 Mar 2018 | High Wind | 58 mph | — | — | — | 1 | Forecast zone |
| 2 Mar 2017 | High Wind | 58 mph | — | — | — | 1 | Forecast zone |
| 5 Jun 2016 | Thunderstorm Wind | 58 mph | $4K | — | — | — | County |
| 9 Jul 2015 | Thunderstorm Wind | 60 mph | $50K | — | — | — | County |
| 23 Jun 2015 | Thunderstorm Wind | 75 mph | $2.5M | — | — | — | County |
| 23 Jun 2015 | Thunderstorm Wind | 85 mph | $1.0M | — | — | — | County |
| 23 Jun 2015 | Thunderstorm Wind | 75 mph | $500K | — | — | — | County |
| 23 Jun 2015 | Thunderstorm Wind | 64 mph | $500K | — | — | — | County |
| 23 Jun 2015 | Thunderstorm Wind | 64 mph | $100K | — | — | — | County |
| 23 Jun 2015 | Thunderstorm Wind | 60 mph | $100K | — | — | — | County |
| 23 Jun 2015 | Thunderstorm Wind | 64 mph | $100K | — | — | — | County |
| 23 Jun 2015 | Thunderstorm Wind | 64 mph | $50K | — | — | — | County |
| 23 Jun 2015 | Thunderstorm Wind | 71 mph | $50K | — | — | — | County |
| 15 Feb 2015 | High Wind | 61 mph | $200K | — | — | 1 | Forecast zone |
| 2 Feb 2015 | Strong Wind | 49 mph | $20K | — | 1 | — | Forecast zone |
| 24 Nov 2014 | Strong Wind | 49 mph | $3K | — | — | — | Forecast zone |
| 2 Nov 2014 | Strong Wind | 49 mph | $20K | — | — | — | Forecast zone |
| 8 Jul 2014 | Thunderstorm Wind | 64 mph | $10K | — | — | — | County |
| 8 Jul 2014 | Thunderstorm Wind | 60 mph | $10K | — | — | — | County |
| 27 May 2014 | Thunderstorm Wind | 60 mph | $10K | — | — | — | County |
| 15 Apr 2014 | Strong Wind | 49 mph | $3K | — | — | — | Forecast zone |
| 26 Mar 2014 | Strong Wind | 46 mph | $3K | — | — | — | Forecast zone |
| 12 Mar 2014 | Strong Wind | 56 mph | $8K | — | — | — | Forecast zone |
| 25 Jun 2013 | Thunderstorm Wind | 58 mph | $10K | — | — | — | County |
| 24 Jun 2013 | Thunderstorm Wind | 60 mph | $50K | — | — | — | County |
| 30 Dec 2012 | Strong Wind | 49 mph | $2K | — | — | — | Forecast zone |
| 26 Dec 2012 | High Wind | 59 mph | $5K | — | — | — | Forecast zone |
| 21 Dec 2012 | Strong Wind | 49 mph | $3K | — | — | — | Forecast zone |
| 29 Oct 2012 | High Wind | 59 mph | $1.0M | — | — | 1 | Forecast zone |
| 18 Sep 2012 | Thunderstorm Wind | 60 mph | — | — | — | 2 | County |
| 18 Sep 2012 | Thunderstorm Wind | 60 mph | — | — | — | 2 | County |
| 18 Sep 2012 | Strong Wind | 46 mph | $2K | — | — | — | Forecast zone |
| 25 Feb 2012 | Strong Wind | 48 mph | $2K | — | — | — | Forecast zone |
| 27 Dec 2011 | Strong Wind | 49 mph | $3K | — | — | — | Forecast zone |
| 16 Apr 2011 | Strong Wind | 46 mph | $3K | — | — | — | Forecast zone |
| 5 Apr 2011 | Strong Wind | 49 mph | $2K | — | — | — | Forecast zone |
| 25 Feb 2011 | High Wind | 63 mph | $100K | — | — | — | Forecast zone |
| 18 Feb 2011 | Strong Wind | 49 mph | $10K | — | — | — | Forecast zone |
| 30 Sep 2010 | Strong Wind | 45 mph | $10K | — | — | — | Forecast zone |
| 24 Jun 2010 | Thunderstorm Wind | 76 mph | $1.0M | — | — | 2 | County |
| 8 May 2010 | Strong Wind | 52 mph | $2K | — | — | — | Forecast zone |
| 13 Mar 2010 | Strong Wind | 52 mph | $50K | — | — | — | Forecast zone |
| 25 Jan 2010 | Strong Wind | 49 mph | $10K | — | — | — | Forecast zone |
| 2 Jan 2010 | Strong Wind | 46 mph | $3K | — | — | — | Forecast zone |
| 9 Dec 2009 | Strong Wind | 49 mph | $5K | — | — | — | Forecast zone |
| 12 Feb 2009 | High Wind | 58 mph | $500K | — | — | — | Forecast zone |
| 31 Dec 2008 | Strong Wind | 46 mph | $5K | — | — | — | Forecast zone |
| 12 May 2008 | Strong Wind | 49 mph | $10K | — | — | — | Forecast zone |
| 8 Mar 2008 | Thunderstorm Wind | 64 mph | $100K | — | — | — | County |
| 8 Mar 2008 | Strong Wind | 52 mph | $5K | — | — | — | Forecast zone |
| 5 Mar 2008 | Strong Wind | 40 mph | $2K | — | — | — | Forecast zone |
| 10 Feb 2008 | Strong Wind | 52 mph | $3K | — | — | — | Forecast zone |
| 30 Jan 2008 | Strong Wind | 52 mph | $3K | — | — | — | Forecast zone |
| 16 Dec 2007 | Strong Wind | 52 mph | $100K | — | — | — | Forecast zone |
| 3 Dec 2007 | Strong Wind | 46 mph | $50K | — | — | — | Forecast zone |
| 16 Apr 2007 | Strong Wind | 51 mph | $100K | — | — | — | Forecast zone |
| 14 Feb 2007 | Strong Wind | 46 mph | $2K | — | — | — | Forecast zone |
| 1 Dec 2006 | Strong Wind | 46 mph | $5K | — | — | — | Forecast zone |
| 16 Nov 2006 | Strong Wind | 46 mph | $5K | — | — | — | Forecast zone |
| 29 Oct 2006 | Strong Wind | 46 mph | $2K | — | — | — | Forecast zone |
| 2 Jun 2006 | Thunderstorm Wind | 58 mph | $10K | — | — | — | County |
| 24 Feb 2006 | Strong Wind | 46 mph | $2K | — | — | — | Forecast zone |
| 18 Jan 2006 | Strong Wind | 52 mph | $16K | — | — | — | Forecast zone |
| 14 Jan 2006 | High Wind | 58 mph | $100K | — | — | — | Forecast zone |
| 1 Dec 2004 | Strong Wind | 52 mph | $20K | — | — | — | Forecast zone |
| 15 May 2004 | Thunderstorm Wind | 46 mph | — | — | — | 8 | County |
| 19 Nov 2003 | Strong Wind | 46 mph | $10K | — | — | — | Forecast zone |
| 13 Nov 2003 | High Wind | 58 mph | $100K | — | — | — | Forecast zone |
| 15 Oct 2003 | Strong Wind | 46 mph | $10K | — | — | — | Forecast zone |
| 14 Oct 2003 | Thunderstorm Wind | 64 mph | — | — | 1 | 1 | County |
| 23 Sep 2003 | Thunderstorm Wind | 70 mph | $1.0M | — | — | 1 | County |
| 18 Sep 2003 | High Wind | 58 mph | $5.2M | — | — | — | Forecast zone |
| 18 Jan 1999 | High Wind | 58 mph | — | — | — | 1 | Forecast zone |
| 30 Dec 1998 | Strong Wind | — | — | — | — | 1 | Forecast zone |
| 17 Aug 1997 | Thunderstorm Wind | — | $300K | — | — | — | County |
| 16 May 1997 | Strong Wind | — | — | — | — | 1 | Forecast zone |
| 6 May 1997 | Thunderstorm Wind | 69 mph | $200K | — | — | — | County |
| 16 Jun 1991 | Thunderstorm Wind | 0 mph | — | — | — | 1 | County |
Questions and answers
How many wind events has Delaware County had?
478 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 Delaware County?
22 Jun 2026 (Thunderstorm Wind, 58 mph). Records reach NCEI about 120 days after the month ends.
What was the most damaging wind event recorded in Delaware County?
The high wind of 18 Sep 2003, with property damage estimated by NCEI at $5.2M.
How does Delaware County compare with Pennsylvania for wind?
260.0 events per 100 square miles against 59.4 statewide; the county holds 478 of the state's 26,598 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.