County Hazards

States › Pennsylvania › Washington County

Washington County, Pennsylvania

Recorded hazard history: storm events since 1950, federal disaster declarations since 1953, flood insurance claims since 1978, and FEMA's risk index.

FIPS 42125 · 209,470 residents (2021) · 857 sq mi · dominant hazard Wind

Hail · 156Tornado · 25Flood · 215Wind · 684Winter · 67
1970-05-24: Hail1974-04-03: Hail1975-09-05: Hail1976-06-14: Hail1979-08-08: Hail1979-05-12: Hail1980-06-03: Hail1985-07-10: Hail1987-03-25: Hail1987-06-29: Hail1987-06-29: Hail1989-06-26: Hail1990-06-09: Hail1990-07-05: Hail1991-03-26: Hail1996-07-02: Hail1996-07-03: Hail1996-08-14: Hail1996-08-14: Hail1997-07-18: Hail1997-05-03: Hail1998-05-31: Hail1998-05-31: Hail1998-06-26: Hail1999-08-13: Hail2000-05-10: Hail2001-04-09: Hail2001-04-09: Hail2001-04-09: Hail2001-07-10: Hail2002-07-19: Hail2002-09-18: Hail2003-08-27: Hail2003-07-18: Hail2003-07-18: Hail2003-07-18: Hail2003-07-18: Hail2004-05-17: Hail2004-05-17: Hail2004-08-19: Hail2004-06-17: Hail2005-06-06: Hail2005-06-06: Hail2005-06-06: Hail2005-06-06: Hail2005-07-13: Hail2005-07-13: Hail2005-07-25: Hail2006-06-22: Hail2006-06-28: Hail2006-10-04: Hail2007-06-21: Hail2007-06-13: Hail2008-06-16: Hail2008-06-16: Hail2008-06-16: Hail2008-06-16: Hail2008-06-16: Hail2008-06-16: Hail2008-06-16: Hail2008-06-16: Hail2008-07-08: Hail2008-06-04: Hail2009-04-24: Hail2009-05-28: Hail2009-05-28: Hail2010-06-04: Hail2010-06-04: Hail2011-08-19: Hail2011-02-27: Hail2011-04-04: Hail2011-04-04: Hail2011-04-04: Hail2011-03-21: Hail2011-05-13: Hail2012-03-28: Hail2012-03-28: Hail2012-03-28: Hail2012-03-28: Hail2012-03-28: Hail2012-07-30: Hail2013-04-10: Hail2013-04-10: Hail2014-07-30: Hail2015-08-03: Hail2015-08-03: Hail2015-08-03: Hail2015-06-30: Hail2015-04-09: Hail2018-05-12: Hail2018-05-12: Hail2018-05-12: Hail2018-05-14: Hail2018-05-14: Hail2018-05-14: Hail2018-05-14: Hail2018-08-05: Hail2018-08-05: Hail2019-08-02: Hail2020-03-28: Hail2020-03-28: Hail2020-03-28: Hail2020-03-28: Hail2020-03-28: Hail2020-03-28: Hail2020-03-28: Hail2020-03-28: Hail2020-03-28: Hail2020-03-28: Hail2020-03-28: Hail2020-03-28: Hail2020-10-04: Hail2021-07-07: Hail2021-06-14: Hail2022-11-27: Hail2022-11-27: Hail2022-11-27: Hail2022-11-27: Hail1973-05-10: Tornado1976-06-24: Tornado1980-05-31: Tornado1987-08-09: Tornado1987-06-29: Tornado1990-06-30: Tornado2012-09-27: Tornado2016-08-17: Tornado2017-06-23: Tornado2018-06-03: Tornado2021-10-21: Tornado2021-10-21: Tornado2021-10-21: Tornado2021-10-21: Tornado2022-08-01: Tornado2023-08-12: Tornado2024-05-11: Tornado2024-05-17: Tornado2024-06-26: Tornado2025-05-21: Tornado2025-05-16: Tornado2025-05-21: Tornado2026-06-06: Tornado2026-06-06: Tornado2026-06-06: Tornado2025-07-26: Flood2025-07-26: Flood2025-07-26: Flood2025-07-26: Flood2025-07-26: Flood2025-07-26: Flood2025-07-26: Flood2025-07-26: Flood2025-06-25: Flood2025-06-25: Flood2025-06-15: Flood2025-06-15: Flood2025-06-14: Flood2025-06-14: Flood2025-06-14: Flood2025-06-14: Flood2025-06-14: Flood2025-05-30: Flood2024-05-05: Flood2024-05-05: Flood2024-05-05: Flood2024-04-11: Flood2024-04-11: Flood2024-04-11: Flood2024-04-11: Flood2024-04-11: Flood2024-04-11: Flood2024-04-11: Flood2024-04-11: Flood2024-04-03: Flood2024-04-03: Flood2024-04-02: Flood2024-04-02: Flood2024-04-02: Flood2024-04-02: Flood2024-04-02: Flood2024-04-02: Flood2024-04-02: Flood2022-08-05: Flood2022-08-05: Flood2022-05-14: Flood2022-05-06: Flood2021-09-01: Flood2021-09-01: Flood2021-09-01: Flood2021-09-01: Flood2021-09-01: Flood2021-08-31: Flood2021-06-30: Flood2021-06-21: Flood2020-03-29: Flood2020-03-28: Flood2020-03-28: Flood2020-03-28: Flood2020-02-13: Flood2019-10-31: Flood2019-10-31: Flood2019-10-31: Flood2019-07-07: Flood2019-07-07: Flood2018-09-10: Flood2018-09-09: Flood2018-09-09: Flood2018-09-09: Flood2018-09-06: Flood2018-08-10: Flood2018-08-10: Flood2018-08-10: Flood2018-08-10: Flood2018-08-10: Flood2018-08-10: Flood2018-06-20: Flood2018-06-20: Flood2018-06-20: Flood2018-06-10: Flood2018-06-10: Flood2018-06-10: Flood2018-06-10: Flood2018-06-10: Flood2018-06-10: Flood2018-06-10: Flood2018-06-08: Flood2018-06-08: Flood2018-04-16: Flood2018-02-16: Flood2018-02-15: Flood2018-02-15: Flood2018-01-12: Flood2018-01-12: Flood2018-01-12: Flood2018-01-12: Flood2018-01-12: Flood2017-07-29: Flood2017-07-28: Flood2017-07-28: Flood2017-07-28: Flood2017-07-28: Flood2017-07-28: Flood2017-07-28: Flood2017-07-23: Flood2017-07-23: Flood2017-07-23: Flood2017-07-06: Flood2017-06-23: Flood2017-06-23: Flood2017-06-14: Flood2017-06-14: Flood2017-03-01: Flood2017-03-01: Flood2016-12-18: Flood2016-08-28: Flood2016-07-30: Flood2016-07-30: Flood2015-07-06: Flood2015-03-04: Flood2014-05-27: Flood2013-08-23: Flood2013-08-23: Flood2013-08-23: Flood2013-08-23: Flood2026-06-22: Wind2026-06-14: Wind2026-06-11: Wind2026-06-06: Wind2026-06-06: Wind2026-06-06: Wind2026-06-06: Wind2026-06-06: Wind2026-06-06: Wind2026-06-06: Wind2026-06-06: Wind2026-06-06: Wind2026-06-06: Wind2026-06-06: Wind2026-03-07: Wind2026-03-07: Wind2025-06-28: Wind2025-06-28: Wind2025-06-26: Wind2025-06-26: Wind2025-06-26: Wind2025-06-25: Wind2025-06-25: Wind2025-05-21: Wind2025-05-21: Wind2025-05-17: Wind2025-05-02: Wind2025-04-29: Wind2025-04-29: Wind2025-04-29: Wind2025-04-29: Wind2025-04-29: Wind2025-04-29: Wind2025-04-29: Wind2025-04-29: Wind2025-04-29: Wind2025-04-29: Wind2025-04-29: Wind2025-04-19: Wind2025-03-16: Wind2025-03-16: Wind2024-11-20: Wind2024-11-20: Wind2024-11-20: Wind2024-11-20: Wind2024-11-20: Wind2024-09-21: Wind2024-08-29: Wind2024-08-29: Wind2024-08-29: Wind2024-08-17: Wind2024-08-17: Wind2024-08-17: Wind2024-08-06: Wind2024-06-18: Wind2024-06-18: Wind2024-05-26: Wind2024-05-26: Wind2024-05-26: Wind2024-05-25: Wind2024-05-25: Wind2024-05-25: Wind2024-05-11: Wind2023-08-25: Wind2023-08-25: Wind2023-08-25: Wind2023-08-25: Wind2023-08-25: Wind2023-08-25: Wind2023-08-25: Wind2023-08-25: Wind2023-08-25: Wind2023-08-25: Wind2023-08-12: Wind2023-08-12: Wind2023-08-12: Wind2023-08-12: Wind2023-08-12: Wind2023-08-12: Wind2023-08-12: Wind2023-07-20: Wind2023-07-13: Wind2023-07-13: Wind2023-07-13: Wind2023-07-13: Wind2023-06-26: Wind2023-06-26: Wind2023-06-26: Wind2023-06-03: Wind2023-06-03: Wind2023-04-01: Wind2023-04-01: Wind2023-04-01: Wind2023-04-01: Wind2022-11-27: Wind2022-11-27: Wind2022-11-27: Wind2022-09-21: Wind2022-08-01: Wind2022-08-01: Wind2022-08-01: Wind2022-08-01: Wind2022-07-24: Wind2022-07-23: Wind2022-07-23: Wind2022-07-23: Wind2022-07-23: Wind2022-06-14: Wind2022-05-03: Wind2022-05-03: Wind2022-05-03: Wind2022-05-03: Wind
Washington County within Pennsylvania. Dots: HailTornadoFloodWind 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. NCEI storm records through 30 Jun 2026; OpenFEMA declarations refreshed 1 Oct 2026; NFIP claims as of 8 Sep 2026.

The NCEI record lists 1,176 events for Washington County, Pennsylvania, between 1950 and 2026; damaging wind account for the largest share.

That is 137.2 events per 100 square miles, in line with the Pennsylvania figure of 121.6, and 56.1 per 10,000 residents against 42.0 statewide.

38 events fall in the 12 months to 30 Jun 2026. NCEI attributes 1 death and 16 injuries to events in the county, with property damage estimated at $30M and crop damage at $81K.

FEMA has designated the county in 14 federal disaster declarations since 1953; the most recent is Covid-19 Pandemic (major disaster, 30 Mar 2020).

National Flood Insurance Program policyholders in the county filed 1,131 claims since 1978, of which 899 were paid, totalling $21M (about $23K per paid claim). FEMA counts 468 residential flood policies in force.

FEMA's National Risk Index rates the county's overall risk as "Relatively Moderate" and its expected annual loss as "Relatively Moderate" ($57M a year across 18 hazards).

7 tropical storm or hurricane tracks in the HURDAT2 record passed within 100 miles of the county's centre at tropical-storm strength or more, 0 of them within 50 miles at hurricane strength.

38events, last 12 monthsto 30 Jun 2026
1,176events since 19501 death, 16 injuries recorded
14disaster declarationslast 30 Mar 2020
1,131NFIP flood claims$21M paid

Compared with Pennsylvania and the United States

MeasureWashington CountyPennsylvaniaUS
Recorded events since 19501,17654,4271,977,440
Events per 100 square miles137.2121.656.0
Events per 10,000 residents56.142.059.6
Events in the last 12 months382,02862,008
Deaths recorded by NCEI190126,435
Property damage (NCEI estimates)$30M$5.3B$575B
NFIP claims per 1,000 residents5.45.98.1
Average paid NFIP claim$23K$23K$43K
Claims per 100 policies in force, last 10 years63.725.916.1

County-recorded events plus zone-recorded events whose forecast zone is named for the county. State and US rows include events recorded only by forecast zone. Rates use 2021 Census population and land area.

Events by decade

Wind: 2
Hail: 6Tornado: 2Wind: 15
Hail: 6Tornado: 3Wind: 21
Hail: 15Tornado: 1Flood: 21Wind: 129Winter: 6Drought: 2Lightning: 5
Hail: 41Flood: 53Wind: 112Winter: 14Cold: 1Lightning: 1
Hail: 33Tornado: 4Flood: 86Wind: 226Winter: 15Cold: 7Lightning: 2Other: 3
Hail: 55Tornado: 15Flood: 55Wind: 179Winter: 32Cold: 3Drought: 3Other: 2
01950s21960s231970s301980s1791990s2222000s3762010s3442020s
Recorded events in Washington County by decade and hazard group. HailTornadoFloodWindWinterColdDroughtLightningOther NCEI recorded only tornadoes, hail and thunderstorm wind before 1996.

Trend: 753 events in the 20 years to 2025 against 360 in the 20 years before. Reporting practice changed in 1996 and again with automated reports in the 2000s, so decade totals measure the record as much as the weather.

Events by type

Wind684
Flood215
Hail156
Winter67
Tornado25
Cold11
Lightning8
Drought5
Other5
HazardEventsDeathsShare of state's events
■ Wind684—2.6%detail
■ Flood21513.0%detail
■ Hail156—2.8%detail
■ Winter67—0.7%detail
■ Tornado25—2.3%detail
■ Cold11—1.0%
■ Lightning8—1.4%
■ Drought5—0.6%
■ Other5—0.7%

Hazard pages exist for hail, tornado, flood, wind and winter where the county has at least 10 recorded events. "Other" covers heavy rain, debris flow, dust, funnel clouds and similar reports.

Largest recorded events

DateEvent typeGroupMagnitudeProperty damageCrop damageDeathsInjuriesGeography
19 May 1997Flash FloodFlood———1—County
27 Feb 2014Winter WeatherWinter————5Forecast zone
10 May 1973TornadoTornadoF1$25K——3County
9 Mar 1999Heavy SnowWinter————2Forecast zone
29 Jun 1987TornadoTornadoF1$250K——1County
16 Jun 1998Thunderstorm WindWind—$15K——1County
28 Jul 1997LightningLightning————1County
16 Jun 1998LightningLightning————1County
22 Jul 2011LightningLightning————1County
13 May 2018Thunderstorm WindWind58 mph———1County
21 Oct 2021TornadoTornadoEF2$7.5M———County
17 Sep 2004FloodFlood—$5.1M———Forecast zone
13 Jun 2002Flash FloodFlood—$3.0M———County
19 Feb 2000FloodFlood—$2.0M———Forecast zone
19 Jan 1996FloodFlood—$1.4M———Forecast zone
7 Aug 2000Flash FloodFlood—$500K———County
9 May 2002Flash FloodFlood—$500K———County
6 Jan 2005FloodFlood—$500K———Forecast zone
12 Aug 2023TornadoTornadoEF1$350K$10K——County
21 Oct 2021TornadoTornadoEF1$325K———County

Ranked by deaths, then injuries, then NCEI's damage estimate. Deaths and injuries are NCEI counts (direct plus indirect); no personal details are recorded here.

Federal disaster declarations

DeclaredNumberTypeIncidentTitlePrograms
30 Mar 2020DR-4506Major disasterBiologicalCovid-19 PandemicIndividual assistance, Public assistance
13 Mar 2020EM-3441EmergencyBiologicalCovid-19Public assistance
29 Oct 2012EM-3356EmergencyHurricaneHurricane SandyPublic assistance
10 Sep 2005EM-3235EmergencyHurricaneHurricane KatrinaPublic assistance
19 Sep 2004DR-1557Major disasterHurricaneTropical Depression IvanIndividual assistance, Public assistance
19 Sep 2004DR-1555Major disasterSevere StormSevere Storms And Flooding Associated With Tropical Depression FrancesIndividual assistance
14 Mar 2003EM-3180EmergencySevere StormSnowPublic assistance
21 Jan 1996DR-1093Major disasterFloodSevere Storms And FloodingIndividual assistance, Public assistance
13 Jan 1996DR-1085Major disasterSnowstormBlizzard Of 96Public assistance
10 Mar 1994DR-1015Major disasterSevere StormSevere Winter StormsPublic assistance
16 Mar 1993EM-3105EmergencySnowstormSevere Snowfall & Winter StormPublic assistance
9 Nov 1985DR-754Major disasterFloodSevere Storms & FloodingIndividual assistance, Public assistance
29 Jan 1977EM-3026EmergencySnowstormSnowstormsPublic assistance
23 Jun 1972DR-340Major disasterFloodTropical Storm AgnesIndividual assistance, Public assistance

Declarations in which FEMA designated this county, from the OpenFEMA Disaster Declarations Summaries (v2). DR: major disaster; EM: emergency; FM: fire management assistance. Programs show whether individual or public assistance was made available.

Flood insurance claims

197820022026
NFIP claims by year of loss in Washington County, 1978 to 2026 (hover for the amount paid).
Claims since 19781,131
Paid claims899
Total paid$21M
Average paid claim$23K
Repetitive-loss properties1149 severe
Residential policies in force4680.5% of 88,993 structures
Year of lossClaimsPaid claimsAmount paidAverage paid
202662$13,750$6,875
20251815$571,913$38,128
20248373$3,958,987$54,233
202244$44,676$11,169
20214436$885,081$24,586
202075$100,924$20,185
201933$40,943$13,648
20186758$2,806,051$48,380
20176656$3,432,181$61,289
201686$52,191$8,698
201551$29,271$29,271
201464$35,475$8,869
20132923$471,883$20,517
201210$0—
2011188$97,958$12,245
201043$19,503$6,501
200910$0—
200811$1,374$1,374
200776$71,595$11,932
200621$1,195$1,195
2005106$20,586$3,431
2004127113$3,432,068$30,372
20033425$227,469$9,099
200233$104,488$34,829
200133$11,078$3,693

OpenFEMA NFIP claims (v3, as of 8 Sep 2026), aggregated by year of loss; amounts are building, contents and increased-cost-of-compliance payments as recorded. Repetitive-loss counts from the NFIP Multiple Loss Properties file (2 Aug 2026); policies in force from the NFIP Residential Penetration Rates file (3 Aug 2026).

National Risk Index

Overall riskRelatively Moderatescore 83.1 of 100
Expected annual loss$57MRelatively Moderate
Social vulnerabilityRelatively Low
Community resilienceVery High
Hazard (NRI)Risk ratingExpected annual loss
Inland floodingRelatively Moderate$51,487,650
TornadoRelatively Low$1,420,372
LightningRelatively High$1,257,839
HailRelatively Moderate$1,176,128
EarthquakeVery Low$502,889
Strong windRelatively Low$408,408
Heat waveRelatively Low$387,669
HurricaneRelatively Low$235,920
Ice stormRelatively Low$136,193
LandslideRelatively Moderate$120,581
DroughtRelatively Low$118,236
Cold waveVery Low$64,849
WildfireVery Low$42,561
Winter weatherVery Low$19,426
AvalancheVery Low$14

FEMA National Risk Index, December 2025 release. Ratings are FEMA's relative comparison of counties; expected annual loss is FEMA's modelled estimate of average yearly building, population and agriculture loss. See how to read the NRI.

Hurricane and tropical storm passes

Tracks within 100 miles7
Tracks within 50 miles3
Hurricane strength within 50 miles0
StormYearClosest approachMax wind while within 100 mi
Sandy201242 mi46 mph
Isabel200348 mi40 mph
Frederic197963 mi40 mph
Audrey195765 mi46 mph
Unnamed Atlantic storm191524 mi40 mph
Unnamed Atlantic storm188883 mi52 mph
Unnamed Atlantic storm187895 mi58 mph

HURDAT2 best-track positions at tropical-storm strength (34 kt) or more, measured from the county's Census centre point; through the 2025 season. Distance from a track is not the same as the extent of the storm's wind, rain or surge.

ZIP codes with flood claims

ZIP codes whose NFIP claims carry this county's code, with the number of claims. Five or more claims are needed for a ZIP page to be indexed.

Questions and answers

How often does it hail in Washington County, PA?

NCEI records 156 hail events in Washington County since 1950, in 42 different years; that is about 2.0 recorded events a year. 27 reports were golf-ball size (1.75 in) or larger.

Has Washington County had a tornado?

Yes. NCEI records 25 tornadoes in Washington County since 1950, 4 of them rated (E)F2 or stronger. Tornado deaths recorded: 0.

When was the last federal disaster declaration for Washington County?

30 Mar 2020: Covid-19 Pandemic, a major disaster declaration for biological. The county appears in 14 declarations since 1953.

How many flood insurance claims have been filed in Washington County, and how much was paid?

1,131 NFIP claims since 1978, 899 of them paid, for $21M in total. FEMA publishes these figures redacted and aggregated; individual properties are not identified.

Is Washington County in the National Risk Index's high-risk band?

FEMA's National Risk Index (December 2025) rates the county "Relatively Moderate" for overall risk, "Relatively Moderate" for expected annual loss, "Relatively Low" for social vulnerability and "Very High" for community resilience. These ratings are FEMA's relative comparison across all US counties.

How does Washington County compare with the rest of Pennsylvania?

137.2 recorded events per 100 square miles against 121.6 statewide, and 5.4 NFIP claims per 1,000 residents against 5.9. The comparison table on this page shows each measure beside the state and national figures.

Provenance

Storm events: NOAA NCEI Storm Events Database, yearly details files through 30 Jun 2026 (public domain). Declarations: OpenFEMA DisasterDeclarationsSummaries v2, refreshed 1 Oct 2026. Flood claims: OpenFEMA NfipClaims v3 as of 8 Sep 2026; NfipMultipleLossProperties v1 (2 Aug 2026); NfipResidentialPenetrationRates v1 (3 Aug 2026). Risk index: FEMA National Risk Index, December 2025. Hurricane tracks: NHC HURDAT2 through 2025. Population and area: US Census Bureau, 2021 vintage. Built 1 Oct 2026; see the methodology and corrections pages. Hazard hubs: Hail · Tornado · Flood · Wind · Winter.