County Hazards

States › Pennsylvania › Franklin County

Franklin 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 42055 · 156,289 residents (2021) · 772 sq mi · dominant hazard Wind

Hail · 87Tornado · 15Flood · 60Wind · 336Winter · 70
1965-08-26: Hail1969-07-12: Hail1976-06-29: Hail1991-05-06: Hail1991-07-05: Hail1991-09-17: Hail1996-06-04: Hail1996-06-04: Hail1997-08-05: Hail1997-06-18: Hail1998-05-31: Hail1998-05-31: Hail1999-03-03: Hail2000-05-24: Hail2000-05-13: Hail2000-07-14: Hail2002-04-19: Hail2002-06-27: Hail2004-06-01: Hail2004-08-20: Hail2004-08-20: Hail2005-04-23: Hail2005-06-06: Hail2005-06-06: Hail2006-07-18: Hail2006-07-18: Hail2006-07-18: Hail2006-07-18: Hail2006-07-18: Hail2007-05-27: Hail2007-07-29: Hail2007-06-19: Hail2007-05-10: Hail2007-05-10: Hail2008-08-10: Hail2008-08-10: Hail2008-08-10: Hail2008-07-27: Hail2008-06-10: Hail2008-08-10: Hail2009-06-09: Hail2009-06-13: Hail2009-06-09: Hail2009-06-09: Hail2009-07-24: Hail2009-07-11: Hail2009-07-11: Hail2009-07-11: Hail2010-05-14: Hail2011-05-26: Hail2011-05-26: Hail2011-05-26: Hail2011-05-26: Hail2011-05-26: Hail2011-05-26: Hail2011-05-26: Hail2011-05-26: Hail2011-05-26: Hail2011-05-26: Hail2011-05-27: Hail2012-06-29: Hail2012-05-29: Hail2012-04-26: Hail2012-04-26: Hail2012-04-26: Hail2012-08-03: Hail2013-08-07: Hail2013-05-22: Hail2015-08-04: Hail2018-08-17: Hail2018-07-27: Hail2019-05-19: Hail2019-05-19: Hail2019-05-19: Hail2019-05-19: Hail2020-08-01: Hail2020-08-01: Hail2020-06-04: Hail2022-05-15: Hail2022-07-12: Hail2023-08-07: Hail2023-08-07: Hail2023-09-07: Hail1974-07-29: Tornado1976-03-21: Tornado1989-06-20: Tornado1992-06-19: Tornado1996-07-19: Tornado1996-07-30: Tornado2004-09-17: Tornado2004-09-17: Tornado2004-09-17: Tornado2011-05-26: Tornado2012-08-26: Tornado2019-04-19: Tornado2022-05-27: Tornado2005-07-16: Flood2007-06-01: Flood2007-05-10: Flood2008-05-12: Flood2008-04-26: Flood2009-06-10: Flood2009-07-23: Flood2010-01-25: Flood2010-03-13: Flood2010-05-23: Flood2011-09-27: Flood2011-04-28: Flood2011-04-16: Flood2011-09-09: Flood2011-05-26: Flood2012-10-29: Flood2013-10-10: Flood2014-06-12: Flood2014-06-12: Flood2014-05-16: Flood2015-06-08: Flood2017-07-28: Flood2019-05-19: Flood2019-05-19: Flood2024-01-09: Flood2025-05-13: Flood2025-08-16: Flood2025-07-14: Flood2026-06-14: Wind2026-06-14: Wind2026-06-14: Wind2026-06-14: Wind2026-06-11: Wind2026-06-11: Wind2026-06-11: Wind2026-06-06: Wind2026-06-06: Wind2026-06-06: Wind2026-05-20: Wind2026-05-20: Wind2026-05-20: Wind2026-04-14: Wind2025-05-16: Wind2025-04-19: Wind2025-04-19: Wind2025-04-19: Wind2025-04-19: Wind2024-07-10: Wind2023-08-07: Wind2023-08-07: Wind2023-08-07: Wind2023-08-04: Wind2023-07-28: Wind2023-06-26: Wind2022-07-12: Wind2022-07-12: Wind2022-06-22: Wind2022-05-15: Wind2022-03-31: Wind2021-09-09: Wind2021-08-18: Wind2021-08-18: Wind2021-08-13: Wind2021-08-13: Wind2021-08-13: Wind2021-07-08: Wind2021-07-07: Wind2021-06-21: Wind2021-06-21: Wind2021-06-21: Wind2020-08-28: Wind2020-08-28: Wind2020-08-27: Wind2020-08-01: Wind2020-07-24: Wind2020-07-21: Wind2020-07-21: Wind2020-07-21: Wind2020-07-21: Wind2020-07-21: Wind2020-06-04: Wind2020-06-04: Wind2020-06-04: Wind2020-06-04: Wind2020-06-04: Wind2020-06-04: Wind2020-04-13: Wind2020-04-13: Wind2020-04-13: Wind2019-10-31: Wind2019-07-06: Wind2019-06-02: Wind2019-05-29: Wind2019-05-29: Wind2019-05-29: Wind2019-05-19: Wind2019-05-19: Wind2019-05-19: Wind2019-04-19: Wind2019-04-14: Wind2018-08-08: Wind2018-07-04: Wind2017-09-05: Wind2017-09-05: Wind2017-09-05: Wind2017-08-04: Wind2017-08-04: Wind2017-08-04: Wind2017-06-19: Wind2017-05-01: Wind2017-04-06: Wind2017-02-12: Wind2017-02-12: Wind2016-08-16: Wind2016-08-16: Wind2016-07-30: Wind2016-06-28: Wind2015-07-09: Wind2015-07-09: Wind2015-06-20: Wind2015-06-18: Wind2014-09-02: Wind2014-09-02: Wind2014-07-23: Wind2014-07-13: Wind2014-07-08: Wind2014-07-08: Wind2014-07-08: Wind2014-07-01: Wind2013-11-18: Wind2013-10-07: Wind2013-09-12: Wind2013-07-19: Wind2013-07-19: Wind2013-07-07: Wind2013-06-28: Wind2013-06-25: Wind2013-06-02: Wind2013-04-24: Wind2013-04-24: Wind2012-08-05: Wind2012-08-05: Wind2012-08-03: Wind
Franklin 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.

Between 1950 and 2026, NCEI recorded 597 storm events in Franklin County, Pennsylvania, led by damaging wind.

That is 77.3 events per 100 square miles, below the Pennsylvania figure of 121.6, and 38.2 per 10,000 residents against 42.0 statewide.

26 events fall in the 12 months to 30 Jun 2026. NCEI attributes 1 death and 5 injuries to events in the county, with property damage estimated at $3.5M and crop damage at $6K.

FEMA has designated the county in 20 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 188 claims since 1978, of which 129 were paid, totalling $1.1M (about $8K per paid claim). FEMA counts 213 residential flood policies in force.

FEMA's National Risk Index rates the county's overall risk as "Relatively Low" and its expected annual loss as "Relatively Low" ($38M a year across 18 hazards).

23 tropical storm or hurricane tracks in the HURDAT2 record passed within 100 miles of the county's centre at tropical-storm strength or more, 1 of them within 50 miles at hurricane strength.

26events, last 12 monthsto 30 Jun 2026
597events since 19501 death, 5 injuries recorded
20disaster declarationslast 30 Mar 2020
188NFIP flood claims$1.1M paid

Compared with Pennsylvania and the United States

MeasureFranklin CountyPennsylvaniaUS
Recorded events since 195059754,4271,977,440
Events per 100 square miles77.3121.656.0
Events per 10,000 residents38.242.059.6
Events in the last 12 months262,02862,008
Deaths recorded by NCEI190126,435
Property damage (NCEI estimates)$3.5M$5.3B$575B
NFIP claims per 1,000 residents1.25.98.1
Average paid NFIP claim$8K$23K$43K
Claims per 100 policies in force, last 10 years6.625.916.1

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

Hail: 2Wind: 3
Hail: 1Tornado: 2Wind: 16
Tornado: 1Wind: 21
Hail: 14Tornado: 5Flood: 19Wind: 70Winter: 11Drought: 4
Hail: 35Tornado: 3Flood: 20Wind: 67Winter: 27Tropical: 1Heat: 3Cold: 2Other: 2
Hail: 27Tornado: 3Flood: 17Wind: 97Winter: 21Heat: 2Cold: 2Other: 1
Hail: 8Tornado: 1Flood: 4Wind: 62Winter: 11Heat: 3Cold: 1Drought: 7Lightning: 1
01950s51960s191970s221980s1231990s1602000s1702010s982020s
Recorded events in Franklin County by decade and hazard group. HailTornadoFloodWindWinterTropicalHeatColdDroughtLightningOther NCEI recorded only tornadoes, hail and thunderstorm wind before 1996.

Trend: 318 events in the 20 years to 2025 against 224 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

Wind336
Hail87
Winter70
Flood60
Tornado15
Drought11
Heat8
Cold5
Other3
Tropical1
Lightning1
HazardEventsDeathsShare of state's events
■ Wind33611.3%detail
■ Hail87—1.6%detail
■ Winter70—0.8%detail
■ Flood60—0.9%detail
■ Tornado15—1.4%detail
■ Drought11—1.4%
■ Heat8—0.8%
■ Cold5—0.5%
■ Other3—0.4%
■ Tropical1—1.1%
■ Lightning1—0.2%

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
3 May 1997High WindWind58 mph——1—Forecast zone
30 Apr 1994TornadoTornadoF2$500K——2County
21 Jul 2020Thunderstorm WindWind96 mph$90K——1County
21 Jul 2020Thunderstorm WindWind60 mph$1K——1County
6 Jun 1994Thunderstorm WindWind0 mph$500——1County
18 Jun 1996Flash FloodFlood—$1.0M———County
19 Jan 1996Thunderstorm WindWind—$500K———County
19 Apr 2019TornadoTornadoEF2$100K———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
23 Mar 2016DR-4267Major disasterSnowstormSevere Winter Storm And SnowstormPublic assistance
10 Jan 2013DR-4099Major disasterHurricaneHurricane SandyPublic assistance
29 Oct 2012EM-3356EmergencyHurricaneHurricane SandyPublic assistance
8 Sep 2011EM-3340EmergencyFloodRemnants Of Tropical Storm LeePublic assistance
16 Apr 2010DR-1898Major disasterSnowstormSevere Winter Storms And SnowstormsPublic assistance
30 Jun 2006DR-1649Major disasterSevere StormSevere Storms, Flooding, And MudslidesIndividual assistance, Public 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 Frances—
14 Mar 2003EM-3180EmergencySevere StormSnowPublic assistance
18 Jun 1996DR-1120Major disasterFloodFlooding, Severe StormsIndividual assistance
21 Jan 1996DR-1093Major disasterFloodSevere Storms And FloodingIndividual 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
20 Oct 1976DR-523Major disasterFloodSevere Storms & FloodingIndividual assistance, Public assistance
26 Sep 1975DR-485Major disasterFloodSevere Storms, Heavy Rains & FloodingIndividual assistance, Public 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 Franklin County, 1978 to 2026 (hover for the amount paid).
Claims since 1978188
Paid claims129
Total paid$1.1M
Average paid claim$8K
Repetitive-loss properties61 severe
Residential policies in force2130.4% of 59,690 structures
Year of lossClaimsPaid claimsAmount paidAverage paid
202533$8,579$2,860
202211$6,568$6,568
202121$14,006$14,006
202021$6,196$6,196
201910$0—
201843$75,725$25,242
201710$0—
201521$3,254$3,254
201463$48,893$16,298
201242$20,546$10,273
201193$17,620$5,873
201063$22,187$7,396
200810$0—
20064034$553,795$16,288
200510$0—
200453$42,079$14,026
200331$2,651$2,651
19964427$164,005$6,074
199544$5,233$1,308
199411$2,898$2,898
199321$13,605$13,605
199010$0—
198921$797$797
198532$6,070$3,035
19842521$41,310$1,967

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 Lowscore 76.4 of 100
Expected annual loss$38MRelatively Low
Social vulnerabilityRelatively Low
Community resilienceRelatively High
Hazard (NRI)Risk ratingExpected annual loss
Inland floodingRelatively Moderate$26,023,390
HurricaneRelatively Moderate$4,390,864
Strong windRelatively Moderate$1,564,376
EarthquakeRelatively Low$1,226,994
TornadoRelatively Low$1,146,399
Heat waveRelatively Low$1,051,918
DroughtRelatively Moderate$928,482
HailRelatively Low$397,762
LightningRelatively Moderate$359,901
Cold waveVery Low$252,175
Winter weatherRelatively Moderate$237,399
WildfireVery Low$53,662
Ice stormRelatively Low$46,272
LandslideRelatively Low$9,988
AvalancheVery Low$505

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 miles23
Tracks within 50 miles8
Hurricane strength within 50 miles1
StormYearClosest approachMax wind while within 100 mi
Sandy201213 mi63 mph
Ernesto200654 mi46 mph
Danielle199299 mi40 mph
David197965 mi46 mph
Connie195543 mi58 mph
Diane195549 mi46 mph
Hazel195434 mi81 mph
Able195244 mi58 mph
Unnamed Atlantic storm194985 mi58 mph
Unnamed Atlantic storm194357 mi40 mph
Unnamed Atlantic storm193458 mi46 mph
Unnamed Atlantic storm193360 mi63 mph
Unnamed Atlantic storm192976 mi58 mph
Unnamed Atlantic storm192821 mi46 mph
Unnamed Atlantic storm191585 mi46 mph
Unnamed Atlantic storm189651 mi69 mph
Unnamed Atlantic storm189393 mi63 mph
Unnamed Atlantic storm189387 mi75 mph
Unnamed Atlantic storm189315 mi40 mph
Unnamed Atlantic storm188880 mi46 mph
Unnamed Atlantic storm188541 mi46 mph
Unnamed Atlantic storm187870 mi92 mph
Unnamed Atlantic storm187663 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 Franklin County, PA?

NCEI records 87 hail events in Franklin County since 1950, in 27 different years; that is about 1.1 recorded events a year. 6 reports were golf-ball size (1.75 in) or larger.

Has Franklin County had a tornado?

Yes. NCEI records 15 tornadoes in Franklin County since 1950, 2 of them rated (E)F2 or stronger. Tornado deaths recorded: 0.

When was the last federal disaster declaration for Franklin County?

30 Mar 2020: Covid-19 Pandemic, a major disaster declaration for biological. The county appears in 20 declarations since 1953.

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

188 NFIP claims since 1978, 129 of them paid, for $1.1M in total. FEMA publishes these figures redacted and aggregated; individual properties are not identified.

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

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

How does Franklin County compare with the rest of Pennsylvania?

77.3 recorded events per 100 square miles against 121.6 statewide, and 1.2 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.