Severe Weather History


County archive · 1950 — present

Westmoreland County, Pennsylvania

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Westmoreland County, Pennsylvania severe weather history spans 1,707 recorded events between 1954 and 2026. The dominant hazard is thunderstorm wind, accounting for 59.3% of all recorded events. It ranks #24 nationally and #2 in Pennsylvania.

1,707

Recorded events

8

Direct deaths

78

Direct injuries

$295.1M

Property damage

The record

What the Westmoreland County, Pennsylvania severe weather history record shows

Across the archive, Westmoreland County, Pennsylvania severe weather history averages 23.7 recorded events a year. The busiest stretch on record is the 2010s, with 616 events logged in that decade alone. Roughly 127 events fall before 1990 and 1,580 from 1990 onward — a gap that reflects the expansion of NOAA reporting practice as much as the weather itself.

The deadliest hazard in the Westmoreland County, Pennsylvania record is thunderstorm wind, responsible for 3 direct deaths. The costliest is tornado, with $268.1M in reported property damage. In total, 8 distinct hazard types appear in this county archive, each listed with its own dated record below.

Westmoreland County, Pennsylvania severe weather history: recorded events per decade since 1950
Westmoreland County, Pennsylvania severe weather history: recorded events per decade since 1950

By hazard type

Every hazard type recorded in Westmoreland County

HazardEventsDeathsDamageMaxSpan
Thunderstorm Wind1,0133$10.1M951958–2026
Hail2910$1.2M2.51962–2025
Flash Flood2381$15.0M01996–2025
Flood840$550K02007–2024
Tornado491$268.1MF41954–2025
Heavy Rain180$002007–2022
Lightning133$113K01996–2024
Debris Flow10$002013–2013
Source: NOAA/NCEI Storm Events · dates UTC · preliminary data may revise

Decade by decade

Westmoreland County, Pennsylvania severe weather history by decade

41950s
111960s
441970s
681980s
2701990s
2752000s
6162010s
4192020s

Reporting practice changed over time — early decades are undercounted, not calmer.

Tornado tracks

Paths crossing this county

49 mapped tornado paths intersect this county: 37 touched down inside it and 12 crossed in from a neighbouring county. This comes from path geometry, not county-tagged reports.

DateScaleDeathsInjuriesPath lengthOrigin
1980-06-03EF4014011.8 miCrossed in
1976-07-11EF311711.8 miTouched down here
2024-06-26EF20010.8 miTouched down here
2018-10-02EF2001.6 miTouched down here
2011-03-23EF2009.0 miTouched down here
1997-08-15EF2023.5 miTouched down here
1983-05-22EF201038.0 miCrossed in
1980-06-03EF2004.9 miTouched down here
1980-05-12EF2002.2 miTouched down here
1975-06-04EF20045.3 miCrossed in
Source: NOAA SPC SVRGIS tornado tracks · path geometry intersected with county boundaries

Significant events

Deadliest events on record in Westmoreland County

DateTypeLocationDeathsInjuriesDamage
Jun 13, 2019LightningWELTYTOWN20$0
Jul 11, 1976Tornado117$2.5M
May 12, 2002Thunderstorm WindCOUNTYWIDE12$100K
Jun 20, 2001LightningLIGONIER12$0
May 18, 1987Thunderstorm Wind11$0
Mar 28, 2020Flash FloodRILLTON10$0
Jun 29, 2008Thunderstorm WindSOUTH GREENSBURG10$150K
Sep 28, 2019Thunderstorm WindMURRYSVILLE06$0
Source: NOAA/NCEI Storm Events · dates UTC

From the record

What the reports say

Written by National Weather Service staff at the time of the event · public domain

Context

Risk, population and federal disasters

Relatively Moderate

FEMA NRI risk rating

352,500

Population (ACS)

$204K

Median home value

20

Federal declarations

DeclaredIncidentTitleType
Mar 30, 2020BiologicalCOVID-19 PANDEMICDR
Mar 13, 2020BiologicalCOVID-19EM
Mar 23, 2016SnowstormSEVERE WINTER STORM AND SNOWSTORMDR
Oct 29, 2012HurricaneHURRICANE SANDYEM
Apr 16, 2010SnowstormSEVERE WINTER STORMS AND SNOWSTORMSDR
Sep 10, 2005HurricaneHURRICANE KATRINAEM
Source: FEMA OpenFEMA disaster declarations · most recent first

Within the county

Most affected places

  • Greensburg 126

Quick answers

Frequently asked

How many severe weather events have been recorded in Westmoreland County, Pennsylvania?

1,707 events are on record between 1954 and 2026, causing 8 direct deaths and $295.1M in property damage.

What is the most common severe weather hazard in Westmoreland County?

Thunderstorm Wind, with 1,013 recorded events — 59.3% of everything in the archive for this county.

How many tornadoes have crossed Westmoreland County?

49 mapped tornado paths intersect the county boundary; 37 of them touched down inside it. This is derived from path geometry, not county-tagged reports.

How many federal disaster declarations cover Westmoreland County?

20 federal disaster declarations from FEMA include Westmoreland County, each tied to a specific incident period.

How risky is Westmoreland County compared with the rest of the country?

FEMA's National Risk Index rates Westmoreland County as relatively moderate risk, placing it in the 88 percentile of its state for expected annual loss.

Where does the Westmoreland County, Pennsylvania severe weather history data come from?

Every figure is drawn from United States federal public-domain records: NOAA/NCEI Storm Events for the event archive, NOAA SPC SVRGIS for mapped tornado paths, FEMA for disaster declarations and risk ratings, and the U.S. Census for population context. Dates are shown in UTC and recent entries may still be revised by NOAA.

Nearby

Neighbouring counties

All counties in this state →

Cite this page

“Westmoreland County, Pennsylvania.” Severe Weather History. severeweatherhistory.com/county/pennsylvania/westmoreland-county/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.


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