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Westmoreland County, Pennsylvania

Natural disaster risk, federal disaster history and flood insurance facts.

Relatively Moderate overall risk
15th of 67highest risk in Pennsylvania
$76Mexpected losses a year
18federal declarations
1 in 200homes with flood insurance
Photo: U.S. Geological Survey, public domain

Westmoreland County, Pennsylvania has a moderate overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 88% of US counties. It ranks 15th of 67 counties in Pennsylvania. The costliest hazards here are inland flooding, strong wind and lightning. FEMA estimates about $76 million a year in expected losses, or roughly $215 per resident. Since 1971 it has been included in 18 federal disaster or emergency declarations for natural events (12 major disasters). The most recent was in March 2016 (severe winter storm and snowstorm). Fewer than 1 in 100 homes here carry federal flood insurance (752 policies). Since 1978, federal flood insurance has paid about $22 million on 1,612 claims here.

FEMA National Risk Index December 2025; OpenFEMA declarations to Nov 6, 2026; NFIP records. Updated November 6, 2026.

Top risks in Westmoreland County

$65.9 million a yearExpected losses. Damaging events about 5 times a year.
  • Check the FEMA flood map for your address, and ask the seller or landlord about past flooding.
  • Price a flood policy now. Most new federal policies take 30 days to start.
$2.2 million a yearExpected losses. Damaging events about 2 times a year.
  • Secure outdoor furniture and trash bins before storms.
  • Have trees near the house checked.
$2.2 million a yearExpected losses. Damaging events about 42 times a year.
  • Go indoors when you hear thunder.
  • Use surge protectors for electronics.
HazardRatingScoreExpected loss a year
Inland floodingHigh93.8
$66M
Strong windHigh90.2
$2M
LightningHigh95.6
$2M
TornadoLow55.7
$2M
HailModerate85.8
$1M
EarthquakeLow73.8
$1M
Heat waveLow59.9
$622K
HurricaneLow69.0
$580K
Cold waveVery Low14.9
$164K
Ice stormModerate62.4
$162K
Winter weatherModerate70.4
$143K
LandslideModerate91.3
$72K
WildfireVery Low54.0
$64K
DroughtVery Low25.1
$13K
AvalancheVery Low44.0
$369

Scores are percentiles: a score of 90 means higher risk than about 90% of US counties for that hazard. Hazards FEMA does not rate here are left out. Social vulnerability is relatively low and community resilience is very high in FEMA's measures.

Federal disaster history

Recent disasters nationwide ›

Declarations by decade

Federal declarations for natural events that included Westmoreland County. 2020s bar runs to November 2026.

By type

Flood6
Snowstorm5
Severe Storm3
Hurricane3
Tornado1

Most recent

Mar 23, 2016Severe Winter Storm and SnowstormMajor disaster
Oct 29, 2012Hurricane SandyEmergency
Apr 16, 2010Severe Winter Storms and SnowstormsMajor disaster
Sep 10, 2005Hurricane KatrinaEmergency
Sep 19, 2004Severe Storms and Flooding Associated With Tropical Depression FrancesMajor disaster
Sep 19, 2004Tropical Depression IvanMajor disaster
Mar 14, 2003SnowEmergency
Jan 21, 1996Severe Storms and FloodingMajor disaster
Jan 13, 1996Blizzard of 96Major disaster
Mar 10, 1994Severe Winter StormsMajor disaster
Show all 18
Mar 16, 1993Severe Snowfall & Winter StormEmergency
Nov 9, 1985Severe Storms & FloodingMajor disaster
Aug 27, 1984Severe Storms & FloodingMajor disaster
Jun 13, 1980Severe Storms & TornadoesEmergency
Jul 21, 1977Severe Storms & FloodingMajor disaster
Jan 29, 1977SnowstormsEmergency
Jun 23, 1972Tropical Storm AgnesMajor disaster
Sep 18, 1971FloodsMajor disaster

Pennsylvania also had 7 statewide declarations that did not name single counties.

Storm history since 1954

Tornado risk by county ›

The National Weather Service has logged 1,756 storm reports in Westmoreland County since 1954, with 8 deaths and 78 injuries and about $295 million in reported damage. The strongest on record here was an F4 tornado on June 3, 1980.

52tornadoes
294hail reports, largest 2.5 inches
1,047damaging thunderstorm winds
330floods and flash floods

Strongest tornadoes

DateStrengthNearHurt / killed
Jun 3, 1980F4–0 / 0
Jul 11, 1976F3–17 / 1
Mar 23, 2011EF2Rillton0 / 0
May 22, 1983F2–6 / 0
May 22, 1983F2–4 / 0

Most damaging storms

DateTypeNearDamage
Jun 3, 1980Tornado–$250M
Jun 17, 2009Flash FloodMurrysville$9M
Mar 23, 2011TornadoRillton$4M
Jun 1, 2012TornadoOak Grove$3M
Jul 11, 1976Tornado–$3M
May 22, 1983Tornado–$3M

Source: NOAA Storm Events Database, county-based reports through Jul 27, 2026. Tornado records start in 1950, hail and wind in 1955, and floods and other storm types in 1996, so older decades undercount. Damage is in dollars of the year it happened and is often an estimate. Winter storms, heat and hurricanes are logged by forecast zone, not county, so they are not counted here.

Hurricanes and tropical storms

Hurricane risk by county ›

Since 1888, 0 hurricanes and 2 tropical storms have passed within 65 miles of the center of Westmoreland County, 1 of them since 1950. The strongest was an unnamed storm in 1888, with top winds near 50 mph about 42 miles away.

0hurricanes
0major hurricanes (Category 3+)
2tropical storms
1979most recent: Frederic

Strongest storms nearby

DateStormStrengthClosest
Aug 21, 1888UnnamedTropical storm, 50 mph42 mi
Sep 14, 1979FredericTropical storm, 40 mph43 mi

Most recent storms

DateStormStrengthClosest
Sep 14, 1979FredericTropical storm, 40 mph43 mi
Aug 21, 1888UnnamedTropical storm, 50 mph42 mi

Source: NOAA National Hurricane Center best-track records (HURDAT2), 1851 to 2025 for the Atlantic and 1949 to 2025 for the eastern Pacific. A storm counts if its track passed within 65 miles of the county's center while it was a tropical storm or hurricane. Strength is the storm's top sustained wind at that point, not the wind measured in the county. Older storms over the open sea were sometimes missed.

Flood insurance in Westmoreland County

Check your address flood zone ›
0.5%of homes have federal flood insurance (752 policies)
20.8%of homes in mapped high-risk flood zones are insured
$21.6 millionpaid on 1,612 flood claims since 1978
2009costliest year, with $4.2 million paid

National Flood Insurance Program (NFIP) records only; private flood policies are not included. Home counts as of Aug 3, 2026. Since 2021 NFIP prices each home separately under Risk Rating 2.0, so your price depends on the building, not the county. Ask an agent for a quote.

Homes in Westmoreland County

$203,500median home value (Pennsylvania $254,500, US $332,700)
1964median year homes were built (Pennsylvania 1965, US 1980)
71%of homes built before 1980, before many modern wind, quake and flood building rules
5.1%of homes are mobile homes, which are the least safe in tornadoes and high winds

Older homes and mobile homes usually suffer more damage in storms, floods and earthquakes, and can cost more to insure. If you are buying, ask about roof age, foundation bolting and any retrofits. Source: US Census Bureau, American Community Survey 2020 to 2024 5-year estimates; 168,812 housing units.

Compare in Pennsylvania

All 67 ›
Largest countiesOverall riskTop hazard
Philadelphia CountyVery HighInland flooding
Allegheny CountyHighInland flooding
Montgomery CountyHighInland flooding
Bucks CountyHighInland flooding
Delaware CountyModerateInland flooding
Lancaster CountyHighInland flooding
Chester CountyModerateInland flooding
York CountyModerateInland flooding

Neighboring counties

CountyOverall riskDeclarations
Allegheny CountyHigh16
Washington CountyModerate12
Butler CountyLow9
Cambria CountyLow16
Fayette CountyModerate16
Indiana CountyLow16
Somerset CountyLow19
Armstrong CountyLow15

Common questions about Westmoreland County

What is the biggest natural hazard in Westmoreland County?

Inland flooding has the highest expected yearly losses in Westmoreland County, about $65.9 million a year in FEMA's estimate. Strong wind is second at $2.2 million.

How many federal disasters has Westmoreland County had?

Westmoreland County has been included in 18 federal disaster or emergency declarations for natural events since 1971, including 12 major disasters. The most recent was Severe Winter Storm and Snowstorm in March 2016.

Is Westmoreland County a high-risk place to live?

Its overall rating is Relatively Moderate, 15th highest of 67 in Pennsylvania. A county rating covers the whole area. Risk at one address can be much higher or lower, so check the FEMA flood map and ask about the home's history.

Do I need flood insurance in Westmoreland County?

Standard home insurance does not cover flooding. About 1 in 200 homes in Westmoreland County has federal flood insurance. Lenders require it in mapped high-risk zones, but many flood claims come from outside those zones.

How many tornadoes has Westmoreland County had?

NOAA records list 52 tornadoes in Westmoreland County since 1950. The strongest was an F4 tornado on June 3, 1980. The weather service has also logged 294 hail reports and 330 floods here.

How many hurricanes have hit Westmoreland County?

NOAA's hurricane records show 0 hurricanes and 2 tropical storms passing within 65 miles of the center of Westmoreland County. The strongest was an unnamed storm in 1888, with winds near 50 mph.

Sources: FEMA National Risk Index (December 2025), OpenFEMA Disaster Declarations Summaries, and NFIP policy and claims data. Hazard Compass is independent and not affiliated with FEMA. These figures describe the whole county, not a single property, and are not insurance or safety advice. Report a problem.