Somerset County, Pennsylvania
Natural disaster risk, federal disaster history and flood insurance facts.
Somerset County, Pennsylvania has a relatively low overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 64% of US counties. It ranks 42nd of 67 counties in Pennsylvania. The costliest hazards here are inland flooding, hurricanes and strong wind. FEMA estimates about $22 million a year in expected losses, or roughly $296 per resident. Since 1972 it has been included in 19 federal disaster or emergency declarations for natural events (13 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 (257 policies). Since 1978, federal flood insurance has paid about $2.6 million on 395 claims here.
FEMA National Risk Index December 2025; OpenFEMA declarations to Nov 6, 2026; NFIP records. Updated November 6, 2026.
Top risks in Somerset County
- 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.
- Know your evacuation zone and route before June 1.
- Ask about roof age, shutters and the separate wind or hurricane deductible on your home policy.
- Secure outdoor furniture and trash bins before storms.
- Have trees near the house checked.
All 18 hazards
What the ratings mean ›| Hazard | Rating | Score | Expected loss a year | |
|---|---|---|---|---|
| Inland flooding | 80.0 | $18M | ||
| Hurricane | 73.2 | $721K | ||
| Strong wind | 62.3 | $715K | ||
| Lightning | 79.7 | $657K | ||
| Tornado | 35.5 | $631K | ||
| Hail | 62.1 | $377K | ||
| Earthquake | 54.2 | $315K | ||
| Winter weather | 75.2 | $154K | ||
| Drought | 50.8 | $141K | ||
| Cold wave | 11.7 | $95K | ||
| Heat wave | 20.3 | $58K | ||
| Ice storm | 29.9 | $29K | ||
| Wildfire | 40.8 | $25K | ||
| Landslide | 81.4 | $17K | ||
| Avalanche | 44.7 | $335 |
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 moderate 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 Somerset County. 2020s bar runs to November 2026.
By type
Most recent
Show all 19
Pennsylvania also had 7 statewide declarations that did not name single counties.
Storm history since 1951
Tornado risk by county ›The National Weather Service has logged 437 storm reports in Somerset County since 1951, with 4 deaths and 27 injuries and about $6.6 million in reported damage. The strongest on record here was an F3 tornado on May 31, 1998 near Salisbury.
Strongest tornadoes
| Date | Strength | Near | Hurt / killed |
|---|---|---|---|
| May 31, 1998 | F3 | Salisbury | 15 / 1 |
| Jun 2, 1998 | F3 | Bakersville | 0 / 0 |
| May 13, 1956 | F2 | – | 1 / 0 |
| Jul 18, 2026 | EF2 | Jennerstown | 0 / 0 |
| May 11, 1951 | F2 | – | 1 / 0 |
Most damaging storms
| Date | Type | Near | Damage |
|---|---|---|---|
| May 31, 1998 | Tornado | Salisbury | $4M |
| Jul 5, 2019 | Flash Flood | Listie | $1M |
| May 13, 1956 | Tornado | – | $250K |
| Apr 19, 2025 | Thunderstorm Wind | Addison | $120K |
| Jul 18, 2026 | Tornado | Jennerstown | $100K |
| Jun 8, 2022 | Thunderstorm Wind | Roberts | $60K |
Source: NOAA Storm Events Database, county-based reports through Jul 18, 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 1876, 0 hurricanes and 7 tropical storms have passed within 65 miles of the center of Somerset County, 3 of them since 1950. The strongest was an unnamed storm in 1893, with top winds near 70 mph about 58 miles away.
Strongest storms nearby
| Date | Storm | Strength | Closest |
|---|---|---|---|
| Oct 14, 1893 | Unnamed | Tropical storm, 70 mph | 58 mi |
| Sep 18, 1876 | Unnamed | Tropical storm, 60 mph | 63 mi |
| Sep 19, 2003 | Isabel | Tropical storm, 50 mph | 46 mi |
| Aug 21, 1888 | Unnamed | Tropical storm, 50 mph | 40 mi |
| Sep 6, 1979 | David | Tropical storm, 45 mph | 61 mi |
| Oct 23, 1893 | Unnamed | Tropical storm, 40 mph | 54 mi |
Most recent storms
| Date | Storm | Strength | Closest |
|---|---|---|---|
| Sep 19, 2003 | Isabel | Tropical storm, 50 mph | 46 mi |
| Sep 14, 1979 | Frederic | Tropical storm, 40 mph | 60 mi |
| Sep 6, 1979 | David | Tropical storm, 45 mph | 61 mi |
| Oct 23, 1893 | Unnamed | Tropical storm, 40 mph | 54 mi |
| Oct 14, 1893 | Unnamed | Tropical storm, 70 mph | 58 mi |
| Aug 21, 1888 | Unnamed | Tropical storm, 50 mph | 40 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 Somerset County
Check your address flood zone ›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 Somerset County
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; 37,863 housing units.
Compare in Pennsylvania
All 67 ›| Largest counties | Overall risk | Top hazard |
|---|---|---|
| Philadelphia County | Inland flooding | |
| Allegheny County | Inland flooding | |
| Montgomery County | Inland flooding | |
| Bucks County | Inland flooding | |
| Delaware County | Inland flooding | |
| Lancaster County | Inland flooding | |
| Chester County | Inland flooding | |
| York County | Inland flooding |
Neighboring counties
| County | Overall risk | Declarations |
|---|---|---|
| Westmoreland County | 18 | |
| Cambria County | 16 | |
| Fayette County | 16 | |
| Allegany County, MD | 15 | |
| Bedford County | 19 | |
| Garrett County, MD | 12 |
Common questions about Somerset County
What is the biggest natural hazard in Somerset County?
Inland flooding has the highest expected yearly losses in Somerset County, about $18 million a year in FEMA's estimate. Hurricane is second at $721,066.
How many federal disasters has Somerset County had?
Somerset County has been included in 19 federal disaster or emergency declarations for natural events since 1972, including 13 major disasters. The most recent was Severe Winter Storm and Snowstorm in March 2016.
Is Somerset County a high-risk place to live?
Its overall rating is Relatively Low, 42nd 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 Somerset County?
Standard home insurance does not cover flooding. About 1 in 111 homes in Somerset 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 Somerset County had?
NOAA records list 16 tornadoes in Somerset County since 1950. The strongest was an F3 tornado on May 31, 1998 near Salisbury. The weather service has also logged 36 hail reports and 79 floods here.
How many hurricanes have hit Somerset County?
NOAA's hurricane records show 0 hurricanes and 7 tropical storms passing within 65 miles of the center of Somerset County. The strongest was an unnamed storm in 1893, with winds near 70 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.