Fayette County, Pennsylvania · Uniontown
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Pipes freeze in Fayette County on about 34 nights a year, mostly November to March. Older homes, 51% of the stock here, are most at risk.
Basements flood here mostly in June. Fayette County averages 6.9 days a year with an inch of rain or more.
Sewage backups in Fayette County spike on heavy-rain days, about 6.9 a year, when sewer mains fill up and water finds the lowest drain.
Roof leaks here come from summer downpours and, with about 96 freeze-thaw days a year, from winter ice dams. Most show up as ceiling stains in the room below.
8% of occupied homes in Fayette County heat mainly with wood or propane, below the Pennsylvania county median of 10%.
With 16 muggy nights a year, mold in Fayette County can appear within days of a leak. Dry first, then clean.
Local risk profile
Fayette County covers 791 square miles of southwest Pennsylvania, with about 125,997 residents and 62,158 homes. Uniontown is the county seat; Connellsville, Masontown and Leith-Hatfield are the next largest communities. It has some of the oldest housing in the state: the median home went up in 1959.
56/100 Water Damage Risk Index: Elevated Fayette County ranks 20 of 67 Pennsylvania counties. See the statewide ranking and method.The three factors where Fayette County ranks highest compared with other Pennsylvania counties.
Pipe-freeze risk in Fayette County sits near the middle of the state. From 2015–2024 it averaged 34 nights a year at 20°F or colder, the range where pipes in exterior walls, crawl spaces and unheated garages freeze, and 119 nights at or below 32°F. That ranks 40th of 67 counties.
On January 7, 2018 the low fell to about -8°F, and in the stretch ending January 2018 the county went 13 days in a row below freezing. Leaks from split pipes typically appear the day the thaw arrives.
The freeze season here runs November to March, with January the coldest. If you travel then, leave the thermostat at 55°F or above and open sink cabinets on outside walls.
Freezing nights typically start around Oct 24 and end around Apr 28.
Rainfall is about average for Pennsylvania. About 6.9 days a year bring an inch or more (36th of 67), most often in June, out of 50.1 inches of total precipitation. On September 10, 2018, 3.14 inches fell in a single day. The worst three-day stretch dropped 6.31 inches, ending September 11, 2018, the kind of soaking that overwhelms sump pumps and storm sewers.
About 96 days a year swing from below freezing at night to above freezing by day. Those freeze-thaw cycles feed ice dams on roofs, open cracks in foundations and driveways, and stress pipes that are already marginal.
Housing
Pennsylvania's 67 counties range widely in housing age; Fayette ranks 15th, with 74% of its homes built before 1980.
51% were built before 1960. Homes from that era often still have galvanized steel supply pipe, which rusts from the inside until it pinholes, and cast iron drains that crack with age. Slow leaks behind walls are a common start to water damage in these houses.
Manufactured and mobile homes make up 10% of the housing here. Water lines in the underbelly depend on intact skirting and working heat tape, and they're usually the first to freeze in a cold snap.
Beyond water
Summer nights that don't drop below 65°F, a good marker of humid air, come about 16 times a year here, close to the Pennsylvania county median of 16. Mold grows when indoor humidity stays above about 60%, the EPA's ceiling. A basement dehumidifier set to 50% and drying anything wet within 24 to 48 hours prevents most problems.
Mold remediation: what to expectHeating fuel matters for fire risk. In Fayette County it's 44% utility gas, 21% electric, 5% propane and 3% wood. Most homes here heat with gas or electricity, so cooking and electrical faults are the likelier fire sources. Even a contained kitchen fire can send soot through the ductwork to every room.
Fire and smoke cleanup: first stepsCoverage
Calls connect to restoration companies that work across Fayette County. The largest communities by population:
Population from ACS 2020-2024 5-year estimates. Townships and unincorporated areas are covered too.
Nearby
Somerset gets more pipe-freeze nights than Fayette. Its housing is the oldest in the area by share of homes built before 1980.
By the numbers
| Factor | Fayette | Pennsylvania median | Rank |
|---|---|---|---|
| Homes built before 1960 | 51% | 42% | 12 of 67 |
| Homes built before 1980 | 74% | 66% | 15 of 67 |
| Homes built 2000 or later | 9.5% | 13% | 56 of 67 |
| Manufactured or mobile homes | 10% | 6.6% | 15 of 67 |
| Vacant homes | 11% | 12% | 36 of 67 |
| Wood or propane heat | 7.8% | 10% | 47 of 67 |
| Nights at 20°F or colder | 34/yr | 37/yr | 40 of 67 |
| Days with 1 inch+ of rain | 6.9/yr | 7/yr | 36 of 67 |
| Freeze-thaw days | 96/yr | 98/yr | 40 of 67 |
| Muggy nights (65°F+) | 16/yr | 16/yr | 34 of 67 |
Rank 1 is the highest value. Bars run from the lowest to the highest Pennsylvania county; the tick marks the median; orange means higher water damage risk than the median, green means lower.
Questions
Peak risk months in Fayette County: freezing from November to March, heavy rain in June, September and October.
Sources: U.S. Census Bureau, ACS 2024 5-year estimates (2020-2024); weather from NOAA nClimGrid-Daily county averages (EpiNOAA), 2015–2024, averaged across the county; county boundaries from Census TIGER. Reviewed 2026-10-21. Methodology