Fayette County, Ohio · Washington Court House
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Pipes freeze in Fayette County on about 30 nights a year, mostly November to March. Older homes, 37% of the stock here, are most at risk.
Basements flood here mostly in March. Fayette County averages 6.1 days a year with an inch of rain or more.
Sewage backups in Fayette County spike on heavy-rain days, about 6.1 a year, when sewer mains fill up and water finds the lowest drain.
Roof leaks here come from summer downpours and, with about 82 freeze-thaw days a year, from winter ice dams. Most show up as ceiling stains in the room below.
13% of occupied homes in Fayette County heat mainly with wood or propane, below the Ohio county median of 15.9%.
With 38 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 406 square miles of southwest Ohio, with about 28,876 residents and 12,725 homes. Washington Court House is the county seat; Jeffersonville, Bloomingburg and Good Hope are the next largest communities. Half the homes here were built before 1971, half after.
55/100 Water Damage Risk Index: Elevated Fayette County ranks 31 of 88 Ohio counties. See the statewide ranking and method.The three factors where Fayette County ranks highest compared with other Ohio counties.
Pipe-freeze risk in Fayette County sits near the middle of the state. From 2015–2024 it averaged 30 nights a year at 20°F or colder, the range where pipes in exterior walls, crawl spaces and unheated garages freeze, and 104 nights at or below 32°F. That ranks 49th of 88 counties.
On February 25, 2015 the low fell to about -11°F, and in the stretch ending February 2021 the county went 15 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 27 and end around Apr 21.
Rainfall is about average for Ohio. About 6.1 days a year bring an inch or more (32nd of 88), most often in March, out of 43.2 inches of total precipitation. On June 24, 2017, 2.96 inches fell in a single day. The worst three-day stretch dropped 3.76 inches, ending September 29, 2024, the kind of soaking that overwhelms sump pumps and storm sewers.
About 82 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
Ohio's 88 counties range widely in housing age; Fayette ranks 31st, with 66% of its homes built before 1980.
The mix runs from 37% built before 1960 to 15% built since 2000, so older neighborhoods bring aging pipe while newer subdivisions bring failed appliance lines and water heaters.
Renters occupy 35% of homes. If you rent, the building is usually the landlord's to repair, but your belongings are only covered by renters insurance.
Beyond water
Summer nights that don't drop below 65°F, a good marker of humid air, come about 38 times a year here, close to the Ohio county median of 35. 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 40% utility gas, 41% electric, 12% propane and 2% 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
Madison 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 | Ohio median | Rank |
|---|---|---|---|
| Homes built before 1960 | 37% | 37% | 41 of 88 |
| Homes built before 1980 | 66% | 61% | 31 of 88 |
| Homes built 2000 or later | 15% | 17% | 49 of 88 |
| Manufactured or mobile homes | 3.3% | 5.9% | 67 of 88 |
| Vacant homes | 9% | 8.4% | 37 of 88 |
| Wood or propane heat | 13% | 16% | 51 of 88 |
| Nights at 20°F or colder | 30/yr | 31/yr | 49 of 88 |
| Days with 1 inch+ of rain | 6.1/yr | 5.7/yr | 32 of 88 |
| Freeze-thaw days | 82/yr | 82/yr | 44 of 88 |
| Muggy nights (65°F+) | 38/yr | 35/yr | 28 of 88 |
Rank 1 is the highest value. Bars run from the lowest to the highest Ohio 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 February, March and May.
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