McDowell County, West Virginia · Welch
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Pipes freeze in McDowell County on about 22 nights a year, mostly November to March. Older homes, 52% of the stock here, are most at risk.
Heavy rain days of an inch or more come about 6.6 times a year here, most often in February. A sump pump that hasn't run since last season is a common weak point.
Backups often follow heavy rain, which McDowell County gets about 6.6 days a year, when storm water overloads sewer mains and pushes up through the lowest drain in the house.
Roof leaks here come from summer downpours and, with about 89 freeze-thaw days a year, from winter ice dams. Most show up as ceiling stains in the room below.
12% of occupied homes in McDowell County heat mainly with wood or propane, above the West Virginia county median of 10.1%.
With 20 muggy nights a year, mold in McDowell County can appear within days of a leak. Dry first, then clean.
Local risk profile
McDowell County covers 533 square miles of southwest West Virginia, with about 17,943 residents and 9,336 homes. Besides Welch, the county seat, the biggest communities are Gary, War and Crumpler. It has some of the oldest housing in the state: the median home went up in 1958.
49/100 Water Damage Risk Index: Elevated McDowell County ranks 30 of 55 West Virginia counties. See the statewide ranking and method.The three factors where McDowell County ranks highest compared with other West Virginia counties.
McDowell County is milder than most of West Virginia, but not mild enough to skip winterizing. It averaged 99 freezing nights a year over 2015–2024, 22 of them at 20°F or colder, cold enough for pipes in outside walls and crawl spaces to freeze. Among 55 West Virginia counties that's 42nd.
The longest cold spell was straight 8 days without the temperature rising above freezing, ending in January 2018. The coldest night reached about -11°F on February 20, 2015. Burst pipes usually show up when a spell like that breaks and the ice thaws.
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.
On average the first fall freeze arrives around Oct 27 and the last spring freeze around Apr 22.
Rainfall is about average for West Virginia. Of roughly 48.3 inches of yearly precipitation, the damage comes from the 6.6 days a year with an inch or more, ranked 34th of 55. February, April and May see the most. The single wettest day in the record: 2.75 inches, September 26, 2024. Multi-day storms matter most for basements; the wettest three days on record here totaled 5.19 inches (through September 28, 2024).
About 89 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
Roughly 76% of the county's housing was built before 1980. That puts McDowell among the oldest housing stocks of West Virginia's 55 counties.
In McDowell County 52% of homes are older than 1960. If yours is one of them and the plumbing has never been replaced, expect galvanized steel supply pipe and cast iron drain lines, the two materials most likely to fail quietly.
Here 23% of housing is manufactured homes. Check the skirting and the heat tape on the main water line every fall, because that one exposed line is what freezes.
The Census counted 31% of homes as vacant, above the West Virginia county median of 17.4%. Empty houses are where a small leak turns into a large claim, because nobody is there to hear it.
Beyond water
McDowell County averages 20 warm, muggy nights a year (lows of 65°F or more) and gets the most rain in May. Keep indoor humidity under 60%, as the EPA advises, and dry any leak within 24 to 48 hours; in a humid month a wet basement left alone won't dry by itself.
Mold remediation: what to expectHeating fuel matters for fire risk. In McDowell County it's 11% utility gas, 67% electric, 6% propane and 6% wood. Wood heat is more common here than the state median. Have chimneys swept and fuel-burning appliances serviced each fall, and keep three feet clear around stoves and space heaters.
Fire and smoke cleanup: first stepsCoverage
Calls connect to restoration companies that work across McDowell County. The largest communities by population:
Population from ACS 2020-2024 5-year estimates. Townships and unincorporated areas are covered too.
Nearby
Mercer gets more pipe-freeze nights than McDowell. Its housing is the oldest in the area by share of homes built before 1980.
By the numbers
| Factor | McDowell | West Virginia median | Rank |
|---|---|---|---|
| Homes built before 1960 | 52% | 31% | 3 of 55 |
| Homes built before 1980 | 76% | 55% | 3 of 55 |
| Homes built 2000 or later | 9.1% | 17% | 53 of 55 |
| Manufactured or mobile homes | 23% | 16% | 14 of 55 |
| Vacant homes | 31% | 17% | 6 of 55 |
| Wood or propane heat | 12% | 10% | 26 of 55 |
| Nights at 20°F or colder | 22/yr | 25/yr | 42 of 55 |
| Days with 1 inch+ of rain | 6.6/yr | 6.8/yr | 34 of 55 |
| Freeze-thaw days | 89/yr | 89/yr | 25 of 55 |
| Muggy nights (65°F+) | 20/yr | 27/yr | 37 of 55 |
Rank 1 is the highest value. Bars run from the lowest to the highest West Virginia county; the tick marks the median; orange means higher water damage risk than the median, green means lower.
Questions
Peak risk months in McDowell County: freezing from November to March, heavy rain in February, April 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