Warren County, North Carolina · Warrenton
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Pipes freeze in Warren County on about 8 nights a year, mostly December to February. Older homes, 14% of the stock here, are most at risk.
Basements flood here mostly in September. Warren County averages 11.1 days a year with an inch of rain or more.
Sewage backups in Warren County spike on heavy-rain days, about 11.1 a year, when sewer mains fill up and water finds the lowest drain.
Warren County's wettest day in the 2015–2024 record brought 5.92 inches, and about 66 freeze-thaw days a year mean ice dams in some winters.
18% of occupied homes in Warren County heat mainly with wood or propane, above the North Carolina county median of 11.7%.
About 83 nights a year here stay at 65°F or warmer, so basements and crawl spaces can grow mold even without a leak.
Local risk profile
With 11,723 homes and around 18,795 residents, Warren County is 429 square miles of northeast North Carolina. Besides Warrenton, the county seat, the biggest communities are Norlina and Macon. Much of its housing is recent, with a median build year of 1988.
48/100 Water Damage Risk Index: Elevated Warren County ranks 58 of 100 North Carolina counties. See the statewide ranking and method.The three factors where Warren County ranks highest compared with other North Carolina counties.
Warren is on the colder side of North Carolina for pipes. In the 2015–2024 record the county logged about 8 nights a year at or below 20°F (28th of 100) and 68 below freezing. Twenty degrees is roughly where uninsulated pipes start to freeze.
The longest cold spell was straight 3 days without the temperature rising above freezing, ending in January 2018. The coldest night reached about 1°F on January 7, 2018. Burst pipes usually show up when a spell like that breaks and the ice thaws.
The freeze season here runs December to February, 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 Nov 10 and the last spring freeze around Mar 29.
Rainfall is about average for North Carolina. About 11.1 days a year bring an inch or more (60th of 100), most often in September, out of 50.2 inches of total precipitation. On October 9, 2016, 5.92 inches fell in a single day. Multi-day storms matter most for basements; the wettest three days on record here totaled 7.04 inches (through October 9, 2016).
The temperature crosses 32°F in both directions on roughly 66 days a year. Each cycle melts and refreezes water at roof edges and in foundation cracks, which is how ice dams and basement seepage get started.
Housing
34% of homes in Warren County predate 1980, below the North Carolina county median of 41.2%, which ranks 73rd of North Carolina's 100 counties.
Housing age is mixed: 14% of homes are pre-1960 and 26% are 2000 or newer. Ask any plumber which era your house is from and you'll know which failures to watch for.
40% date from 1980 to 1999, the window when polybutylene, a gray flexible plastic supply pipe, was used in some homes. It's prone to leaks at the fittings, so it's worth checking for in a house from those years.
41% of homes are manufactured or mobile homes, above the North Carolina county median of 17.4%. Their water lines run under the floor behind the skirting, so a torn skirt or failed heat tape freezes them faster than lines in a site-built house.
With 31% of homes empty at survey time, landlords and seasonal owners should shut off the main or schedule checks in winter. An unheated vacant house is also where many policies limit freeze coverage.
Beyond water
About 83 nights a year in Warren County stay at 65°F or warmer, a sign of muggy summer air (55th of 100 counties). September is the wettest month. 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 Warren County it's 7% utility gas, 72% electric, 14% propane and 4% wood. Wood and propane heat are above the North Carolina norm. Annual chimney and vent inspection, which the NFPA recommends, is one of the most effective fire-prevention habits for these homes.
Fire and smoke cleanup: first stepsCoverage
Calls connect to restoration companies that work across Warren County. The largest communities by population:
Population from ACS 2020-2024 5-year estimates. Townships and unincorporated areas are covered too.
Nearby
Warren gets more pipe-freeze nights than any of its neighbors. Halifax County has the oldest housing nearby, with 51% of homes built before 1980.
By the numbers
| Factor | Warren | North Carolina median | Rank |
|---|---|---|---|
| Homes built before 1960 | 14% | 18% | 63 of 100 |
| Homes built before 1980 | 34% | 41% | 73 of 100 |
| Homes built 2000 or later | 26% | 26% | 52 of 100 |
| Manufactured or mobile homes | 41% | 17% | 1 of 100 |
| Vacant homes | 31% | 13% | 13 of 100 |
| Wood or propane heat | 18% | 12% | 32 of 100 |
| Nights at 20°F or colder | 8/yr | 5/yr | 28 of 100 |
| Days with 1 inch+ of rain | 11/yr | 12/yr | 60 of 100 |
| Freeze-thaw days | 66/yr | 57/yr | 31 of 100 |
| Muggy nights (65°F+) | 83/yr | 89/yr | 55 of 100 |
Rank 1 is the highest value. Bars run from the lowest to the highest North Carolina county; the tick marks the median; orange means higher water damage risk than the median, green means lower.
Questions
Peak risk months in Warren County: freezing from December to February, heavy rain in April, September and December.
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