Fauquier County, Virginia · Warrenton
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Pipes freeze in Fauquier County on about 17 nights a year, mostly December to March. Older homes, 18% of the stock here, are most at risk.
Basements flood here mostly in September. Fauquier County averages 8.8 days a year with an inch of rain or more.
18% of homes here predate 1960, when clay and cast iron sewer laterals were standard. Roots and cracks in those lines are a common cause of backups.
Fauquier County's wettest day in the 2015–2024 record brought 3.49 inches, and about 80 freeze-thaw days a year mean ice dams in some winters.
21% of occupied homes in Fauquier County heat mainly with wood or propane, above the Virginia county median of 11.9%.
With 55 muggy nights a year, mold in Fauquier County can appear within days of a leak. Dry first, then clean.
Local risk profile
With 28,621 homes and around 74,577 residents, Fauquier County is 648 square miles of northeast Virginia. Warrenton is the county seat; New Baltimore, Bealeton and Marshall are the next largest communities. Much of its housing is recent, with a median build year of 1987.
46/100 Water Damage Risk Index: Elevated Fauquier County ranks 63 of 95 Virginia counties. See the statewide ranking and method.The three factors where Fauquier County ranks highest compared with other Virginia counties.
Fauquier County gets more hard-freeze nights than most of Virginia. It averaged 86 freezing nights a year over 2015–2024, 17 of them at 20°F or colder, cold enough for pipes in outside walls and crawl spaces to freeze. Among 95 Virginia counties that's 31st.
Cold snaps are the real risk. The worst in the record lasted 7 days below freezing (ending January 2018), and the low bottomed out near 0°F on January 7, 2018.
The freeze season here runs December 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 Nov 6 and end around Apr 12.
Fauquier gets fewer downpours than most Virginia counties, but they still fill basements. The county gets about 42.4 inches of rain and melted snow a year, with 8.8 days of an inch or more (66th of 95). Those downpours cluster in June, August and September, when sump pumps and gutters are tested hardest. The wettest day on record brought 3.49 inches on August 9, 2024. The worst three-day stretch dropped 4.88 inches, ending August 10, 2024, the kind of soaking that overwhelms sump pumps and storm sewers.
The temperature crosses 32°F in both directions on roughly 80 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
Virginia's 95 counties range widely in housing age; Fauquier ranks 67th, with 35% of its homes built before 1980.
30% of homes were built in 2000 or later, more than in most of Virginia. Newer plumbing rarely corrodes, so damage here tends to come from appliance supply lines, water heaters, sump pumps and storms.
The 1980s and 1990s account for 35% of the county's homes. If yours is from those decades, look under the sinks and at the water heater for gray plastic pipe stamped PB, which is polybutylene and leak-prone.
Beyond water
Summer nights that don't drop below 65°F, a good marker of humid air, come about 55 times a year here, below the Virginia county median of 64. 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 Fauquier County it's 18% utility gas, 53% electric, 17% propane and 4% wood. Propane heat is more common here than in most Virginia counties. Heating equipment is one of the leading causes of home fires nationally, and the NFPA recommends having chimneys and vents inspected every year.
Fire and smoke cleanup: first stepsCoverage
Calls connect to restoration companies that work across Fauquier County. The largest communities by population:
Population from ACS 2020-2024 5-year estimates. Townships and unincorporated areas are covered too.
Nearby
Clarke, Rappahannock and Warren get more pipe-freeze nights than Fauquier. Clarke County has the oldest housing nearby, with 50% of homes built before 1980.
By the numbers
| Factor | Fauquier | Virginia median | Rank |
|---|---|---|---|
| Homes built before 1960 | 18% | 20% | 57 of 95 |
| Homes built before 1980 | 35% | 46% | 67 of 95 |
| Homes built 2000 or later | 30% | 25% | 33 of 95 |
| Manufactured or mobile homes | 1.6% | 9.6% | 84 of 95 |
| Vacant homes | 6.6% | 15% | 76 of 95 |
| Wood or propane heat | 21% | 12% | 18 of 95 |
| Nights at 20°F or colder | 17/yr | 14/yr | 31 of 95 |
| Days with 1 inch+ of rain | 8.8/yr | 10/yr | 66 of 95 |
| Freeze-thaw days | 80/yr | 77/yr | 34 of 95 |
| Muggy nights (65°F+) | 55/yr | 64/yr | 57 of 95 |
Rank 1 is the highest value. Bars run from the lowest to the highest Virginia county; the tick marks the median; orange means higher water damage risk than the median, green means lower.
Questions
Peak risk months in Fauquier County: freezing from December to March, heavy rain in June, August and September.
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