Madison County, Virginia · Madison
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Pipes freeze in Madison County on about 18 nights a year, mostly November to March. Older homes, 24% of the stock here, are most at risk.
Heavy rain days of an inch or more come about 10.5 times a year here, most often in September. A sump pump that hasn't run since last season is a common weak point.
Backups often follow heavy rain, which Madison County gets about 10.5 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 84 freeze-thaw days a year, from winter ice dams. Most show up as ceiling stains in the room below.
36% of occupied homes in Madison County heat mainly with wood or propane, above the Virginia county median of 11.9%.
With 44 muggy nights a year, mold in Madison County can appear within days of a leak. Dry first, then clean.
Local risk profile
About 14,044 people live in Madison County, 321 square miles in northern Virginia, in roughly 6,140 homes. Madison is the county seat; Brightwood is the next largest community. The county's median home was built in 1980.
61/100 Water Damage Risk Index: Elevated Madison County ranks 18 of 95 Virginia counties. See the statewide ranking and method.The three factors where Madison County ranks highest compared with other Virginia counties.
Madison is on the colder side of Virginia for pipes. From 2015–2024 it averaged 18 nights a year at 20°F or colder, the range where pipes in exterior walls, crawl spaces and unheated garages freeze, and 92 nights at or below 32°F. That ranks 28th of 95 counties.
On January 7, 2018 the low fell to about -1°F, and in the stretch ending January 2018 the county went 9 days in a row below freezing. Leaks from split pipes typically appear the day the thaw arrives.
Expect the hardest freezes in January, inside a season that runs November to March. That's when an outdoor spigot left connected to a hose, or a pipe in a crawl space, is most likely to split.
On average the first fall freeze arrives around Nov 1 and the last spring freeze around Apr 12.
Rainfall is about average for Virginia. The county gets about 45.2 inches of rain and melted snow a year, with 10.5 days of an inch or more (35th of 95). Those downpours cluster in June, September and October, when sump pumps and gutters are tested hardest. The wettest day on record brought 3.94 inches on August 9, 2024. Multi-day storms matter most for basements; the wettest three days on record here totaled 4.46 inches (through May 19, 2018).
About 84 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
Virginia's 95 counties range widely in housing age; Madison ranks 27th, with 50% of its homes built before 1980.
Housing age is mixed: 24% of homes are pre-1960 and 24% are 2000 or newer. Ask any plumber which era your house is from and you'll know which failures to watch for.
About 26% of homes went up between 1980 and 1999. Some houses from the late 1970s to the mid-1990s were plumbed with polybutylene, a gray plastic pipe known for failing at fittings. A plumber can tell you in a few minutes whether you have it.
Beyond water
Madison County averages 44 warm, muggy nights a year (lows of 65°F or more) and gets the most rain in August. 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 Madison County it's 2% utility gas, 54% electric, 14% propane and 22% wood. Wood and propane heat are 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 Madison County. The largest communities by population:
Population from ACS 2020-2024 5-year estimates. Townships and unincorporated areas are covered too.
Nearby
Page and Rappahannock get more pipe-freeze nights than Madison. Page County has the oldest housing nearby, with 60% of homes built before 1980.
By the numbers
| Factor | Madison | Virginia median | Rank |
|---|---|---|---|
| Homes built before 1960 | 24% | 20% | 35 of 95 |
| Homes built before 1980 | 50% | 46% | 27 of 95 |
| Homes built 2000 or later | 24% | 25% | 55 of 95 |
| Manufactured or mobile homes | 2.9% | 9.6% | 77 of 95 |
| Vacant homes | 11% | 15% | 62 of 95 |
| Wood or propane heat | 36% | 12% | 3 of 95 |
| Nights at 20°F or colder | 18/yr | 14/yr | 28 of 95 |
| Days with 1 inch+ of rain | 11/yr | 10/yr | 35 of 95 |
| Freeze-thaw days | 84/yr | 77/yr | 28 of 95 |
| Muggy nights (65°F+) | 44/yr | 64/yr | 64 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 Madison 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