Warrick County, Indiana · Boonville
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Pipes freeze in Warrick County on about 20 nights a year, mostly December to February. Older homes, 19% of the stock here, are most at risk.
Basements flood here mostly in March. Warrick County averages 13.1 days a year with an inch of rain or more.
Sewage backups in Warrick County spike on heavy-rain days, about 13.1 a year, when sewer mains fill up and water finds the lowest drain.
Warrick County's wettest day in the 2015–2024 record brought 3.21 inches, and about 71 freeze-thaw days a year mean ice dams in some winters.
4% of occupied homes in Warrick County heat mainly with wood or propane, below the Indiana county median of 17%.
About 72 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
About 65,261 people live in Warrick County, 385 square miles in southwest Indiana, in roughly 26,890 homes. The county seat is Boonville, and Chandler, Newburgh and Lynnville round out the largest towns. Much of its housing is recent, with a median build year of 1986.
42/100 Water Damage Risk Index: Moderate Warrick County ranks 76 of 92 Indiana counties. See the statewide ranking and method.The three factors where Warrick County ranks highest compared with other Indiana counties.
Warrick County is milder than most of Indiana, but not mild enough to skip winterizing. It averaged 83 freezing nights a year over 2015–2024, 20 of them at 20°F or colder, cold enough for pipes in outside walls and crawl spaces to freeze. Among 92 Indiana counties that's 90th.
The longest cold spell was straight 13 days without the temperature rising above freezing, ending in January 2018. The coldest night reached about -6°F on December 23, 2022. Burst pipes usually show up when a spell like that breaks and the ice thaws.
Expect the hardest freezes in January, inside a season that runs December to February. 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 8.
Heavy rain is a bigger factor here than in most of Indiana. The county gets about 50.7 inches of rain and melted snow a year, with 13.1 days of an inch or more (5th of 92). Those downpours cluster in March, April and July, when sump pumps and gutters are tested hardest. The wettest day on record brought 3.21 inches on July 4, 2016. Multi-day storms matter most for basements; the wettest three days on record here totaled 4.56 inches (through July 5, 2016).
Freeze-thaw days, below freezing overnight and above it by afternoon, come about 71 times a year here. They're the main driver of ice dams and of water working its way through foundation cracks in late winter.
Housing
44% of homes in Warrick County predate 1980, below the Indiana county median of 58.2%, which ranks 82nd of Indiana's 92 counties.
Since 2000 the county has added enough housing that 29% of homes are that new. Modern PEX and copper rarely fail on their own; the leaks come from connections, appliances and storms.
27% 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.
Beyond water
About 72 nights a year in Warrick County stay at 65°F or warmer, a sign of muggy summer air (4th of 92 counties). March 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 expectBy main heating fuel, Warrick County homes break down as 58% utility gas, 38% electric, 3% propane and 1% wood. Heating equipment, cooking and electrical failures cause most home fires nationally. Even a small kitchen fire can leave soot through the whole house, because smoke follows air currents into closets, ducts and attic space.
Fire and smoke cleanup: first stepsCoverage
Calls connect to restoration companies that work across Warrick County. The largest communities by population:
Population from ACS 2020-2024 5-year estimates. Townships and unincorporated areas are covered too.
Nearby
Dubois, Gibson, Pike and Spencer get more pipe-freeze nights than Warrick. Vanderburgh County has the oldest housing nearby, with 63% of homes built before 1980.
By the numbers
| Factor | Warrick | Indiana median | Rank |
|---|---|---|---|
| Homes built before 1960 | 19% | 35% | 84 of 92 |
| Homes built before 1980 | 44% | 58% | 82 of 92 |
| Homes built 2000 or later | 29% | 18% | 8 of 92 |
| Manufactured or mobile homes | 3.5% | 6.4% | 72 of 92 |
| Vacant homes | 6.4% | 9.2% | 73 of 92 |
| Wood or propane heat | 3.9% | 17% | 85 of 92 |
| Nights at 20°F or colder | 20/yr | 33/yr | 90 of 92 |
| Days with 1 inch+ of rain | 13/yr | 7.8/yr | 5 of 92 |
| Freeze-thaw days | 71/yr | 84/yr | 87 of 92 |
| Muggy nights (65°F+) | 72/yr | 38/yr | 4 of 92 |
Rank 1 is the highest value. Bars run from the lowest to the highest Indiana county; the tick marks the median; orange means higher water damage risk than the median, green means lower.
Questions
Peak risk months in Warrick County: freezing from December to February, heavy rain in March, April and July.
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