Hendricks County, Indiana · Danville
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Pipes freeze in Hendricks County on about 34 nights a year, mostly November to March. Older homes, 12% of the stock here, are most at risk.
Heavy rain days of an inch or more come about 8.1 times a year here, most often in July. A sump pump that hasn't run since last season is a common weak point.
Backups often follow heavy rain, which Hendricks County gets about 8.1 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 83 freeze-thaw days a year, from winter ice dams. Most show up as ceiling stains in the room below.
6% of occupied homes in Hendricks County heat mainly with wood or propane, below the Indiana county median of 17%.
About 40 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
Hendricks County covers 407 square miles of central Indiana, with about 183,344 residents and 69,675 homes. Besides Danville, the county seat, the biggest communities are Plainfield, Brownsburg and Avon. Much of its housing is recent, with a median build year of 1998.
40/100 Water Damage Risk Index: Moderate Hendricks County ranks 79 of 92 Indiana counties. See the statewide ranking and method.The three factors where Hendricks County ranks highest compared with other Indiana counties.
For frozen pipes, Hendricks County is a typical Indiana county, which is still plenty. In the 2015–2024 record the county logged about 34 nights a year at or below 20°F (37th of 92) and 109 below freezing. Twenty degrees is roughly where uninsulated pipes start to freeze.
The longest cold spell was straight 15 days without the temperature rising above freezing, ending in February 2021. The coldest night reached about -13°F on January 31, 2019. Burst pipes usually show up when a spell like that breaks and the ice thaws.
Most freezing nights fall from November to March, peaking in January. Disconnect garden hoses and shut off outdoor spigots before the first hard frost, and keep the heat at 55°F or higher if you'll be away.
On average the first fall freeze arrives around Oct 25 and the last spring freeze around Apr 18.
Rainfall is about average for Indiana. About 8.1 days a year bring an inch or more (41st of 92), most often in July, out of 42 inches of total precipitation. On June 19, 2021, 2.33 inches fell in a single day. Multi-day storms matter most for basements; the wettest three days on record here totaled 3.96 inches (through May 1, 2017).
About 83 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
28% of homes in Hendricks County predate 1980, below the Indiana county median of 58.2%, which ranks 91st of Indiana's 92 counties.
Growth since 2000 added 46% of today's homes. In houses that new, the weak points are washing machine hoses, ice maker lines, water heaters and sump pumps rather than the pipes in the walls.
The 1980s and 1990s account for 26% 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
Hendricks County averages 40 warm, muggy nights a year (lows of 65°F or more) and gets the most rain in July. 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 expectMain heating fuel in Hendricks County's occupied homes: 55% utility gas, 39% electric, 5% propane and under 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 Hendricks County. The largest communities by population:
Population from ACS 2020-2024 5-year estimates. Townships and unincorporated areas are covered too.
Nearby
Boone, Montgomery and Putnam get more pipe-freeze nights than Hendricks. Montgomery County has the oldest housing nearby, with 66% of homes built before 1980.
By the numbers
| Factor | Hendricks | Indiana median | Rank |
|---|---|---|---|
| Homes built before 1960 | 12% | 35% | 91 of 92 |
| Homes built before 1980 | 28% | 58% | 91 of 92 |
| Homes built 2000 or later | 46% | 18% | 2 of 92 |
| Manufactured or mobile homes | 1.3% | 6.4% | 92 of 92 |
| Vacant homes | 3.7% | 9.2% | 90 of 92 |
| Wood or propane heat | 5.5% | 17% | 80 of 92 |
| Nights at 20°F or colder | 34/yr | 33/yr | 37 of 92 |
| Days with 1 inch+ of rain | 8.1/yr | 7.8/yr | 41 of 92 |
| Freeze-thaw days | 83/yr | 84/yr | 47 of 92 |
| Muggy nights (65°F+) | 40/yr | 38/yr | 40 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 Hendricks County: freezing from November to March, heavy rain in April, June 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