Columbia County, Georgia · Appling
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Columbia County averages 2 nights a year at 20°F or colder, mostly midwinter, and 3% of its homes predate 1960.
January brings the most downpours to Columbia County, part of 12.5 heavy-rain days a year. Check the sump first.
Backups often follow heavy rain, which Columbia County gets about 12.5 days a year, when storm water overloads sewer mains and pushes up through the lowest drain in the house.
In Columbia County, 5.27 inches fell on the wettest day of the 2015–2024 record. Storms like that, and ice dams in snowy winters, cause most roof leaks.
3% of occupied homes in Columbia County heat mainly with wood or propane, below the Georgia county median of 7.1%.
About 113 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 61,668 homes and around 162,434 residents, Columbia County is 290 square miles of northeast Georgia. Besides Appling, the county seat, the biggest communities are Evans, Martinez and Grovetown. Much of its housing is recent, with a median build year of 1999.
41/100 Water Damage Risk Index: Moderate Columbia County ranks 124 of 159 Georgia counties. See the statewide ranking and method.The three factors where Columbia County ranks highest compared with other Georgia counties.
Columbia County gets more hard-freeze nights than most of Georgia. In the 2015–2024 record the county logged about 2 nights a year at or below 20°F (48th of 159) and 30 below freezing. Twenty degrees is roughly where uninsulated pipes start to freeze.
Most freezing nights fall from midwinter, 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.
Freezing nights typically start around Nov 21 and end around Mar 13.
Rainfall is about average for Georgia. Of roughly 47.4 inches of yearly precipitation, the damage comes from the 12.5 days a year with an inch or more, ranked 64th of 159. January, April and December see the most. The single wettest day in the record: 5.27 inches, September 27, 2024. The worst three-day stretch dropped 7.19 inches, ending September 28, 2024, the kind of soaking that overwhelms sump pumps and storm sewers.
The temperature crosses 32°F in both directions on roughly 30 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
18% of homes in Columbia County predate 1980, below the Georgia county median of 38.4%, which ranks 146th of Georgia's 159 counties.
48% of homes were built in 2000 or later, more than in most of Georgia. 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
About 113 nights a year in Columbia County stay at 65°F or warmer, a sign of muggy summer air (77th of 159 counties). December is the wettest month. The EPA recommends keeping indoor humidity below 60%, ideally 30 to 50%. Basements can pass 60% on their own in summer, so a dehumidifier matters even without a leak, and anything wet should be dried within 24 to 48 hours.
Mold remediation: what to expectBy main heating fuel, Columbia County homes break down as 33% utility gas, 63% electric, 3% propane and under 1% wood. Fires here are likelier to start in the kitchen or the wiring than in the furnace. After any fire, keep the HVAC off until ducts are checked, or soot will travel through the house.
Fire and smoke cleanup: first stepsCoverage
Calls connect to restoration companies that work across Columbia County. The largest communities by population:
Population from ACS 2020-2024 5-year estimates. Townships and unincorporated areas are covered too.
Nearby
Columbia gets more pipe-freeze nights than any of its neighbors. Richmond County has the oldest housing nearby, with 49% of homes built before 1980.
By the numbers
| Factor | Columbia | Georgia median | Rank |
|---|---|---|---|
| Homes built before 1960 | 3.1% | 15% | 153 of 159 |
| Homes built before 1980 | 18% | 38% | 146 of 159 |
| Homes built 2000 or later | 48% | 27% | 9 of 159 |
| Manufactured or mobile homes | 5.8% | 21% | 138 of 159 |
| Vacant homes | 11% | 14% | 108 of 159 |
| Wood or propane heat | 3.4% | 7.1% | 113 of 159 |
| Nights at 20°F or colder | 2/yr | 2/yr | 48 of 159 |
| Days with 1 inch+ of rain | 13/yr | 12/yr | 64 of 159 |
| Freeze-thaw days | 30/yr | 29/yr | 76 of 159 |
| Muggy nights (65°F+) | 113/yr | 112/yr | 77 of 159 |
Rank 1 is the highest value. Bars run from the lowest to the highest Georgia county; the tick marks the median; orange means higher water damage risk than the median, green means lower.
Questions
Peak risk months in Columbia County: freezing from midwinter, heavy rain in January, April 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