Erie County, Ohio · Sandusky
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Pipes freeze in Erie County on about 28 nights a year, mostly December to March. Older homes, 41% of the stock here, are most at risk.
Heavy rain days of an inch or more come about 3.4 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 Erie County gets about 3.4 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 69 freeze-thaw days a year, from winter ice dams. Most show up as ceiling stains in the room below.
8% of occupied homes in Erie County heat mainly with wood or propane, below the Ohio county median of 15.9%.
With 48 muggy nights a year, mold in Erie County can appear within days of a leak. Dry first, then clean.
Local risk profile
About 74,581 people live in Erie County, 251 square miles in northern Ohio, in roughly 38,534 homes. Sandusky is the county seat; Huron, Milan and Castalia are the next largest communities. The county's median home was built in 1968.
41/100 Water Damage Risk Index: Moderate Erie County ranks 63 of 88 Ohio counties. See the statewide ranking and method.The three factors where Erie County ranks highest compared with other Ohio counties.
Erie County is milder than most of Ohio, but not mild enough to skip winterizing. From 2015–2024 it averaged 28 nights a year at 20°F or colder, the range where pipes in exterior walls, crawl spaces and unheated garages freeze, and 98 nights at or below 32°F. That ranks 63rd of 88 counties.
On February 20, 2015 the low fell to about -11°F, and in the stretch ending March 2015 the county went 18 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 December 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 9 and the last spring freeze around Apr 21.
Erie gets fewer downpours than most Ohio counties, but they still fill basements. The county gets about 36.8 inches of rain and melted snow a year, with 3.4 days of an inch or more (84th of 88). Those downpours cluster in July, October and November, when sump pumps and gutters are tested hardest. The wettest day on record brought 3.82 inches on August 24, 2023. Multi-day storms matter most for basements; the wettest three days on record here totaled 4.67 inches (through August 26, 2023).
Freeze-thaw days, below freezing overnight and above it by afternoon, come about 69 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
Ohio's 88 counties range widely in housing age; Erie ranks 25th, with 68% of its homes built before 1980.
The mix runs from 41% built before 1960 to 11% built since 2000, so older neighborhoods bring aging pipe while newer subdivisions bring failed appliance lines and water heaters.
16% of homes were vacant at survey time. A leak in an empty rental or seasonal house can run for days before anyone notices, which is why those losses tend to be larger.
Beyond water
About 48 nights a year in Erie County stay at 65°F or warmer, a sign of muggy summer air (4th of 88 counties). August 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 expectMain heating fuel in Erie County's occupied homes: 64% utility gas, 26% electric, 8% 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 Erie County. The largest communities by population:
Population from ACS 2020-2024 5-year estimates. Townships and unincorporated areas are covered too.
Nearby
Huron, Lorain and Sandusky get more pipe-freeze nights than Erie. Sandusky County has the oldest housing nearby, with 71% of homes built before 1980.
By the numbers
| Factor | Erie | Ohio median | Rank |
|---|---|---|---|
| Homes built before 1960 | 41% | 37% | 34 of 88 |
| Homes built before 1980 | 68% | 61% | 25 of 88 |
| Homes built 2000 or later | 11% | 17% | 71 of 88 |
| Manufactured or mobile homes | 3.1% | 5.9% | 69 of 88 |
| Vacant homes | 16% | 8.4% | 9 of 88 |
| Wood or propane heat | 8.4% | 16% | 68 of 88 |
| Nights at 20°F or colder | 28/yr | 31/yr | 63 of 88 |
| Days with 1 inch+ of rain | 3.4/yr | 5.7/yr | 84 of 88 |
| Freeze-thaw days | 69/yr | 82/yr | 88 of 88 |
| Muggy nights (65°F+) | 48/yr | 35/yr | 4 of 88 |
Rank 1 is the highest value. Bars run from the lowest to the highest Ohio county; the tick marks the median; orange means higher water damage risk than the median, green means lower.
Questions
Peak risk months in Erie County: freezing from December to March, heavy rain in July, October and November.
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