Wyoming County, New York · Warsaw
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Pipes freeze in Wyoming County on about 56 nights a year, mostly November to April. Older homes, 50% of the stock here, are most at risk.
Basements flood here mostly in July. Wyoming County averages 4.9 days a year with an inch of rain or more.
50% of homes here predate 1960, when clay and cast iron sewer laterals were standard. Roots and cracks in those lines are a common cause of backups.
Wyoming County's wettest day in the 2015–2024 record brought 2.46 inches, and about 93 freeze-thaw days a year mean ice dams in some winters.
24% of occupied homes in Wyoming County heat mainly with wood or propane, above the New York county median of 19%.
With 11 muggy nights a year, mold in Wyoming County can appear within days of a leak. Dry first, then clean.
Local risk profile
About 39,753 people live in Wyoming County, 593 square miles in western New York, in roughly 18,263 homes. Besides Warsaw, the county seat, the biggest communities are Perry, Attica and Arcade. Half the homes here were built before 1960, half after.
53/100 Water Damage Risk Index: Elevated Wyoming County ranks 25 of 57 New York counties. See the statewide ranking and method.The three factors where Wyoming County ranks highest compared with other New York counties.
Pipe-freeze risk in Wyoming County sits near the middle of the state. From 2015–2024 it averaged 56 nights a year at 20°F or colder, the range where pipes in exterior walls, crawl spaces and unheated garages freeze, and 140 nights at or below 32°F. That ranks 24th of 57 counties.
On February 14, 2016 the low fell to about -16°F, and in the stretch ending March 2015 the county went 32 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 April. That's when an outdoor spigot left connected to a hose, or a pipe in a crawl space, is most likely to split.
Freezing nights typically start around Oct 21 and end around May 7.
Rainfall is about average for New York. About 4.9 days a year bring an inch or more (36th of 57), most often in July, out of 41 inches of total precipitation. On November 12, 2022, 2.46 inches fell in a single day. The worst three-day stretch dropped 3.34 inches, ending October 22, 2016, the kind of soaking that overwhelms sump pumps and storm sewers.
The temperature crosses 32°F in both directions on roughly 93 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
New York's 57 counties range widely in housing age; Wyoming ranks 16th, with 72% of its homes built before 1980.
50% were built before 1960. Homes from that era often still have galvanized steel supply pipe, which rusts from the inside until it pinholes, and cast iron drains that crack with age. Slow leaks behind walls are a common start to water damage in these houses.
Manufactured and mobile homes make up 9% of the housing here. Water lines in the underbelly depend on intact skirting and working heat tape, and they're usually the first to freeze in a cold snap.
Beyond water
Wyoming County averages 11 warm, muggy nights a year (lows of 65°F or more) and gets the most rain in October. 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, Wyoming County homes break down as 45% utility gas, 18% electric, 16% propane and 8% wood. Wood heat is more common here than in most New York 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 Wyoming County. The largest communities by population:
Population from ACS 2020-2024 5-year estimates. Townships and unincorporated areas are covered too.
Nearby
Allegany and Cattaraugus get more pipe-freeze nights than Wyoming. Genesee County has the oldest housing nearby, with 77% of homes built before 1980.
By the numbers
| Factor | Wyoming | New York median | Rank |
|---|---|---|---|
| Homes built before 1960 | 50% | 45% | 18 of 57 |
| Homes built before 1980 | 72% | 67% | 16 of 57 |
| Homes built 2000 or later | 10% | 13% | 45 of 57 |
| Manufactured or mobile homes | 8.9% | 7.6% | 21 of 57 |
| Vacant homes | 9.9% | 14% | 37 of 57 |
| Wood or propane heat | 24% | 19% | 20 of 57 |
| Nights at 20°F or colder | 56/yr | 55/yr | 24 of 57 |
| Days with 1 inch+ of rain | 4.9/yr | 6/yr | 36 of 57 |
| Freeze-thaw days | 93/yr | 101/yr | 37 of 57 |
| Muggy nights (65°F+) | 11/yr | 12/yr | 30 of 57 |
Rank 1 is the highest value. Bars run from the lowest to the highest New York county; the tick marks the median; orange means higher water damage risk than the median, green means lower.
Questions
Peak risk months in Wyoming County: freezing from November to April, heavy rain in July, August 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