Greer County, Oklahoma · Mangum
Water spreading, a burst pipe, sewage, mold or smoke? Call to be connected with a restoration company that serves Mangum, Granite and Willow. Start the steps below while you wait.
Answered 24/7 by a participating local provider. We're a referral service and don't do the work ourselves. How it works
Start here
Pick the closest match. These steps limit the damage and protect your insurance claim. Skip anything that isn't safe.
Greer County averages 12 nights a year at 20°F or colder, mostly December to February, and 44% of its homes predate 1960.
May brings the most downpours to Greer County, part of 6.4 heavy-rain days a year. Check the sump first.
44% 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.
In Greer County, 3.61 inches fell on the wettest day of the 2015–2024 record. Storms like that, and ice dams in snowy winters, cause most roof leaks.
7% of occupied homes in Greer County heat mainly with wood or propane, below the Oklahoma county median of 12.5%.
About 97 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 2,613 homes and around 5,489 residents, Greer County is 639 square miles of central Oklahoma. The county seat is Mangum, and Granite and Willow round out the largest towns. The county's median home was built in 1964.
50/100 Water Damage Risk Index: Elevated Greer County ranks 38 of 77 Oklahoma counties. See the statewide ranking and method.The three factors where Greer County ranks highest compared with other Oklahoma counties.
For frozen pipes, Greer County is a typical Oklahoma county, which is still plenty. From 2015–2024 it averaged 12 nights a year at 20°F or colder, the range where pipes in exterior walls, crawl spaces and unheated garages freeze, and 73 nights at or below 32°F. That ranks 41st of 77 counties.
Cold snaps are the real risk. The worst in the record lasted 10 days below freezing (ending February 2021), and the low bottomed out near -5°F on February 16, 2021.
Most freezing nights fall from December to February, 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 Nov 7 and the last spring freeze around Apr 1.
Greer gets fewer downpours than most Oklahoma counties, but they still fill basements. The county gets about 26.2 inches of rain and melted snow a year, with 6.4 days of an inch or more (68th of 77). Those downpours cluster in May, June and August, when sump pumps and gutters are tested hardest. The wettest day on record brought 3.61 inches on October 8, 2018. Multi-day storms matter most for basements; the wettest three days on record here totaled 7.08 inches (through October 9, 2018).
About 68 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
Roughly 75% of the county's housing was built before 1980. That puts Greer among the oldest housing stocks of Oklahoma's 77 counties.
44% 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.
The Census counted 25% of homes as vacant, above the Oklahoma county median of 17.1%. Empty houses are where a small leak turns into a large claim, because nobody is there to hear it.
Beyond water
Greer County averages 97 warm, muggy nights a year (lows of 65°F or more) and gets the most rain in May. 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 expectHeating fuel matters for fire risk. In Greer County it's 68% utility gas, 21% electric, 6% propane and 1% wood. Most homes here heat with gas or electricity, so cooking and electrical faults are the likelier fire sources. Even a contained kitchen fire can send soot through the ductwork to every room.
Fire and smoke cleanup: first stepsCoverage
Calls connect to restoration companies that work across Greer County. The largest communities by population:
Population from ACS 2020-2024 5-year estimates. Townships and unincorporated areas are covered too.
Nearby
Beckham gets more pipe-freeze nights than Greer. Harmon County has the oldest housing nearby, with 78% of homes built before 1980.
By the numbers
| Factor | Greer | Oklahoma median | Rank |
|---|---|---|---|
| Homes built before 1960 | 44% | 24% | 6 of 77 |
| Homes built before 1980 | 75% | 55% | 8 of 77 |
| Homes built 2000 or later | 13% | 22% | 62 of 77 |
| Manufactured or mobile homes | 6.8% | 12% | 64 of 77 |
| Vacant homes | 25% | 17% | 13 of 77 |
| Wood or propane heat | 7.4% | 13% | 61 of 77 |
| Nights at 20°F or colder | 12/yr | 13/yr | 41 of 77 |
| Days with 1 inch+ of rain | 6.4/yr | 11/yr | 68 of 77 |
| Freeze-thaw days | 68/yr | 65/yr | 28 of 77 |
| Muggy nights (65°F+) | 97/yr | 98/yr | 43 of 77 |
Rank 1 is the highest value. Bars run from the lowest to the highest Oklahoma county; the tick marks the median; orange means higher water damage risk than the median, green means lower.
Questions
Peak risk months in Greer County: freezing from December to February, heavy rain in May, June and August.
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