Alfalfa County, Oklahoma · Cherokee
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With 51% of homes built before 1960 and about 24 hard-freeze nights a year, frozen and split pipes are a leading winter risk in the county.
May brings the most downpours to Alfalfa County, part of 7.2 heavy-rain days a year. Check the sump first.
51% 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 Alfalfa County, 5.01 inches fell on the wettest day of the 2015–2024 record. Storms like that, and ice dams in snowy winters, cause most roof leaks.
14% of occupied homes in Alfalfa County heat mainly with wood or propane, above the Oklahoma county median of 12.5%.
About 84 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 2,466 homes and around 5,696 residents, Alfalfa County is 867 square miles of northern Oklahoma. Besides Cherokee, the county seat, the biggest communities are Helena, Carmen and Goltry. It has some of the oldest housing in the state: the median home went up in 1959.
64/100 Water Damage Risk Index: Elevated Alfalfa County ranks 4 of 77 Oklahoma counties. See the statewide ranking and method.The three factors where Alfalfa County ranks highest compared with other Oklahoma counties.
Alfalfa is on the colder side of Oklahoma for pipes. From 2015–2024 it averaged 24 nights a year at 20°F or colder, the range where pipes in exterior walls, crawl spaces and unheated garages freeze, and 94 nights at or below 32°F. That ranks 8th of 77 counties.
On February 16, 2021 the low fell to about -12°F, and in the stretch ending February 2021 the county went 12 days in a row below freezing. Leaks from split pipes typically appear the day the thaw arrives.
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 3 and the last spring freeze around Apr 7.
Alfalfa gets fewer downpours than most Oklahoma counties, but they still fill basements. Of roughly 30.6 inches of yearly precipitation, the damage comes from the 7.2 days a year with an inch or more, ranked 63rd of 77. May, June and July see the most. The single wettest day in the record: 5.01 inches, May 21, 2019. Multi-day storms matter most for basements; the wettest three days on record here totaled 6.46 inches (through October 10, 2018).
The temperature crosses 32°F in both directions on roughly 84 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
Roughly 77% of the county's housing was built before 1980. That puts Alfalfa among the oldest housing stocks of Oklahoma's 77 counties.
51% 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.
21% 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
Alfalfa County averages 84 warm, muggy nights a year (lows of 65°F or more) and gets the most rain in May. Mold grows when indoor humidity stays above about 60%, the EPA's ceiling. A basement dehumidifier set to 50% and drying anything wet within 24 to 48 hours prevents most problems.
Mold remediation: what to expectMain heating fuel in Alfalfa County's occupied homes: 50% utility gas, 33% electric, 11% propane and 3% wood. Wood heat is more common here than in most Oklahoma 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 Alfalfa County. The largest communities by population:
Population from ACS 2020-2024 5-year estimates. Townships and unincorporated areas are covered too.
Nearby
Woods gets more pipe-freeze nights than Alfalfa. Woods County has the oldest housing nearby, with 78% of homes built before 1980.
By the numbers
| Factor | Alfalfa | Oklahoma median | Rank |
|---|---|---|---|
| Homes built before 1960 | 51% | 24% | 1 of 77 |
| Homes built before 1980 | 77% | 55% | 5 of 77 |
| Homes built 2000 or later | 10% | 22% | 69 of 77 |
| Manufactured or mobile homes | 9.2% | 12% | 58 of 77 |
| Vacant homes | 21% | 17% | 21 of 77 |
| Wood or propane heat | 14% | 13% | 33 of 77 |
| Nights at 20°F or colder | 24/yr | 13/yr | 8 of 77 |
| Days with 1 inch+ of rain | 7.2/yr | 11/yr | 63 of 77 |
| Freeze-thaw days | 84/yr | 65/yr | 8 of 77 |
| Muggy nights (65°F+) | 84/yr | 98/yr | 66 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 Alfalfa County: freezing from December to February, heavy rain in May, 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