Canadian County, Oklahoma · El Reno
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Canadian County averages 14 nights a year at 20°F or colder, mostly December to February, and 8% of its homes predate 1960.
May brings the most downpours to Canadian County, part of 9.1 heavy-rain days a year. Check the sump first.
8% 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 Canadian County, 3.89 inches fell on the wettest day of the 2015–2024 record. Storms like that, and ice dams in snowy winters, cause most roof leaks.
5% of occupied homes in Canadian County heat mainly with wood or propane, below the Oklahoma county median of 12.5%.
About 96 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 61,956 homes and around 168,985 residents, Canadian County is 897 square miles of central Oklahoma. The county seat is El Reno, and Yukon, Mustang and Piedmont round out the largest towns. Much of its housing is recent, with a median build year of 1999.
31/100 Water Damage Risk Index: Moderate Canadian County ranks 77 of 77 Oklahoma counties. See the statewide ranking and method.The three factors where Canadian County ranks highest compared with other Oklahoma counties.
For frozen pipes, Canadian County is a typical Oklahoma county, which is still plenty. In the 2015–2024 record the county logged about 14 nights a year at or below 20°F (34th of 77) and 73 below freezing. Twenty degrees is roughly where uninsulated pipes start to freeze.
On February 17, 2021 the low fell to about -10°F, and in the stretch ending February 2021 the county went 10 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 5 and the last spring freeze around Apr 2.
Canadian gets fewer downpours than most Oklahoma counties, but they still fill basements. Of roughly 35.7 inches of yearly precipitation, the damage comes from the 9.1 days a year with an inch or more, ranked 53rd of 77. May, June and October see the most. The single wettest day in the record: 3.89 inches, May 21, 2019. Multi-day storms matter most for basements; the wettest three days on record here totaled 5.14 inches (through June 28, 2021).
The temperature crosses 32°F in both directions on roughly 67 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 28% of the county's housing was built before 1980. That puts Canadian among the newer housing stocks of Oklahoma's 77 counties.
Growth since 2000 added 49% of today's homes. In houses that new, the weak points are washing machine hoses, ice maker lines, water heaters and sump pumps rather than the pipes in the walls.
23% date from 1980 to 1999, the window when polybutylene, a gray flexible plastic supply pipe, was used in some homes. It's prone to leaks at the fittings, so it's worth checking for in a house from those years.
Beyond water
About 96 nights a year in Canadian County stay at 65°F or warmer, a sign of muggy summer air (44th of 77 counties). May 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 expectHeating fuel matters for fire risk. In Canadian County it's 59% utility gas, 35% electric, 5% 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 Canadian County. The largest communities by population:
Population from ACS 2020-2024 5-year estimates. Townships and unincorporated areas are covered too.
Nearby
Blaine and Kingfisher get more pipe-freeze nights than Canadian. Blaine County has the oldest housing nearby, with 69% of homes built before 1980.
By the numbers
| Factor | Canadian | Oklahoma median | Rank |
|---|---|---|---|
| Homes built before 1960 | 8.1% | 24% | 75 of 77 |
| Homes built before 1980 | 28% | 55% | 76 of 77 |
| Homes built 2000 or later | 49% | 22% | 1 of 77 |
| Manufactured or mobile homes | 4.6% | 12% | 71 of 77 |
| Vacant homes | 6% | 17% | 77 of 77 |
| Wood or propane heat | 5.2% | 13% | 69 of 77 |
| Nights at 20°F or colder | 14/yr | 13/yr | 34 of 77 |
| Days with 1 inch+ of rain | 9.1/yr | 11/yr | 53 of 77 |
| Freeze-thaw days | 67/yr | 65/yr | 31 of 77 |
| Muggy nights (65°F+) | 96/yr | 98/yr | 44 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 Canadian County: freezing from December to February, heavy rain in May, June 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