Otter Tail County, Minnesota · Fergus Falls
Water spreading, a burst pipe, sewage, mold or smoke? Call to be connected with a restoration company that serves Fergus Falls, Perham and Pelican Rapids. 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.
Pipes freeze in Otter Tail County on about 101 nights a year, mostly November to April. Older homes, 27% of the stock here, are most at risk.
July brings the most downpours to Otter Tail County, part of 4.2 heavy-rain days a year. Check the sump first.
Sewage backups in Otter Tail County spike on heavy-rain days, about 4.2 a year, when sewer mains fill up and water finds the lowest drain.
Otter Tail County's wettest day in the 2015–2024 record brought 2.78 inches, and about 83 freeze-thaw days a year mean ice dams in some winters.
34% of occupied homes in Otter Tail County heat mainly with wood or propane, above the Minnesota county median of 30%.
About 8 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 36,698 homes and around 60,475 residents, Otter Tail County is 1,972 square miles of western Minnesota. Besides Fergus Falls, the county seat, the biggest communities are Perham, Pelican Rapids and New York Mills. The county's median home was built in 1979.
44/100 Water Damage Risk Index: Moderate Otter Tail County ranks 59 of 87 Minnesota counties. See the statewide ranking and method.The three factors where Otter Tail County ranks highest compared with other Minnesota counties.
Otter Tail is on the colder side of Minnesota for pipes. It averaged 168 freezing nights a year over 2015–2024, 101 of them at 20°F or colder, cold enough for pipes in outside walls and crawl spaces to freeze. Among 87 Minnesota counties that's 23rd.
On January 31, 2019 the low fell to about -36°F, and in the stretch ending March 2019 the county went 63 days in a row below freezing. Leaks from split pipes typically appear the day the thaw arrives.
The freeze season here runs November to April, with January the coldest. If you travel then, leave the thermostat at 55°F or above and open sink cabinets on outside walls.
On average the first fall freeze arrives around Oct 11 and the last spring freeze around May 6.
Otter Tail gets fewer downpours than most Minnesota counties, but they still fill basements. About 4.2 days a year bring an inch or more (61st of 87), most often in July, out of 25.7 inches of total precipitation. On June 17, 2018, 2.78 inches fell in a single day. Multi-day storms matter most for basements; the wettest three days on record here totaled 4.59 inches (through July 12, 2016).
Freeze-thaw days, below freezing overnight and above it by afternoon, come about 83 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
51% of homes in Otter Tail County predate 1980, below the Minnesota county median of 58.4%, which ranks 59th of Minnesota's 87 counties.
Since 2000 the county has added enough housing that 26% of homes are that new. Modern PEX and copper rarely fail on their own; the leaks come from connections, appliances and storms.
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.
The Census counted 31% of homes as vacant, above the Minnesota county median of 11%. Empty houses are where a small leak turns into a large claim, because nobody is there to hear it.
Beyond water
Otter Tail County averages 8 warm, muggy nights a year (lows of 65°F or more) and gets the most rain in July. 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 expectBy main heating fuel, Otter Tail County homes break down as 32% utility gas, 27% electric, 29% propane and 5% wood. Wood heat is more common here than the state median. Have chimneys swept and fuel-burning appliances serviced each fall, and keep three feet clear around stoves and space heaters.
Fire and smoke cleanup: first stepsCoverage
Calls connect to restoration companies that work across Otter Tail County. The largest communities by population:
Population from ACS 2020-2024 5-year estimates. Townships and unincorporated areas are covered too.
Nearby
Becker and Clay get more pipe-freeze nights than Otter Tail. Wilkin County has the oldest housing nearby, with 66% of homes built before 1980.
By the numbers
| Factor | Otter Tail | Minnesota median | Rank |
|---|---|---|---|
| Homes built before 1960 | 27% | 34% | 59 of 87 |
| Homes built before 1980 | 51% | 58% | 59 of 87 |
| Homes built 2000 or later | 26% | 21% | 30 of 87 |
| Manufactured or mobile homes | 6.4% | 3.8% | 22 of 87 |
| Vacant homes | 31% | 11% | 7 of 87 |
| Wood or propane heat | 34% | 30% | 33 of 87 |
| Nights at 20°F or colder | 101/yr | 89/yr | 23 of 87 |
| Days with 1 inch+ of rain | 4.2/yr | 5.3/yr | 61 of 87 |
| Freeze-thaw days | 83/yr | 86/yr | 67 of 87 |
| Muggy nights (65°F+) | 8/yr | 13/yr | 60 of 87 |
Rank 1 is the highest value. Bars run from the lowest to the highest Minnesota county; the tick marks the median; orange means higher water damage risk than the median, green means lower.
Questions
Peak risk months in Otter Tail County: freezing from November to April, heavy rain in June, July 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