Sibley County, Minnesota · Gaylord
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Sibley County averages 80 nights a year at 20°F or colder, mostly November to March, and 47% of its homes predate 1960.
Heavy rain days of an inch or more come about 4.7 times a year here, most often in July. A sump pump that hasn't run since last season is a common weak point.
Backups often follow heavy rain, which Sibley County gets about 4.7 days a year, when storm water overloads sewer mains and pushes up through the lowest drain in the house.
In Sibley County, 3.3 inches fell on the wettest day of the 2015–2024 record. Storms like that, and ice dams in snowy winters, cause most roof leaks.
34% of occupied homes in Sibley County heat mainly with wood or propane, above the Minnesota county median of 30%.
About 20 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
About 15,005 people live in Sibley County, 589 square miles in southern Minnesota, in roughly 6,523 homes. The county seat is Gaylord, and Arlington, Winthrop and Gibbon round out the largest towns. Half the homes here were built before 1964, half after.
50/100 Water Damage Risk Index: Elevated Sibley County ranks 46 of 87 Minnesota counties. See the statewide ranking and method.The three factors where Sibley County ranks highest compared with other Minnesota counties.
Winters here are on the gentler end for Minnesota, and pipes still freeze. From 2015–2024 it averaged 80 nights a year at 20°F or colder, the range where pipes in exterior walls, crawl spaces and unheated garages freeze, and 150 nights at or below 32°F. That ranks 66th of 87 counties.
Cold snaps are the real risk. The worst in the record lasted 33 days below freezing (ending March 2019), and the low bottomed out near -28°F on January 31, 2019.
Most freezing nights fall from November to March, 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.
Freezing nights typically start around Oct 13 and end around Apr 28.
Rainfall is about average for Minnesota. About 4.7 days a year bring an inch or more (57th of 87), most often in July, out of 28.1 inches of total precipitation. On August 11, 2016, 3.3 inches fell in a single day. The worst three-day stretch dropped 3.81 inches, ending August 13, 2016, the kind of soaking that overwhelms sump pumps and storm sewers.
The temperature crosses 32°F in both directions on roughly 83 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 68% of the county's housing was built before 1980. That puts Sibley among the oldest housing stocks of Minnesota's 87 counties.
Before 1960 is when 47% of these homes went up. Galvanized supply lines and cast iron drains were standard then, and after 60-plus years both corrode and crack, often out of sight inside a wall or under a slab.
Beyond water
Sibley County averages 20 warm, muggy nights a year (lows of 65°F or more) and gets the most rain in August. 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 expectMain heating fuel in Sibley County's occupied homes: 47% utility gas, 12% electric, 31% propane and 4% wood. Wood heat is more common here than in most Minnesota 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 Sibley County. The largest communities by population:
Population from ACS 2020-2024 5-year estimates. Townships and unincorporated areas are covered too.
Nearby
McLeod and Renville get more pipe-freeze nights than Sibley. Renville County has the oldest housing nearby, with 77% of homes built before 1980.
By the numbers
| Factor | Sibley | Minnesota median | Rank |
|---|---|---|---|
| Homes built before 1960 | 47% | 34% | 21 of 87 |
| Homes built before 1980 | 68% | 58% | 28 of 87 |
| Homes built 2000 or later | 14% | 21% | 60 of 87 |
| Manufactured or mobile homes | 2.6% | 3.8% | 58 of 87 |
| Vacant homes | 9.1% | 11% | 53 of 87 |
| Wood or propane heat | 34% | 30% | 32 of 87 |
| Nights at 20°F or colder | 80/yr | 89/yr | 66 of 87 |
| Days with 1 inch+ of rain | 4.7/yr | 5.3/yr | 57 of 87 |
| Freeze-thaw days | 83/yr | 86/yr | 67 of 87 |
| Muggy nights (65°F+) | 20/yr | 13/yr | 14 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 Sibley County: freezing from November to March, heavy rain in July, August and September.
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