Will Pipes Freeze in Lake of the Woods County, MN? 122 nights a Year
Freeze nights in Lake of the Woods County
In a normal year Lake of the Woods County, MN gets 122 nights at or below 20°F, the point where bare pipes in a garage, attic or outside wall start to freeze. That is more than 98% of US counties.
Risk level: Severe. The risk season runs October to April, worst in January.
It depends where the pipe is
| Pipe | Freezes near | Nights a year |
|---|---|---|
| Outdoor spigot, open crawlspace | 32°F | 189 nights |
| Bare pipe in garage, attic or outside wall | 20°F | 122 nights |
| Insulated pipe in unheated space | 10°F | 85 nights |
| Inside the heated house | 0°F | 56 nights |
Foam-sleeving a bare pipe in unheated space takes it from 122 nights of risk to 85 nights. A 12 ft heat-tape kit runs $17 to $37; an average burst-pipe repair is about $500.
Month by month
Nights at or below 20°F in a normal year.
First 32°F night is usually around 09/26, last around 05/15. For 20°F: 11/01 to 04/15.
How cold Lake of the Woods County nights get
Average winter (Dec-Feb) low: -1°F; the coldest month, January, averages -5°F overnight. 9 months normally bring at least one night below 32°F (Jan, Feb, Mar, Apr, May, Sep, Oct, Nov, Dec). Nights below 10°F, cold enough to freeze insulated pipe in an unheated space, come in January, February, March, April, November, December: 85 nights a year, and 56 nights below zero.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| -5°F | -2°F | 12°F | 28°F | 41°F | 52°F | 56°F | 54°F | 45°F | 33°F | 18°F | 3°F |
Lake of the Woods County next to its neighbours
Roseau County, MN, 67 km west, gets 123 nights below 20°F to Lake of the Woods County's 122 nights. Pennington County, MN, 114 km southwest, gets 116 nights.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Lake of the Woods County, MN | - | 189 nights | 122 nights | -5°F |
| Roseau County, MN | 67 km west | 190 nights | 123 nights | -6°F |
| Beltrami County, MN | 99 km south | 187 nights | 122 nights | -3°F |
| Koochiching County, MN | 101 km southeast | 197 nights | 124 nights | -5°F |
| Pennington County, MN | 114 km southwest | 184 nights | 116 nights | -3°F |
| Marshall County, MN | 116 km west | 185 nights | 118 nights | -4°F |
| Red Lake County, MN | 133 km southwest | 182 nights | 117 nights | -3°F |
Lake of the Woods County within MN
Lake of the Woods County ranks 7 of 87 MN counties for nights below 20°F. The most is St. Louis County, MN at 130 nights, with a 0°F average winter low. The fewest is Winona County, MN: 81 nights, winter lows near 12°F. At 1,145 ft, Lake of the Woods County sits close to the state's median county elevation of 1,114 ft.
What to do here
- Treat it as a building fix, not a night-of routine: insulate, heat tape, seal crawlspace vents.
- An automatic leak shutoff pays for itself if one burst is avoided.
- Know where the main shutoff is before the first hard freeze.
At this many nights, foam alone is not the answer: insulate or heat tape?.
Where this comes from
NOAA 1991-2020 climate normals, blended from 3 nearby stations and adjusted for elevation; closest is Baudette International Airport, MN, 23 km away (close match). A normal year, not tonight's forecast: check the forecast low for the night itself. Why elevation is part of the blend: how county numbers are made.