Will Pipes Freeze in Vernon County, WI? 89 nights a Year
Freeze nights in Vernon County
In a normal year Vernon County, WI gets 89 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 87% 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 | 164 nights |
| Bare pipe in garage, attic or outside wall | 20°F | 89 nights |
| Insulated pipe in unheated space | 10°F | 48 nights |
| Inside the heated house | 0°F | 25 nights |
Foam-sleeving a bare pipe in unheated space takes it from 89 nights of risk to 48 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 10/02, last around 05/07. For 20°F: 11/04 to 04/05.
How cold Vernon County nights get
Average winter (Dec-Feb) low: 10°F; the coldest month, January, averages 7°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, November, December: 48 nights a year, and 25 nights below zero.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 7°F | 10°F | 22°F | 34°F | 45°F | 56°F | 59°F | 58°F | 49°F | 37°F | 25°F | 14°F |
Vernon County next to its neighbours
Crawford County, WI, 41 km south, gets 76 nights.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Vernon County, WI | - | 164 nights | 89 nights | 7°F |
| Richland County, WI | 40 km southeast | 165 nights | 89 nights | 8°F |
| Crawford County, WI | 41 km south | 147 nights | 76 nights | 8°F |
| La Crosse County, WI | 41 km northwest | 141 nights | 72 nights | 10°F |
| Monroe County, WI | 42 km northeast | 165 nights | 87 nights | 7°F |
| Houston County, MN | 55 km west | 160 nights | 87 nights | 8°F |
| Allamakee County, IA | 58 km southwest | 158 nights | 85 nights | 8°F |
Vernon County within WI
Vernon County ranks 35 of 72 WI counties for nights below 20°F. The most is Vilas County, WI at 116 nights, with a 4°F average winter low. The fewest is Racine County, WI: 55 nights, winter lows near 19°F. At 1,226 ft, Vernon County sits 231 ft above the state's median county elevation of 995 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.
The dates to be done by: when freeze season starts and ends.
Where this comes from
NOAA 1991-2020 climate normals, blended from 3 nearby stations and adjusted for elevation; closest is Viroqua, WI, 6 km away (close match). A normal year, not tonight's forecast: check the forecast low for the night itself. How a county figure is built from stations: how the numbers are made.