Will Pipes Freeze in Tooele County, UT? 57 nights a Year
Freeze nights in Tooele County
In a normal year Tooele County, UT gets 57 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 70% of US counties.
Risk level: Severe. The risk season runs October to April, worst in December.
It depends where the pipe is
| Pipe | Freezes near | Nights a year |
|---|---|---|
| Outdoor spigot, open crawlspace | 32°F | 148 nights |
| Bare pipe in garage, attic or outside wall | 20°F | 57 nights |
| Insulated pipe in unheated space | 10°F | 20 nights |
| Inside the heated house | 0°F | 5 nights |
Foam-sleeving a bare pipe in unheated space takes it from 57 nights of risk to 20 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 05/11. For 20°F: 11/03 to 03/24.
How cold Tooele County nights get
Average winter (Dec-Feb) low: 20°F; the coldest month, December, averages 18°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, November, December: 20 nights a year, and 5 nights below zero.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 19°F | 24°F | 31°F | 37°F | 46°F | 55°F | 64°F | 62°F | 50°F | 37°F | 27°F | 18°F |
Tooele County next to its neighbours
Juab County, UT, 88 km south, gets 78 nights below 20°F to Tooele County's 57 nights. Davis County, UT, 100 km northeast, gets 39 nights.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Tooele County, UT | - | 148 nights | 57 nights | 19°F |
| Juab County, UT | 88 km south | 174 nights | 78 nights | 16°F |
| Davis County, UT | 100 km northeast | 124 nights | 39 nights | 21°F |
| Salt Lake County, UT | 104 km east | 96 nights | 22 nights | 26°F |
| Box Elder County, UT | 129 km north | 168 nights | 73 nights | 15°F |
| Utah County, UT | 129 km east | 114 nights | 34 nights | 22°F |
| Weber County, UT | 138 km northeast | 189 nights | 86 nights | 12°F |
Tooele County within UT
Tooele County ranks 20 of 29 UT counties for nights below 20°F. The most is Rich County, UT at 138 nights, with a 6°F average winter low. The fewest is Salt Lake County, UT: 22 nights, winter lows near 28°F. At 4,312 ft, Tooele County sits 1,495 ft below the state's median county elevation of 5,807 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.
Interior pipes have a threshold too: the four freeze points.
Where this comes from
NOAA 1991-2020 climate normals, blended from 3 nearby stations and adjusted for elevation; closest is Dugway, UT, 36 km away (fair 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.