Will Pipes Freeze in Duchesne County, UT? 102 nights a Year
Freeze nights in Duchesne County
In a normal year Duchesne County, UT gets 102 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 92% 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 | 187 nights |
| Bare pipe in garage, attic or outside wall | 20°F | 102 nights |
| Insulated pipe in unheated space | 10°F | 46 nights |
| Inside the heated house | 0°F | 14 nights |
Foam-sleeving a bare pipe in unheated space takes it from 102 nights of risk to 46 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 09/23, last around 05/31. For 20°F: 10/25 to 04/21.
How cold Duchesne County nights get
Average winter (Dec-Feb) low: 10°F; the coldest month, January, averages 8°F overnight. 10 months normally bring at least one night below 32°F (Jan, Feb, Mar, Apr, May, Jun, 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: 46 nights a year, and 14 nights below zero.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 8°F | 13°F | 23°F | 29°F | 38°F | 46°F | 53°F | 51°F | 43°F | 31°F | 20°F | 10°F |
Duchesne County next to its neighbours
Wasatch County, UT, 62 km west, gets 117 nights below 20°F to Duchesne County's 102 nights. Carbon County, UT, 70 km south, gets 52 nights.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Duchesne County, UT | - | 187 nights | 102 nights | 8°F |
| Wasatch County, UT | 62 km west | 217 nights | 117 nights | 13°F |
| Carbon County, UT | 70 km south | 146 nights | 52 nights | 20°F |
| Summit County, UT | 79 km northwest | 214 nights | 110 nights | 10°F |
| Uintah County, UT | 80 km east | 174 nights | 96 nights | 5°F |
| Daggett County, UT | 103 km northeast | 191 nights | 97 nights | 13°F |
| Utah County, UT | 107 km west | 114 nights | 34 nights | 22°F |
Duchesne County within UT
Duchesne County ranks 6 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 6,287 ft, Duchesne County sits 480 ft above 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.
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 Altamont, UT, 14 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.