Will Pipes Freeze in Millard County, UT? 77 nights a Year
Freeze nights in Millard County
In a normal year Millard County, UT gets 77 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 81% 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 | 175 nights |
| Bare pipe in garage, attic or outside wall | 20°F | 77 nights |
| Insulated pipe in unheated space | 10°F | 28 nights |
| Inside the heated house | 0°F | 9 nights |
Foam-sleeving a bare pipe in unheated space takes it from 77 nights of risk to 28 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 09/27, last around 05/23. For 20°F: 10/26 to 04/09.
How cold Millard County nights get
Average winter (Dec-Feb) low: 18°F; the coldest month, December, averages 15°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: 28 nights a year, and 9 nights below zero.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 16°F | 21°F | 27°F | 32°F | 40°F | 48°F | 57°F | 55°F | 45°F | 33°F | 23°F | 15°F |
Millard County next to its neighbours
Juab County, UT, 89 km north, gets 78 nights below 20°F to Millard County's 77 nights. Beaver County, UT, 67 km south, gets 68 nights.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Millard County, UT | - | 175 nights | 77 nights | 16°F |
| Beaver County, UT | 67 km south | 164 nights | 68 nights | 17°F |
| Juab County, UT | 89 km north | 174 nights | 78 nights | 16°F |
| Piute County, UT | 111 km southeast | 207 nights | 108 nights | 12°F |
| Sevier County, UT | 117 km east | 214 nights | 108 nights | 12°F |
| Iron County, UT | 117 km south | 179 nights | 77 nights | 17°F |
| Sanpete County, UT | 142 km east | 188 nights | 87 nights | 11°F |
Millard County within UT
Millard County ranks 14 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 4,517 ft, Millard County sits 1,290 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.
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 Black Rock, UT, 32 km away (fair 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.