Will Pipes Freeze in San Miguel County, NM? 97 nights a Year
Freeze nights in San Miguel County
In a normal year San Miguel County, NM gets 97 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 91% 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 | 97 nights |
| Insulated pipe in unheated space | 10°F | 29 nights |
| Inside the heated house | 0°F | 6 nights |
Foam-sleeving a bare pipe in unheated space takes it from 97 nights of risk to 29 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 09/30, last around 05/24. For 20°F: 10/27 to 04/14.
How cold San Miguel County nights get
Average winter (Dec-Feb) low: 15°F; the coldest month, January, averages 14°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: 29 nights a year, and 6 nights below zero.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 14°F | 17°F | 23°F | 29°F | 38°F | 47°F | 52°F | 51°F | 44°F | 32°F | 22°F | 15°F |
San Miguel County next to its neighbours
Colfax County, NM, 127 km north, gets 98 nights below 20°F to San Miguel County's 97 nights. Mora County, NM, 57 km north, gets 85 nights.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| San Miguel County, NM | - | 187 nights | 97 nights | 14°F |
| Mora County, NM | 57 km north | 185 nights | 85 nights | 16°F |
| Guadalupe County, NM | 68 km south | 117 nights | 33 nights | 24°F |
| Harding County, NM | 96 km northeast | 135 nights | 46 nights | 21°F |
| Santa Fe County, NM | 105 km west | 158 nights | 57 nights | 19°F |
| Quay County, NM | 121 km east | 106 nights | 29 nights | 24°F |
| Colfax County, NM | 127 km north | 185 nights | 98 nights | 13°F |
San Miguel County within NM
San Miguel County ranks 6 of 33 NM counties for nights below 20°F. The most is Rio Arriba County, NM at 118 nights, with a 11°F average winter low. The fewest is Sierra County, NM: 6 nights, winter lows near 31°F. At 6,104 ft, San Miguel County sits 500 ft above the state's median county elevation of 5,604 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 Las Vegas Wastewater Plant, NM, 38 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.