Will Pipes Freeze in Caldwell County, NC? 14 nights a Year
Freeze nights in Caldwell County
In a normal year Caldwell County, NC gets 14 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 30% of US counties.
Risk level: Regular. The risk season runs December to March, worst in January.
It depends where the pipe is
| Pipe | Freezes near | Nights a year |
|---|---|---|
| Outdoor spigot, open crawlspace | 32°F | 85 nights |
| Bare pipe in garage, attic or outside wall | 20°F | 14 nights |
| Insulated pipe in unheated space | 10°F | 1 night |
| Inside the heated house | 0°F | under 1 night |
Foam-sleeving a bare pipe in unheated space takes it from 14 nights of risk to 1 night. 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 10/31, last around 04/07. For 20°F: 12/09 to 02/25.
How cold Caldwell County nights get
Average winter (Dec-Feb) low: 30°F; the coldest month, January, averages 28°F overnight. 7 months normally bring at least one night below 32°F (Jan, Feb, Mar, Apr, Oct, Nov, Dec). Nights below 10°F, cold enough to freeze insulated pipe in an unheated space, come in January: 1 night a year, and under 1 night below zero.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 28°F | 30°F | 37°F | 46°F | 54°F | 63°F | 67°F | 66°F | 59°F | 47°F | 36°F | 30°F |
Caldwell County next to its neighbours
Burke County, NC, 30 km southwest, gets 17 nights below 20°F to Caldwell County's 14 nights. Alexander County, NC, 31 km east, gets 9 nights.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Caldwell County, NC | - | 85 nights | 14 nights | 28°F |
| Burke County, NC | 30 km southwest | 90 nights | 17 nights | 28°F |
| Alexander County, NC | 31 km east | 67 nights | 9 nights | 29°F |
| Watauga County, NC | 35 km northwest | 123 nights | 43 nights | 21°F |
| Avery County, NC | 39 km west | 122 nights | 44 nights | 22°F |
| Wilkes County, NC | 41 km northeast | 101 nights | 20 nights | 27°F |
| Catawba County, NC | 43 km southeast | 59 nights | 8 nights | 31°F |
Caldwell County within NC
Caldwell County ranks 37 of 100 NC counties for nights below 20°F. The most is Swain County, NC at 49 nights, with a 24°F average winter low. The fewest is Carteret County, NC: 3 nights, winter lows near 39°F. At 1,413 ft, Caldwell County sits 940 ft above the state's median county elevation of 473 ft.
What to do here
- Insulate every pipe in unheated space before the season starts.
- Heat tape on the runs you cannot insulate well.
- Shut off and drain outdoor spigots for the season.
What insulating actually removes here, and when heat tape is needed: insulate or heat tape?.
Where this comes from
NOAA 1991-2020 climate normals, blended from 3 nearby stations and adjusted for elevation; closest is Lenoir, NC, 6 km away (close 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.