Will Pipes Freeze in Clay County, NC? 21 nights a Year
Freeze nights in Clay County
In a normal year Clay County, NC gets 21 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 38% of US counties.
Risk level: Regular. The risk season runs November to March, worst in January.
It depends where the pipe is
| Pipe | Freezes near | Nights a year |
|---|---|---|
| Outdoor spigot, open crawlspace | 32°F | 103 nights |
| Bare pipe in garage, attic or outside wall | 20°F | 21 nights |
| Insulated pipe in unheated space | 10°F | 4 nights |
| Inside the heated house | 0°F | under 1 night |
Foam-sleeving a bare pipe in unheated space takes it from 21 nights of risk to 4 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 10/21, last around 04/21. For 20°F: 11/24 to 03/09.
How cold Clay County nights get
Average winter (Dec-Feb) low: 27°F; the coldest month, January, averages 25°F overnight. 8 months normally bring at least one night below 32°F (Jan, Feb, Mar, Apr, May, Oct, Nov, Dec). Nights below 10°F, cold enough to freeze insulated pipe in an unheated space, come in January, December: 4 nights a year, and under 1 night below zero.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 25°F | 28°F | 34°F | 41°F | 51°F | 58°F | 62°F | 61°F | 55°F | 43°F | 33°F | 28°F |
Clay County next to its neighbours
Cherokee County, NC, 30 km west, gets 23 nights below 20°F to Clay County's 21 nights. Rabun County, GA, 37 km southeast, gets 15 nights.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Clay County, NC | - | 103 nights | 21 nights | 25°F |
| Towns County, GA | 17 km south | 91 nights | 22 nights | 26°F |
| Cherokee County, NC | 30 km west | 103 nights | 23 nights | 26°F |
| Macon County, NC | 32 km east | 107 nights | 28 nights | 26°F |
| Union County, GA | 33 km southwest | 104 nights | 28 nights | 25°F |
| Graham County, NC | 34 km north | 100 nights | 24 nights | 26°F |
| Rabun County, GA | 37 km southeast | 88 nights | 15 nights | 30°F |
Clay County within NC
Clay County ranks 21 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 2,231 ft, Clay County sits 1,758 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 Hayesville (1 mi NE), NC, 6 km away (close match). A normal year, not tonight's forecast: check the forecast low for the night itself. What a "fair" or "distant" station match means is in the method guide.