Will Pipes Freeze in McDowell County, NC? 27 nights a Year
Freeze nights in McDowell County
In a normal year McDowell County, NC gets 27 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 43% 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 | 27 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 27 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 11/01, last around 04/05. For 20°F: 12/10 to 02/25.
How cold McDowell County nights get
Average winter (Dec-Feb) low: 29°F; the coldest month, January, averages 27°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, February, December: 4 nights a year, and under 1 night below zero.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 27°F | 30°F | 36°F | 44°F | 53°F | 62°F | 66°F | 65°F | 59°F | 46°F | 36°F | 30°F |
McDowell County next to its neighbours
Mitchell County, NC, 38 km north, gets 30 nights below 20°F to McDowell County's 27 nights. Burke County, NC, 32 km east, gets 17 nights.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| McDowell County, NC | - | 103 nights | 27 nights | 27°F |
| Burke County, NC | 32 km east | 90 nights | 17 nights | 28°F |
| Yancey County, NC | 33 km northwest | 105 nights | 27 nights | 25°F |
| Rutherford County, NC | 33 km south | 96 nights | 19 nights | 27°F |
| Mitchell County, NC | 38 km north | 111 nights | 30 nights | 24°F |
| Buncombe County, NC | 44 km west | 82 nights | 16 nights | 28°F |
| Avery County, NC | 45 km north | 122 nights | 44 nights | 22°F |
McDowell County within NC
McDowell County ranks 11 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 1,482 ft, McDowell County sits 1,009 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.
When to have the house ready: when freeze season starts.
Where this comes from
NOAA 1991-2020 climate normals, blended from 3 nearby stations and adjusted for elevation; closest is Marion, NC, 4 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.