Will Pipes Freeze in Duplin County, NC? 9 nights a Year
Freeze nights in Duplin County
In a normal year Duplin County, NC gets 9 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 24% of US counties.
Risk level: Occasional. The risk season runs December to February, worst in January.
It depends where the pipe is
| Pipe | Freezes near | Nights a year |
|---|---|---|
| Outdoor spigot, open crawlspace | 32°F | 65 nights |
| Bare pipe in garage, attic or outside wall | 20°F | 9 nights |
| Insulated pipe in unheated space | 10°F | under 1 night |
| Inside the heated house | 0°F | none |
Foam-sleeving a bare pipe in unheated space takes it from 9 nights of risk to under 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 10/30, last around 04/07. For 20°F: 12/06 to 02/28.
How cold Duplin County nights get
Average winter (Dec-Feb) low: 32°F; the coldest month, January, averages 30°F overnight. 7 months normally bring at least one night below 32°F (Jan, Feb, Mar, Apr, Oct, Nov, Dec).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 30°F | 32°F | 38°F | 46°F | 56°F | 64°F | 69°F | 67°F | 62°F | 49°F | 39°F | 33°F |
Duplin County next to its neighbours
Sampson County, NC, 40 km west, gets 6 nights.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Duplin County, NC | - | 65 nights | 9 nights | 30°F |
| Sampson County, NC | 40 km west | 59 nights | 6 nights | 32°F |
| Lenoir County, NC | 43 km northeast | 56 nights | 6 nights | 33°F |
| Onslow County, NC | 44 km southeast | 58 nights | 6 nights | 33°F |
| Pender County, NC | 47 km south | 57 nights | 6 nights | 32°F |
| Wayne County, NC | 47 km north | 47 nights | 4 nights | 34°F |
| Jones County, NC | 54 km east | 62 nights | 7 nights | 32°F |
Duplin County within NC
Duplin County ranks 60 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 89 ft, Duplin County sits 384 ft below the state's median county elevation of 473 ft.
What to do here
- Keep a night-of routine: drip, open cabinets, keep the heat at 55F or above.
- Foam-sleeve any pipe in the garage or crawlspace once; it is cheap and lasts years.
Which pipe gets which threshold: the 32, 20, 10 and 0 rule.
Where this comes from
NOAA 1991-2020 climate normals, blended from 3 nearby stations and adjusted for elevation; closest is Warsaw (5 mi E), NC, 11 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.