Will Pipes Freeze in Madison County, NC? 34 nights a Year
Freeze nights in Madison County
In a normal year Madison County, NC gets 34 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 50% 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 | 112 nights |
| Bare pipe in garage, attic or outside wall | 20°F | 34 nights |
| Insulated pipe in unheated space | 10°F | 6 nights |
| Inside the heated house | 0°F | under 1 night |
Foam-sleeving a bare pipe in unheated space takes it from 34 nights of risk to 6 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 10/18, last around 04/28. For 20°F: 11/15 to 03/19.
How cold Madison County nights get
Average winter (Dec-Feb) low: 26°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, February, December: 6 nights a year, and under 1 night below zero.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 25°F | 27°F | 33°F | 40°F | 49°F | 58°F | 62°F | 61°F | 55°F | 42°F | 32°F | 27°F |
Madison County next to its neighbours
Haywood County, NC, 42 km southwest, gets 38 nights below 20°F to Madison County's 34 nights. Buncombe County, NC, 33 km southeast, gets 16 nights.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Madison County, NC | - | 112 nights | 34 nights | 25°F |
| Buncombe County, NC | 33 km southeast | 82 nights | 16 nights | 28°F |
| Yancey County, NC | 37 km east | 105 nights | 27 nights | 25°F |
| Cocke County, TN | 37 km west | 81 nights | 15 nights | 29°F |
| Greene County, TN | 37 km north | 108 nights | 34 nights | 26°F |
| Unicoi County, TN | 37 km northeast | 103 nights | 27 nights | 25°F |
| Haywood County, NC | 42 km southwest | 123 nights | 38 nights | 24°F |
Madison County within NC
Madison County ranks 7 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 2,223 ft, Madison County sits 1,750 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 Marshall, NC, 8 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.