PipeFreezeNights

Will Pipes Freeze in Harlan County, KY? 30 nights a Year

Freeze nights in Harlan County

In a normal year Harlan County, KY gets 30 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 46% of US counties.

Risk level: Regular. The risk season runs November to March, worst in January.

It depends where the pipe is

PipeFreezes nearNights a year
Outdoor spigot, open crawlspace32°F109 nights
Bare pipe in garage, attic or outside wall20°F30 nights
Insulated pipe in unheated space10°F6 nights
Inside the heated house0°Funder 1 night

Foam-sleeving a bare pipe in unheated space takes it from 30 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.

  1. Jul
  2. Aug
  3. Sep
  4. Oct
  5. 2Nov
  6. 7Dec
  7. 11Jan
  8. 7Feb
  9. 3Mar
  10. Apr
  11. May
  12. Jun

First 32°F night is usually around 10/30, last around 04/15. For 20°F: 12/01 to 03/05.

How cold Harlan County nights get

Average winter (Dec-Feb) low: 27°F; the coldest month, January, averages 25°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: 6 nights a year, and under 1 night below zero.

JanFebMarAprMayJunJulAugSepOctNovDec
25°F27°F33°F41°F51°F60°F64°F63°F56°F44°F33°F28°F

Harlan County next to its neighbours

Lee County, VA, 19 km southeast, gets 34 nights below 20°F to Harlan County's 30 nights. Leslie County, KY, 29 km northwest, gets 24 nights.

CountyDistanceBelow 32°FBelow 20°FJan low
Harlan County, KY-109 nights30 nights25°F
Lee County, VA19 km southeast114 nights34 nights24°F
Leslie County, KY29 km northwest103 nights24 nights25°F
Hancock County, TN38 km south104 nights30 nights24°F
Perry County, KY42 km north104 nights23 nights25°F
Letcher County, KY43 km northeast110 nights25 nights24°F
Bell County, KY43 km west110 nights30 nights24°F

Harlan County within KY

Harlan County ranks 52 of 120 KY counties for nights below 20°F. The most is Shelby County, KY at 55 nights, with a 22°F average winter low. The fewest is Lyon County, KY: 15 nights, winter lows near 32°F. At 1,900 ft, Harlan County sits 1,103 ft above the state's median county elevation of 797 ft.

What to do here

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 Baxter, KY, 10 km away (fair 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.