Will Pipes Freeze in Harper County, KS? 30 nights a Year
Freeze nights in Harper County
In a normal year Harper County, KS 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
| Pipe | Freezes near | Nights a year |
|---|---|---|
| Outdoor spigot, open crawlspace | 32°F | 101 nights |
| Bare pipe in garage, attic or outside wall | 20°F | 30 nights |
| Insulated pipe in unheated space | 10°F | 7 nights |
| Inside the heated house | 0°F | under 1 night |
Foam-sleeving a bare pipe in unheated space takes it from 30 nights of risk to 7 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 10/30, last around 04/09. For 20°F: 11/26 to 03/05.
How cold Harper County nights get
Average winter (Dec-Feb) low: 24°F; the coldest month, January, averages 22°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, March, December: 7 nights a year, and under 1 night below zero.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 22°F | 26°F | 34°F | 44°F | 55°F | 65°F | 70°F | 68°F | 60°F | 47°F | 34°F | 25°F |
Harper County next to its neighbours
Kingman County, KS, 41 km north, gets 42 nights below 20°F to Harper County's 30 nights.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Harper County, KS | - | 101 nights | 30 nights | 22°F |
| Kingman County, KS | 41 km north | 116 nights | 42 nights | 19°F |
| Grant County, OK | 51 km southeast | 104 nights | 31 nights | 23°F |
| Sumner County, KS | 51 km east | 108 nights | 35 nights | 22°F |
| Barber County, KS | 55 km west | 116 nights | 41 nights | 21°F |
| Alfalfa County, OK | 56 km southwest | 104 nights | 30 nights | 24°F |
| Sedgwick County, KS | 77 km northeast | 106 nights | 33 nights | 22°F |
Harper County within KS
Harper County ranks 103 of 105 KS counties for nights below 20°F. The most is Rawlins County, KS at 83 nights, with a 16°F average winter low. The fewest is Cherokee County, KS: 27 nights, winter lows near 26°F. At 1,371 ft, Harper County sits 155 ft below the state's median county elevation of 1,526 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.
Why 20°F is the line for a garage pipe: how cold before pipes freeze.
Where this comes from
NOAA 1991-2020 climate normals, blended from 3 nearby stations and adjusted for elevation; closest is Anthony, KS, 5 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.