Will Pipes Freeze in Doniphan County, KS? 52 nights a Year
Freeze nights in Doniphan County
In a normal year Doniphan County, KS gets 52 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 66% of US counties.
Risk level: Severe. 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 | 121 nights |
| Bare pipe in garage, attic or outside wall | 20°F | 52 nights |
| Insulated pipe in unheated space | 10°F | 21 nights |
| Inside the heated house | 0°F | 7 nights |
Foam-sleeving a bare pipe in unheated space takes it from 52 nights of risk to 21 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 10/19, last around 04/19. For 20°F: 11/16 to 03/18.
How cold Doniphan County nights get
Average winter (Dec-Feb) low: 20°F; the coldest month, January, averages 17°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, November, December: 21 nights a year, and 7 nights below zero.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 17°F | 21°F | 31°F | 42°F | 53°F | 63°F | 67°F | 65°F | 56°F | 44°F | 32°F | 22°F |
Doniphan County next to its neighbours
Holt County, MO, 35 km north, gets 58 nights below 20°F to Doniphan County's 52 nights. Atchison County, KS, 32 km southwest, gets 47 nights.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Doniphan County, KS | - | 121 nights | 52 nights | 17°F |
| Atchison County, KS | 32 km southwest | 116 nights | 47 nights | 17°F |
| Buchanan County, MO | 32 km southeast | 122 nights | 51 nights | 17°F |
| Holt County, MO | 35 km north | 127 nights | 58 nights | 15°F |
| Brown County, KS | 36 km west | 132 nights | 62 nights | 15°F |
| Andrew County, MO | 37 km northeast | 127 nights | 56 nights | 16°F |
| Platte County, MO | 56 km southeast | 109 nights | 42 nights | 19°F |
Doniphan County within KS
Doniphan County ranks 44 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 1,094 ft, Doniphan County sits 431 ft below the state's median county elevation of 1,526 ft.
What to do here
- Treat it as a building fix, not a night-of routine: insulate, heat tape, seal crawlspace vents.
- An automatic leak shutoff pays for itself if one burst is avoided.
- Know where the main shutoff is before the first hard freeze.
The dates to be done by: when freeze season starts and ends.
Where this comes from
NOAA 1991-2020 climate normals, blended from 3 nearby stations and adjusted for elevation; closest is Troy (3 mi N), KS, 7 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.