Will Pipes Freeze in Marshall County, OK? 10 nights a Year
Freeze nights in Marshall County
In a normal year Marshall County, OK gets 10 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 26% of US counties.
Risk level: Occasional. The risk season runs December to March, worst in January.
It depends where the pipe is
| Pipe | Freezes near | Nights a year |
|---|---|---|
| Outdoor spigot, open crawlspace | 32°F | 62 nights |
| Bare pipe in garage, attic or outside wall | 20°F | 10 nights |
| Insulated pipe in unheated space | 10°F | 1 night |
| Inside the heated house | 0°F | none |
Foam-sleeving a bare pipe in unheated space takes it from 10 nights of risk to 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 11/08, last around 03/27. For 20°F: 12/15 to 02/18.
How cold Marshall 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). Nights below 10°F, cold enough to freeze insulated pipe in an unheated space, come in January: 1 night a year, and none below zero.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 30°F | 34°F | 42°F | 50°F | 60°F | 69°F | 73°F | 71°F | 63°F | 52°F | 41°F | 33°F |
Marshall County next to its neighbours
Johnston County, OK, 34 km north, gets 13 nights below 20°F to Marshall County's 10 nights. Grayson County, TX, 46 km south, gets 7 nights.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Marshall County, OK | - | 62 nights | 10 nights | 30°F |
| Johnston County, OK | 34 km north | 68 nights | 13 nights | 30°F |
| Love County, OK | 44 km west | 67 nights | 13 nights | 29°F |
| Grayson County, TX | 46 km south | 44 nights | 7 nights | 34°F |
| Bryan County, OK | 47 km east | 57 nights | 9 nights | 32°F |
| Carter County, OK | 54 km northwest | 60 nights | 11 nights | 30°F |
| Murray County, OK | 58 km northwest | 75 nights | 18 nights | 28°F |
Marshall County within OK
Marshall County ranks 75 of 77 OK counties for nights below 20°F. The most is Beaver County, OK at 55 nights, with a 21°F average winter low. The fewest is Choctaw County, OK: 7 nights, winter lows near 34°F. At 876 ft, Marshall County sits 133 ft below the state's median county elevation of 1,009 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.
Few hard nights means pipes are rarely built for them; see freezes in warm places.
Where this comes from
NOAA 1991-2020 climate normals, blended from 3 nearby stations and adjusted for elevation; closest is Madill, OK, 7 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.