Will Pipes Freeze in Callahan County, TX? 7 nights a Year
Freeze nights in Callahan County
In a normal year Callahan County, TX gets 7 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 22% 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 | 54 nights |
| Bare pipe in garage, attic or outside wall | 20°F | 7 nights |
| Insulated pipe in unheated space | 10°F | under 1 night |
| Inside the heated house | 0°F | none |
Foam-sleeving a bare pipe in unheated space takes it from 7 nights of risk to under 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 11/07, last around 03/27. For 20°F: 12/16 to 02/15.
How cold Callahan County nights get
Average winter (Dec-Feb) low: 34°F; the coldest month, January, averages 32°F overnight. 7 months normally bring at least one night below 32°F (Jan, Feb, Mar, Apr, Oct, Nov, Dec).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 32°F | 35°F | 43°F | 51°F | 60°F | 68°F | 72°F | 71°F | 64°F | 53°F | 42°F | 34°F |
Callahan County next to its neighbours
Taylor County, TX, 49 km west, gets 11 nights below 20°F to Callahan County's 7 nights. Coleman County, TX, 42 km south, gets 6 nights.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Callahan County, TX | - | 54 nights | 7 nights | 32°F |
| Coleman County, TX | 42 km south | 48 nights | 6 nights | 34°F |
| Taylor County, TX | 49 km west | 62 nights | 11 nights | 31°F |
| Shackelford County, TX | 50 km north | 59 nights | 9 nights | 31°F |
| Eastland County, TX | 50 km east | 65 nights | 10 nights | 31°F |
| Brown County, TX | 69 km southeast | 55 nights | 6 nights | 32°F |
| Jones County, TX | 69 km northwest | 56 nights | 8 nights | 29°F |
Callahan County within TX
Callahan County ranks 92 of 254 TX counties for nights below 20°F. The most is Lipscomb County, TX at 57 nights, with a 20°F average winter low. The fewest is Cameron County, TX: none, winter lows near 54°F. At 1,829 ft, Callahan County sits 836 ft above the state's median county elevation of 992 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.
Which pipe gets which threshold: the 32, 20, 10 and 0 rule.
Where this comes from
NOAA 1991-2020 climate normals, blended from 3 nearby stations and adjusted for elevation; closest is Putnam, TX, 19 km away (fair 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.