Will Pipes Freeze in Karnes County, TX? under 1 night a Year
Freeze nights in Karnes County
In a normal year Karnes County, TX gets under 1 night at or below 20°F, the point where bare pipes in a garage, attic or outside wall start to freeze. That is more than 2% of US counties.
Risk level: Rare.
It depends where the pipe is
| Pipe | Freezes near | Nights a year |
|---|---|---|
| Outdoor spigot, open crawlspace | 32°F | 11 nights |
| Bare pipe in garage, attic or outside wall | 20°F | under 1 night |
| Insulated pipe in unheated space | 10°F | none |
| Inside the heated house | 0°F | none |
Month by month
Nights at or below 20°F in a normal year.
First 32°F night is usually around 12/09, last around 02/16.
How cold Karnes County nights get
Average winter (Dec-Feb) low: 44°F; the coldest month, January, averages 42°F overnight. 5 months normally bring at least one night below 32°F (Jan, Feb, Mar, Nov, Dec).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 42°F | 46°F | 52°F | 59°F | 66°F | 72°F | 74°F | 73°F | 69°F | 60°F | 51°F | 44°F |
Karnes County next to its neighbours
Wilson County, TX, 37 km northwest, gets 1 night below 20°F to Karnes County's under 1 night.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Karnes County, TX | - | 11 nights | under 1 night | 42°F |
| Wilson County, TX | 37 km northwest | 25 nights | 1 night | 39°F |
| Goliad County, TX | 50 km southeast | 13 nights | under 1 night | 43°F |
| DeWitt County, TX | 51 km east | 21 nights | under 1 night | 42°F |
| Bee County, TX | 56 km south | 9 nights | under 1 night | 44°F |
| Atascosa County, TX | 67 km west | 19 nights | under 1 night | 41°F |
| Live Oak County, TX | 68 km southwest | 8 nights | under 1 night | 43°F |
Karnes County within TX
Karnes County ranks 232 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 304 ft, Karnes County sits 689 ft below the state's median county elevation of 992 ft.
What to do here
- Watch the forecast for a sub-threshold night.
- That night: drip the faucet on an outside wall, open the sink cabinet.
Why rare cold catches people out - freezes in places that rarely freeze.
Where this comes from
NOAA 1991-2020 climate normals, blended from 3 nearby stations and adjusted for elevation; closest is Karnes City (2 mi N), TX, 2 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.