Will Pipes Freeze in Trinity County, TX? 1 night a Year
Freeze nights in Trinity County
In a normal year Trinity County, TX gets 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 7% of US counties.
Risk level: Rare. The risk season runs January to January, worst in January.
It depends where the pipe is
| Pipe | Freezes near | Nights a year |
|---|---|---|
| Outdoor spigot, open crawlspace | 32°F | 27 nights |
| Bare pipe in garage, attic or outside wall | 20°F | 1 night |
| Insulated pipe in unheated space | 10°F | none |
| Inside the heated house | 0°F | none |
Foam-sleeving a bare pipe in unheated space takes it from 1 night of risk to none. 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 11/26, last around 03/02. For 20°F: 01/05 to 01/09.
How cold Trinity County nights get
Average winter (Dec-Feb) low: 40°F; the coldest month, January, averages 38°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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 38°F | 42°F | 47°F | 55°F | 64°F | 70°F | 72°F | 72°F | 67°F | 55°F | 46°F | 40°F |
Trinity County next to its neighbours
The six closest counties all sit within a night of Trinity County.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Trinity County, TX | - | 27 nights | 1 night | 38°F |
| Houston County, TX | 36 km northwest | 31 nights | 2 nights | 36°F |
| Polk County, TX | 46 km southeast | 36 nights | 1 night | 40°F |
| Angelina County, TX | 54 km east | 33 nights | 1 night | 37°F |
| Walker County, TX | 56 km southwest | 19 nights | under 1 night | 41°F |
| San Jacinto County, TX | 58 km south | 31 nights | 1 night | 39°F |
| Madison County, TX | 76 km west | 35 nights | 2 nights | 37°F |
Trinity County within TX
Trinity County ranks 187 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 307 ft, Trinity County sits 685 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.
A few nights a year catches houses that were never built for it: pipes 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 Groveton, TX, 11 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.