Frost Line Depth in Atascosa County, Texas
- Texas range from verified codes
- Checked Oct 2026
No official local value
No official frost line depth is published for Atascosa County.
No verified code nearby; verified Texas codes range 0–12 in.
Source and how we checked
We searched this place’s own code and website and found no published frost line depth.
Climate: 19 nights a year at or below 32 °F (NOAA 1991–2020, Pleasanton, 5.9 mi).
Checked Oct 2026. Report a correction
Does Atascosa County have an official frost line depth?
No adopted frost line depth found for Atascosa County in its official documents (checked Oct 2026). No verified code lies near Atascosa County; the Texas codes we verified range from 0 to 12 in. Ask the building department for Atascosa County’s own number before you dig.
What frost line depth does Atascosa County use for footings under Table R301.2(1)?
How deep do footings, decks and water lines need to be in Atascosa County?
Drawn with the deepest Texas official value (12 in). Confirm Atascosa County’s own depth before you dig.
House or garage footing in Atascosa County: dig at least 12 in (30 cm). Below the frost line and at least 12 in deep (IRC R403.1.4).
| Project | Depth | Rule |
|---|---|---|
| House or garage footing | 12 in | Below the frost line and at least 12 in deep (IRC R403.1.4) |
| Deck footing (attached) | 12 in | Below the frost line and at least 12 in deep (IRC R507.3) |
| Water service line | 18 in | 6 in below the frost line and at least 12 in deep (IRC P2603.5) |
| Fence post bottom | 12 in | No code rule; common practice is below the frost line |
Work out posts, concrete and footing sizes with the fence post depth calculator or the deck footing calculator.
How cold does it get in Atascosa County?
- J
- F
- M
- A
- M
- J
- J
- A
- S
- O
- N
- D
Atascosa County never averages a low below freezing. 19 nights a year reach 32 °F or colder; Jan is coldest, with an average low of 39.9 °F.
NOAA 1991–2020 climate normals, Pleasanton station, 5.9 mi away, elevation 358 ft.
Monthly temperatures as a table
| °F | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Low | 39.9 | 44.4 | 51.7 | 58.1 | 66.9 | 72.7 | 74.3 | 73.9 | 69.2 | 59.4 | 49.6 | 42 |
| High | 65.1 | 68.9 | 75.7 | 82.7 | 88.6 | 94.1 | 96.4 | 97.5 | 91.8 | 84.2 | 73.7 | 66.3 |
Atascosa County has fewer freezing nights than 116 of the 168 other Texas places we track. The Texas median is 32. Coldest: Amarillo; mildest: Brownsville.
How likely is the soil in Atascosa County to heave?
USDA rates the sampled soil around Atascosa County as 100% none for frost action (main soils: Hanis, Floresville, Elmendorf).
USDA NRCS soil survey, 9 sample points within 2 mi. Higher frost action means more risk of heave; see frost heave.
Atascosa County at a glance
- Frost line depth
- No official local value
- Population (2023 est.)
- 51,784
- Mean annual temperature
- 70.3 °F
- ZIP codes (16)
- 78005 · 78008 · 78011 · 78012 · 78026 · 78050 · 78052 · 78062 · 78064 · 78065 · 78069 · 78073 · 78113 · 78114 · 78118 · 78264