Frost Line Depth in League City, Texas
- 2 verified codes nearby
- Checked Oct 2026
No official local value
No official frost line depth is published for League City.
Nearby official codes require 6–12 in (2 verified codes).
Source and how we checked
We searched this place’s own code and website and found no published frost line depth.
Climate: 9 nights a year at or below 32 °F (NOAA 1991–2020, Houston Nwso, 2 mi).
Checked Oct 2026. Report a correction
Does League City have an official frost line depth?
No adopted frost line depth found for League City in its official documents (checked Oct 2026). The nearest official values, from codes we verified, are 6 to 12 in. Use the deepest of them until the building department confirms League City’s own number.
What frost line depth does League City use for footings under Table R301.2(1)? Is it 12 in, like Missouri City?
How deep do footings, decks and water lines need to be in League City?
Drawn with the deepest nearby official value (12 in). Confirm League City’s own depth before you dig.
House or garage footing in League City: 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 League City?
- J
- F
- M
- A
- M
- J
- J
- A
- S
- O
- N
- D
League City never averages a low below freezing. 9 nights a year reach 32 °F or colder; Jan is coldest, with an average low of 45.7 °F.
NOAA 1991–2020 climate normals, Houston Nwso station, 2 mi away, elevation 19 ft.
Monthly temperatures as a table
| °F | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Low | 45.7 | 49.8 | 55.6 | 61.3 | 69.1 | 74.7 | 76 | 75.9 | 71.8 | 62.6 | 53.4 | 47.4 |
| High | 63.8 | 67.4 | 73 | 78.4 | 85 | 90 | 91.8 | 92.3 | 88.4 | 81.7 | 72.5 | 65.8 |
League City has fewer freezing nights than 136 of the 168 other Texas places we track. The Texas median is 32. Coldest: Amarillo; mildest: Brownsville.
What frost line depth do towns near League City use?
2 official codes near League City are verified; each links to its document.
| Place | Verified frost line | Distance |
|---|---|---|
| Missouri City | 12 in | 26 mi away |
| Houston | 6 in | 26 mi away |
How likely is the soil in League City to heave?
USDA rates the sampled soil around League City as 100% none for frost action (main soils: Lake Charles, Bernard, Vamont).
USDA NRCS soil survey, 9 sample points within 2 mi. Higher frost action means more risk of heave; see frost heave.
League City at a glance
- Frost line depth
- No official local value
- County
- Galveston County
- Population (2023 est.)
- 116,320
- Mean annual temperature
- 70.5 °F
- ZIP codes (6)
- 77511 · 77539 · 77546 · 77565 · 77573 · 77598