Frost Line Depth in Pasadena, Texas
- 2 verified codes nearby
- Checked Oct 2026
No official local value
Frost rarely reaches the ground in Pasadena.
Nearby official codes require 6–12 in (2 verified codes).
Footings still go at least 12 in (30 cm) below undisturbed ground (IRC R403.1.4).
Source and how we checked
We searched this place’s own code and website and found no published frost line depth.
Climate: 4 nights a year at or below 32 °F (NOAA 1991–2020, Houston Hobby Airport, 7.9 mi).
Checked Oct 2026. Report a correction
Does Pasadena have an official frost line depth?
No adopted frost line depth found for Pasadena 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 Pasadena’s own number.
What frost line depth does Pasadena use for footings under Table R301.2(1)? Is it 6 in, like Houston?
How deep do footings, decks and water lines need to be in Pasadena?
Drawn with the deepest nearby official value (12 in). Confirm Pasadena’s own depth before you dig.
House or garage footing in Pasadena: 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 Pasadena?
- J
- F
- M
- A
- M
- J
- J
- A
- S
- O
- N
- D
Pasadena never averages a low below freezing. 4 nights a year reach 32 °F or colder; Jan is coldest, with an average low of 46.1 °F.
NOAA 1991–2020 climate normals, Houston Hobby Airport station, 7.9 mi away, elevation 44 ft.
Monthly temperatures as a table
| °F | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Low | 46.1 | 50.1 | 55.9 | 61.8 | 69.3 | 74.9 | 76.6 | 76.7 | 72.9 | 63.9 | 54 | 48 |
| High | 63.8 | 67.6 | 73.4 | 79.3 | 85.9 | 91 | 92.9 | 93.5 | 89.3 | 82.1 | 72.6 | 65.7 |
Pasadena has fewer freezing nights than 154 of the 168 other Texas places we track. The Texas median is 32. Coldest: Amarillo; mildest: Brownsville.
What frost line depth do towns near Pasadena use?
2 official codes near Pasadena are verified; each links to its document.
| Place | Verified frost line | Distance |
|---|---|---|
| Houston | 6 in | 17 mi away |
| Missouri City | 12 in | 24 mi away |
How likely is the soil in Pasadena to heave?
USDA rates the sampled soil around Pasadena as 100% none for frost action (main soils: Lake Charles, Bernard, Mocarey).
USDA NRCS soil survey, 9 sample points within 2 mi. Higher frost action means more risk of heave; see frost heave.
Pasadena at a glance
- Frost line depth
- No official local value
- County
- Harris County
- Population (2023 est.)
- 146,716
- Mean annual temperature
- 71.1 °F
- ZIP codes (12)
- 77017 · 77058 · 77059 · 77502 · 77503 · 77504 · 77505 · 77506 · 77507 · 77536 · 77571 · 77586