Frost Line Depth in Cedar Park, Texas
- Cedar Park’s adopted code
- Checked Oct 2026
- Sources
State-set value
Under 6 in
Cedar Park's building authority lists a frost line depth of less than 6 in.
Source and how we checked
Document: ecode360.com
Climate: 27 nights a year at or below 32 °F (NOAA 1991–2020, Austin Great Hills, 7.3 mi).
Checked Oct 2026. Report a correction
How deep is the frost line in Cedar Park?
Cedar Park's building authority lists a frost line depth of less than 6 in. Footings, piers and other permanent supports still go at least 12 in below undisturbed ground (IRC R403.1.4).
Who sets the frost line depth in Cedar Park?
Texas leaves the frost line depth to each city or county, and Cedar Park fills it in when it adopts the residential code. The value above comes from Cedar Park’s own document on ecode360.com. See how Texas sets frost line depth.
How deep do footings, decks and water lines need to be in Cedar Park?
House or garage footing in Cedar Park: 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 | 12 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 Cedar Park?
- J
- F
- M
- A
- M
- J
- J
- A
- S
- O
- N
- D
Cedar Park never averages a low below freezing. 27 nights a year reach 32 °F or colder; Jan is coldest, with an average low of 37.6 °F.
NOAA 1991–2020 climate normals, Austin Great Hills station, 7.3 mi away, elevation 880 ft.
Monthly temperatures as a table
| °F | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Low | 37.6 | 40.9 | 47.9 | 54.8 | 63.7 | 70.4 | 72.6 | 72.4 | 66.5 | 57 | 47 | 38.5 |
| High | 59.7 | 65.4 | 71.9 | 78.8 | 84.4 | 92.4 | 95.7 | 96.3 | 89.4 | 80.3 | 68.6 | 61.4 |
Cedar Park has fewer freezing nights than 101 of the 168 other Texas places we track. The Texas median is 32. Coldest: Amarillo; mildest: Brownsville.
What frost line depth do towns near Cedar Park use?
3 official codes near Cedar Park are verified; each links to its document.
How likely is the soil in Cedar Park to heave?
USDA rates the sampled soil around Cedar Park as 100% none for frost action (main soils: Eckrant, Georgetown, Crawford).
USDA NRCS soil survey, 9 sample points within 2 mi. Higher frost action means more risk of heave; see frost heave.
How do you confirm the frost line before you dig in Cedar Park?
Cedar Park at a glance
- Frost line depth
- Under 6 in
- County
- Williamson County
- Population (2023 est.)
- 77,516
- Mean annual temperature
- 67.2 °F
- ZIP codes (5)
- 78613 · 78641 · 78717 · 78726 · 78750