Frost Line Depth in Cathedral City, California
- 2 verified codes nearby
- Checked Oct 2026
No official local value
Frost rarely reaches the ground in Cathedral City.
Nearby official codes require 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: 0 nights a year at or below 32 °F (NOAA 1991–2020, Palm Springs Regional Airport, 2.5 mi).
Checked Oct 2026. Report a correction
Does Cathedral City have an official frost line depth?
No adopted frost line depth found for Cathedral City in its official documents (checked Oct 2026). The nearest official values, from codes we verified, are 12 in. Use the deepest of them until the building department confirms Cathedral City’s own number.
What frost line depth does Cathedral City use for footings under Table R301.2(1)? Is it 12 in, like Chino?
How deep do footings, decks and water lines need to be in Cathedral City?
Drawn with the deepest nearby official value (12 in). Confirm Cathedral City’s own depth before you dig.
House or garage footing in Cathedral 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 Cathedral City?
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Cathedral City never averages a low below freezing. 0 nights a year reach 32 °F or colder; Dec is coldest, with an average low of 46.2 °F.
NOAA 1991–2020 climate normals, Palm Springs Regional Airport station, 2.5 mi away, elevation 421 ft.
Monthly temperatures as a table
| °F | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Low | 47.6 | 49.7 | 54.4 | 59.1 | 65.9 | 72.7 | 79.4 | 79.8 | 74.4 | 64.5 | 53.4 | 46.2 |
| High | 70.5 | 73.7 | 80.6 | 86.7 | 94.7 | 103.6 | 108.6 | 108.1 | 101.8 | 91.1 | 78.7 | 69.2 |
Cathedral City has fewer freezing nights than 166 of the 208 other California places we track. The California median is 3. Coldest: El Dorado County; mildest: San Diego.
What frost line depth do towns near Cathedral City use?
2 official codes near Cathedral City are verified; each links to its document.
| Place | Verified frost line | Distance |
|---|---|---|
| Chino | 12 in | 69 mi away |
| Mission Viejo | 12 in | 70 mi away |
How likely is the soil in Cathedral City to heave?
USDA rates the sampled soil around Cathedral City as 100% none for frost action (main soils: Carsitas, Myoma, Riverwash).
USDA NRCS soil survey, 9 sample points within 2 mi. Higher frost action means more risk of heave; see frost heave.
Cathedral City at a glance
- Frost line depth
- No official local value
- County
- Riverside County
- Population (2023 est.)
- 52,356
- Mean annual temperature
- 75.6 °F
- ZIP codes (4)
- 92234 · 92241 · 92264 · 92276