Frost Line Depth in Palm Desert, CA: Frost Rarely Reaches the Ground

No official local value

Frost rarely reaches the ground in Palm Desert.

Nearby official codes require 12 in (1 verified code).

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: 1 night a year at or below 32 °F (NOAA 1991–2020, Indio Fire Stn, 8.8 mi).

Checked Oct 2026. Report a correction

Footings Deck Water line Fence post

12 in1 verified code within 75 mi
1nights a year at or below 32 °F
100%of nearby soil rated “none” for frost action (USDA)

Does Palm Desert have an official frost line depth?

No adopted frost line depth found for Palm Desert 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 Palm Desert’s own number.

What frost line depth does Palm Desert use for footings under Table R301.2(1)? Is it 12 in, like Mission Viejo?

Call 811 at least a few working days before you dig, so buried lines are marked.
Confirm the frost line depth with the Palm Desert building department.
Ask whether your project needs a permit (decks, larger sheds and footings usually do).
Dig below 12 in (the deepest nearby value) unless the building department tells you otherwise.
Book the footing inspection before you pour concrete.

How deep do footings, decks and water lines need to be in Palm Desert?

Drawn with the deepest nearby official value (12 in). Confirm Palm Desert’s own depth before you dig.

House or garage footing Deck footing Water service line Fence post

House or garage footing in Palm Desert: dig at least 12 in (30 cm). Below the frost line and at least 12 in deep (IRC R403.1.4).

Minimum depths in Palm Desert with a 12 in frost line
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 Palm Desert?

Palm Desert never averages a low below freezing. 1 night a year reach 32 °F or colder; Dec is coldest, with an average low of 45.3 °F.

NOAA 1991–2020 climate normals, Indio Fire Stn station, 8.8 mi away, elevation -21 ft.

Monthly temperatures as a table

°F	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Low	46.8	51	57.2	63.1	69.3	76.6	82.5	82.5	76.5	65.8	53	45.3
High	70.3	73.3	79.9	85.8	93.1	101.7	105.8	105.2	100.8	90.5	78	68.8

Palm Desert has fewer freezing nights than 135 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 Palm Desert use?

One official code near Palm Desert is verified.

Official frost line depths near Palm Desert
Place	Verified frost line	Distance
Mission Viejo	12 in	75 mi away

How likely is the soil in Palm Desert to heave?

None 100%

USDA rates the sampled soil around Palm Desert as 100% none for frost action (main soils: Myoma, Carsitas, Rock outcrop).

USDA NRCS soil survey, 9 sample points within 2 mi. Higher frost action means more risk of heave; see frost heave.

Palm Desert at a glance

Frost line depth: No official local value
County: Riverside County
Population (2023 est.): 51,951
Mean annual temperature: 76 °F
ZIP codes (4): 92203 · 92210 · 92211 · 92260