Frost Line Depth in West Valley City, Utah
- 5 verified codes nearby
- Checked Oct 2026
No official local value
No official frost line depth is published for West Valley City.
Nearby official codes require 30 in (5 verified codes).
Source and how we checked
We searched this place’s own code and website and found no published frost line depth.
Climate: 112 nights a year at or below 32 °F (NOAA 1991–2020, Salt Lake City International Airport, 6.6 mi).
Checked Oct 2026. Report a correction
Does West Valley City have an official frost line depth?
No adopted frost line depth found for West Valley City in its official documents (checked Oct 2026). The nearest official values, from codes we verified, are 30 in. Use the deepest of them until the building department confirms West Valley City’s own number.
What frost line depth does West Valley City use for footings under Table R301.2(1)? Is it 30 in, like West Jordan?
How deep do footings, decks and water lines need to be in West Valley City?
Drawn with the deepest nearby official value (30 in). Confirm West Valley City’s own depth before you dig.
House or garage footing in West Valley City: dig at least 30 in (76 cm). Below the frost line and at least 12 in deep (IRC R403.1.4).
| Project | Depth | Rule |
|---|---|---|
| House or garage footing | 30 in | Below the frost line and at least 12 in deep (IRC R403.1.4) |
| Deck footing (attached) | 30 in | Below the frost line and at least 12 in deep (IRC R507.3) |
| Water service line | 36 in | 6 in below the frost line and at least 12 in deep (IRC P2603.5) |
| Fence post bottom | 30 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 West Valley City?
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- M
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Average lows are at or below freezing from Dec to Feb. 112 nights a year reach 32 °F or colder; Jan is coldest, with an average low of 24.2 °F.
NOAA 1991–2020 climate normals, Salt Lake City International Airport station, 6.6 mi away, elevation 4,225 ft.
Monthly temperatures as a table
| °F | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Low | 24.2 | 28.6 | 36.3 | 41.8 | 50.4 | 59.1 | 68.2 | 66.6 | 56.3 | 43.6 | 32.8 | 25.3 |
| High | 38.6 | 44.7 | 55.3 | 61.9 | 72.6 | 84.1 | 94 | 91.7 | 80.6 | 65.5 | 50.7 | 39 |
West Valley City has fewer freezing nights than 18 of the 25 other Utah places we track. The Utah median is 118. Coldest: Summit County; mildest: St. George.
What frost line depth do towns near West Valley City use?
5 official codes near West Valley City are verified; each links to its document.
| Place | Verified frost line | Distance |
|---|---|---|
| West Jordan | 30 in | 6 mi away |
| Salt Lake City | 30 in | 7 mi away |
| South Jordan | 30 in | 9 mi away |
| Millcreek | 30 in | 10 mi away |
| Riverton | 30 in | 12 mi away |
How likely is the soil in West Valley City to heave?
USDA rates the sampled soil around West Valley City as 38% moderate, 62% high for frost action (main soils: Lasil, Saltair, Hillfield).
USDA NRCS soil survey, 9 sample points within 2 mi. Higher frost action means more risk of heave; see frost heave.
West Valley City at a glance
- Frost line depth
- No official local value
- County
- Salt Lake County
- Population (2023 est.)
- 134,470
- Mean annual temperature
- 54.6 °F
- ZIP codes (8)
- 84044 · 84081 · 84118 · 84119 · 84120 · 84123 · 84128 · 84129