Frost Line Depth in Davis County, Utah
- 5 verified codes nearby
- Checked Oct 2026
No official local value
No official frost line depth is published for Davis County.
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: 122 nights a year at or below 32 °F (NOAA 1991–2020, Farmington 3 Nw, 14.1 mi).
Checked Oct 2026. Report a correction
Does Davis County have an official frost line depth?
No adopted frost line depth found for Davis County 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 Davis County’s own number.
What frost line depth does Davis County use for footings under Table R301.2(1)? Is it 30 in, like Ogden?
How deep do footings, decks and water lines need to be in Davis County?
Drawn with the deepest nearby official value (30 in). Confirm Davis County’s own depth before you dig.
House or garage footing in Davis County: 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 Davis County?
- J
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- M
- A
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Average lows are at or below freezing from Nov to Feb. 122 nights a year reach 32 °F or colder; Jan is coldest, with an average low of 21.5 °F.
NOAA 1991–2020 climate normals, Farmington 3 Nw station, 14.1 mi away, elevation 4,380 ft.
Monthly temperatures as a table
| °F | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Low | 21.5 | 26.5 | 33.3 | 39.4 | 47.2 | 56.3 | 63.8 | 62.1 | 52.6 | 40.1 | 31.2 | 23.5 |
| High | 36.4 | 42.3 | 52.5 | 59.3 | 69.9 | 81.2 | 90.7 | 88.7 | 78.6 | 64.3 | 49.1 | 37.9 |
Davis County has more freezing nights than 15 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 Davis County use?
5 official codes near Davis County are verified; each links to its document.
| Place | Verified frost line | Distance |
|---|---|---|
| Ogden | 30 in | 18 mi away |
| Salt Lake City | 30 in | 23 mi away |
| Millcreek | 30 in | 31 mi away |
| West Jordan | 30 in | 32 mi away |
| South Jordan | 30 in | 35 mi away |
How likely is the soil in Davis County to heave?
USDA rates the sampled soil around Davis County as 40% low, 60% moderate, 1% high for frost action (main soils: Ridd, Dynal, Kilburn).
USDA NRCS soil survey, 9 sample points within 2 mi. Higher frost action means more risk of heave; see frost heave.
Davis County at a glance
- Frost line depth
- No official local value
- Population (2023 est.)
- 373,207
- Mean annual temperature
- 52 °F
- ZIP codes (13)
- 84010 · 84014 · 84015 · 84025 · 84037 · 84040 · 84041 · 84054 · 84056 · 84075 · 84087 · 84315 · 84405