Frost Line Depth in Columbia County, Georgia
- Georgia range from verified codes
- Checked Oct 2026
No official local value
No official frost line depth is published for Columbia County.
No verified code nearby; verified Georgia codes range 5–12 in.
Source and how we checked
We searched this place’s own code and website and found no published frost line depth.
Climate: 66 nights a year at or below 32 °F (NOAA 1991–2020, Appling 2 Nw, 5 mi).
Checked Oct 2026. Report a correction
Does Columbia County have an official frost line depth?
No adopted frost line depth found for Columbia County in its official documents (checked Oct 2026). No verified code lies near Columbia County; the Georgia codes we verified range from 5 to 12 in. Ask the building department for Columbia County’s own number before you dig.
What frost line depth does Columbia County use for footings under Table R301.2(1)?
How deep do footings, decks and water lines need to be in Columbia County?
Drawn with the deepest Georgia official value (12 in). Confirm Columbia County’s own depth before you dig.
House or garage footing in Columbia County: 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 Columbia County?
- J
- F
- M
- A
- M
- J
- J
- A
- S
- O
- N
- D
Columbia County never averages a low below freezing. 66 nights a year reach 32 °F or colder; Jan is coldest, with an average low of 32.4 °F.
NOAA 1991–2020 climate normals, Appling 2 Nw station, 5 mi away, elevation 396 ft.
Monthly temperatures as a table
| °F | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Low | 32.4 | 35.5 | 41.3 | 48.8 | 57.7 | 66.6 | 70.2 | 69.1 | 62.7 | 51 | 39.7 | 34.7 |
| High | 57.1 | 60.9 | 68.5 | 76.3 | 82.9 | 88.4 | 91.5 | 90 | 85.6 | 77 | 67.2 | 59.4 |
Columbia County has more freezing nights than 61 of the 74 other Georgia places we track. The Georgia median is 51. Coldest: Habersham County; mildest: Glynn County.
How likely is the soil in Columbia County to heave?
USDA rates the sampled soil around Columbia County as 100% none for frost action (main soils: Appling, Cecil, Cartecay).
USDA NRCS soil survey, 18 sample points within 5 mi. Higher frost action means more risk of heave; see frost heave.
Columbia County at a glance
- Frost line depth
- No official local value
- Population (2023 est.)
- 165,162
- Mean annual temperature
- 63.1 °F
- ZIP codes (7)
- 30802 · 30809 · 30813 · 30814 · 30824 · 30907 · 30909