Frost Line Depth in Ross County, Ohio

  • 2 verified codes nearby
  • Checked Oct 2026

No official local value

No official frost line depth is published for Ross County.

Nearby official codes require 32 in (2 verified codes).

Source and how we checked

We searched this place’s own code and website and found no published frost line depth.

Climate: 114 nights a year at or below 32 °F (NOAA 1991–2020, Chillicothe Mound City, 4.6 mi).

Checked Oct 2026. Report a correction

Does Ross County have an official frost line depth?

No adopted frost line depth found for Ross County in its official documents (checked Oct 2026). The nearest official values, from codes we verified, are 32 in. Use the deepest of them until the building department confirms Ross County’s own number.

What frost line depth does Ross County use for footings under Table R301.2(1)? Is it 32 in, like Columbus?

How deep do footings, decks and water lines need to be in Ross County?

Drawn with the deepest nearby official value (32 in). Confirm Ross County’s own depth before you dig.

Project
House or garage footing in Ross County: dig at least 32 in. grade 0 in 122436486072 12 in code minimum nearby codes 32 in, confirm locally dig 32 in

House or garage footing in Ross County: dig at least 32 in (81 cm). Below the frost line and at least 12 in deep (IRC R403.1.4).

Using the nearby official value of 32 in until Ross County confirms its own
ProjectDepthRule
House or garage footing32 inBelow the frost line and at least 12 in deep (IRC R403.1.4)
Deck footing (attached)32 inBelow the frost line and at least 12 in deep (IRC R507.3)
Water service line38 in6 in below the frost line and at least 12 in deep (IRC P2603.5)
Fence post bottom32 inNo 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 Ross County?

  1. J
  2. F
  3. M
  4. A
  5. M
  6. J
  7. J
  8. A
  9. S
  10. O
  11. N
  12. D
0°32°100° J F M A M J J A S O N D 32 °F

Average lows are at or below freezing from Dec to Mar. 114 nights a year reach 32 °F or colder; Jan is coldest, with an average low of 21 °F.

NOAA 1991–2020 climate normals, Chillicothe Mound City station, 4.6 mi away, elevation 650 ft.

Monthly temperatures as a table
°FJanFebMarAprMayJunJulAugSepOctNovDec
Low2123.73141.151.560.664.161.753.743.333.526.3
High39.34353.465.773.9838584.778.767.354.843.7
91142 nightsRoss County 114

Ross County has fewer freezing nights than 52 of the 80 other Ohio places we track. The Ohio median is 116. Coldest: Geauga County; mildest: Euclid.

What frost line depth do towns near Ross County use?

2 official codes near Ross County are verified; each links to its document.

Official frost line depths near Ross County
PlaceVerified frost lineDistance
Columbus 32 in 46 mi away
Springfield 32 in 57 mi away

How likely is the soil in Ross County to heave?

USDA rates the sampled soil around Ross County as 7% none, 35% moderate, 58% high for frost action (main soils: Cruze, Gessie, Crosby).

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

Ross County at a glance

Frost line depth
No official local value
Population (2023 est.)
76,501
Mean annual temperature
53.5 °F
ZIP codes (16)
43101 · 43115 · 43135 · 43160 · 43164 · 45123 · 45601 · 45612 · 45617 · 45628 · 45644 · 45647 · 45672 · 45673 · 45681 · 45690

Sources

  • Climate: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00331528.
  • Soil: USDA NRCS Soil Survey (SSURGO) frost action ratings.
  • Code rules: International Residential Code R403.1.4, R507.3, P2603.5.

Checked Oct 2026. How we verify · Report a correction