4-Inch Soil Temperature in Ohio
The current average 4-inch soil temperature across Ohio is 65°F, measured at 2 USDA and NOAA monitoring stations. Readings range from 64°F to 66°F. Soil across Ohio is right at the seasonal normal of 64°F for early October, based on 2 of 2 stations with historical records. Last updated September 30, 2026.
Why the 4-Inch Reading
Every reading here is measured at native 4-inch depth by USDA SCAN (Soil Climate Analysis Network) and NOAA USCRN (US Climate Reference Network) stations, not modeled. The 4-inch root-zone temperature changes more slowly than the surface, making it the steadier signal for established-lawn and garden timing: pre-emergent and broadleaf herbicide windows, fertilizer applications, and core aeration.
Stations Measuring 4-Inch Depth in Ohio (2)
| Station | 4" Temp | Last Reading |
|---|---|---|
| Molly Caren #1 (Madison) | 66°F | 2026-09-30 |
| Wooster 3 SSE | 64°F | 2026-09-30 |
Cities in Ohio (53)
| City | ZIP | Current Temp |
|---|---|---|
| Akron | 44301 | 64°F |
| Ashtabula | 44004 | 64°F |
| Bowling Green | 43402 | — |
| Canton | 44701 | 64°F |
| Chagrin Falls | 44022 | 64°F |
| Cincinnati | 45201 | 66°F |
| Cleveland | 44101 | 64°F |
| Columbus | 43085 | 66°F |
| Cuyahoga Falls | 44221 | 64°F |
| Dayton | 45400 | 66°F |
| Dublin | 43016 | 66°F |
| Eastlake | 44095 | 64°F |
| Elyria | 44035 | 64°F |
| Euclid | 44117 | 64°F |
| Fairfield | 45014 | 66°F |
| Findlay | 45839 | 66°F |
| Groveport | 43125 | 66°F |
| Hamilton | 45011 | 66°F |
| Hebron | 43025 | 66°F |
| Hudson | 44236 | 64°F |
| Kent | 44240 | 64°F |
| Lima | 45801 | 66°F |
| Lockbourne | 43137 | 66°F |
| Lorain | 44052 | 64°F |
| Lucasville | 45648 | 66°F |
| Mansfield | 44901 | 64°F |
| Marion | 43301 | 66°F |
| Marysville | 43040 | 66°F |
| Massillon | 44646 | 64°F |
| Medina | 44256 | 64°F |
| Mentor | 44060 | 64°F |
| Miamisburg | 45342 | 66°F |
| Middletown | 45042 | 66°F |
| Newark | 43055 | 64°F |
| Novelty | 44072 | 64°F |
| Oregon | 43616 | — |
| Perrysburg | 43551 | — |
| Reynoldsburg | 43068 | 66°F |
| Sandusky | 44870 | 64°F |
| Sidney | 45365 | 66°F |
| Springfield | 45501 | 66°F |
| Steubenville | 43952 | 64°F |
| Strongsville | 44136 | 64°F |
| Toledo | 43601 | — |
| Troy | 45373 | 66°F |
| Wadsworth | 44281 | 64°F |
| Warren | 44481 | 64°F |
| West Chester | 45069 | 66°F |
| Westerville | 43081 | 66°F |
| Willard | 44888 | 64°F |
| Willoughby | 44094 | 64°F |
| Youngstown | 44501 | 64°F |
| Zanesville | 43701 | 64°F |
4-Inch Soil Temperature FAQ for Ohio
What is the current 4-inch soil temperature in Ohio?
The current average 4-inch soil temperature across Ohio is 65°F, measured at 2 USDA and NOAA stations. Readings range from 64°F to 66°F depending on location and elevation. Soil across Ohio is right at the seasonal normal of 64°F for early October, based on 2 of 2 stations with historical records.
What does the 4 inch soil temperature mean?
The 4 inch soil temperature shows conditions deeper in the root zone than the 2 inch germination reading. It is commonly used for established lawn, garden, and agricultural timing because it changes more slowly than the surface layer, so it is a steadier signal for fertilizer, aeration, and weed-control decisions.
Why use 4-inch soil temperature instead of 2-inch?
Use 2 inches for germination decisions, since that is where seeds sit. Use the 4 inch soil temperature for established lawn and garden timing: it reads the root zone, changes more slowly than the surface, and is the depth most fertilizer, aeration, and disease guidance references.
See the national 4-inch soil temperature map, the full Ohio soil temperature directory (all depths), the national soil temperature by depth comparison, or the live national soil temperature map.