4-Inch Soil Temperature in Georgia
The current average 4-inch soil temperature across Georgia is 79°F, measured at 5 USDA and NOAA monitoring stations. Readings range from 73°F to 84°F. Soil across Georgia is right at the seasonal normal of 79°F for late September, based on 5 of 5 stations with historical records. Last updated September 24, 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 Georgia (5)
| Station | 4" Temp | Last Reading |
|---|---|---|
| Watkinsville #1 (Oconee) | 73°F | 2026-09-24 |
| Newton 8 W | 80°F | 2026-09-24 |
| Newton 11 SW | 84°F | 2026-09-24 |
| Watkinsville 5 SSE | 77°F | 2026-09-24 |
| Brunswick 23 S | 82°F | 2026-09-24 |
Cities in Georgia (78)
| City | ZIP | Current Temp |
|---|---|---|
| Acworth | 30101 | 73°F |
| Albany | 31701 | 80°F |
| Alpharetta | 30004 | 73°F |
| Alto | 30510 | 73°F |
| Americus | 31709 | 80°F |
| Athens | 30601 | 73°F |
| Atl | 30347 | 73°F |
| Atlanta | 30301 | 73°F |
| Augusta | 30901 | 77°F |
| Austell | 30106 | 73°F |
| Bainbridge | 39817 | 84°F |
| Baxley | 31513 | 82°F |
| Blairsville | 30512 | 73°F |
| Brunswick | 31520 | 82°F |
| Buford | 30515 | 73°F |
| Cairo | 39827 | 84°F |
| Calhoun | 30701 | 73°F |
| Canton | 30114 | 73°F |
| Carrollton | 30112 | 73°F |
| Cartersville | 30120 | 73°F |
| Columbus | 31901 | 80°F |
| Commerce | 30529 | 73°F |
| Conyers | 30012 | 73°F |
| Cordele | 31010 | 80°F |
| Covington | 30014 | 77°F |
| Cumming | 30028 | 73°F |
| Dahlonega | 30533 | 73°F |
| Dallas | 30132 | 73°F |
| Dalton | 30719 | — |
| Decatur | 30030 | 73°F |
| Douglas | 31533 | 82°F |
| Douglasville | 30133 | 73°F |
| Dublin | 31021 | 77°F |
| Duluth | 30095 | 73°F |
| Eatonton | 31024 | 77°F |
| Ellijay | 30536 | 73°F |
| Fayetteville | 30214 | 77°F |
| Forest Park | 30297 | 73°F |
| Fort Benning | 31905 | 80°F |
| Fort Stewart | 31314 | 82°F |
| Gainesville | 30501 | 73°F |
| Griffin | 30223 | 77°F |
| Hinesville | 31310 | 82°F |
| Jesup | 31545 | 82°F |
| Jonesboro | 30236 | 77°F |
| Kennesaw | 30144 | 73°F |
| Lagrange | 30240 | — |
| Lawrenceville | 30042 | 73°F |
| Lilburn | 30047 | 73°F |
| Lithonia | 30038 | 73°F |
| Macon | 31201 | 77°F |
| Marietta | 30006 | 73°F |
| Mcdonough | 30252 | 77°F |
| Milledgeville | 31059 | 77°F |
| Monroe | 30655 | 73°F |
| Morrow | 30260 | 73°F |
| Moultrie | 31768 | 84°F |
| Newnan | 30263 | 77°F |
| Norcross | 30003 | 73°F |
| North Metro | 30026 | 73°F |
| Peachtree City | 30269 | 77°F |
| Reidsville | 30453 | 82°F |
| Riverdale | 30274 | 73°F |
| Rome | 30161 | — |
| Roswell | 30075 | 73°F |
| Savannah | 31401 | 82°F |
| Smyrna | 30080 | 73°F |
| Snellville | 30039 | 73°F |
| Statesboro | 30458 | — |
| Stone Mountain | 30083 | 73°F |
| Thomasville | 31757 | 84°F |
| Tifton | 31793 | 80°F |
| Tucker | 30084 | 73°F |
| Valdosta | 31601 | 84°F |
| Vidalia | 30474 | — |
| Warner Robins | 31088 | 77°F |
| Waycross | 31501 | 82°F |
| Woodstock | 30188 | 73°F |
4-Inch Soil Temperature FAQ for Georgia
What is the current 4-inch soil temperature in Georgia?
The current average 4-inch soil temperature across Georgia is 79°F, measured at 5 USDA and NOAA stations. Readings range from 73°F to 84°F depending on location and elevation. Soil across Georgia is right at the seasonal normal of 79°F for late September, based on 5 of 5 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 Georgia soil temperature directory (all depths), the national soil temperature by depth comparison, or the live national soil temperature map.