4-Inch Soil Temperature in Utah
The current average 4-inch soil temperature across Utah is 65°F, measured at 30 USDA and NOAA monitoring stations. Readings range from 55°F to 82°F. Soil across Utah is running 2°F above the seasonal normal of 63°F for late September, based on 30 of 30 stations with historical records. Last updated September 23, 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 Utah (30)
| Station | 4" Temp | Last Reading |
|---|---|---|
| Circleville (Piute) | 61°F | 2026-09-23 |
| Ephraim (Sanpete) | 61°F | 2026-09-23 |
| Holden (Millard) | 68°F | 2026-09-23 |
| Eastland (San Juan) | 62°F | 2026-09-23 |
| Green River (Emery) | 73°F | 2026-09-23 |
| Price (Carbon) | 66°F | 2026-09-23 |
| Morgan (Morgan) | 60°F | 2026-09-23 |
| Mountain Home (Duchesne) | 59°F | 2026-09-23 |
| Blue Creek (Box Elder) | 64°F | 2026-09-23 |
| Cache Junction (Cache) | 65°F | 2026-09-23 |
| Alkali Mesa (San Juan) | 61°F | 2026-09-23 |
| West Summit (San Juan) | 63°F | 2026-09-23 |
| Mccracken Mesa (San Juan) | 73°F | 2026-09-23 |
| Chicken Ridge (Morgan) | 55°F | 2026-09-23 |
| Buffalo Jump (Rich) | 57°F | 2026-09-23 |
| Grantsville (Tooele) | 68°F | 2026-09-23 |
| Park Valley (Box Elder) | 61°F | 2026-09-23 |
| Split Mountain (Uintah) | 80°F | 2026-09-23 |
| Little Red Fox (Duchesne) | 60°F | 2026-09-23 |
| Panguitch (Garfield) | 58°F | 2026-09-23 |
| Spooky (Kane) | 76°F | 2026-09-23 |
| Sand Hollow (Washington) | 82°F | 2026-09-23 |
| Grouse Creek (Box Elder) | 61°F | 2026-09-23 |
| Vermillion (Kane) | 64°F | 2026-09-23 |
| Tule Valley (Millard) | 70°F | 2026-09-23 |
| Hals Canyon (Millard) | 68°F | 2026-09-23 |
| Goshute (Tooele) | 69°F | 2026-09-23 |
| Harms Way (San Juan) | 61°F | 2026-09-23 |
| Dugway (Tooele) | 65°F | 2026-09-23 |
| Brigham City 28 WNW | 63°F | 2026-09-23 |
Cities in Utah (16)
| City | ZIP | Current Temp |
|---|---|---|
| Bountiful | 84010 | 60°F |
| Cedar City | 84720 | 58°F |
| Clearfield | 84015 | 60°F |
| Layton | 84040 | 60°F |
| Logan | 84321 | 65°F |
| Ogden | 84201 | 60°F |
| Orem | 84057 | 68°F |
| Park City | 84060 | 60°F |
| Provo | 84601 | 68°F |
| Saint George | 84770 | 82°F |
| Salt Lake City | 84101 | 60°F |
| Sandy | 84070 | 68°F |
| South Jordan | 84009 | 68°F |
| Vernal | 84078 | 80°F |
| West Jordan | 84081 | 68°F |
| West Valley City | — | 68°F |
4-Inch Soil Temperature FAQ for Utah
What is the current 4-inch soil temperature in Utah?
The current average 4-inch soil temperature across Utah is 65°F, measured at 30 USDA and NOAA stations. Readings range from 55°F to 82°F depending on location and elevation. Soil across Utah is running 2°F above the seasonal normal of 63°F for late September, based on 30 of 30 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 Utah soil temperature directory (all depths), the national soil temperature by depth comparison, or the live national soil temperature map.