4-Inch Soil Temperature in Utah
The current average 4-inch soil temperature across Utah is 81°F, measured at 34 USDA and NOAA monitoring stations. Readings range from 63°F to 99°F. Soil across Utah is running 3°F above the seasonal normal of 78°F for mid-August, based on 34 of 34 stations with historical records. Last updated August 9, 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 (34)
| Station | 4" Temp | Last Reading |
|---|---|---|
| Circleville (Piute) | 82°F | 2026-08-09 |
| Ephraim (Sanpete) | 79°F | 2026-08-09 |
| Holden (Millard) | 84°F | 2026-08-09 |
| Enterprise (Iron) | 94°F | 2026-08-02 |
| Milford (Beaver) | 76°F | 2026-08-02 |
| Eastland (San Juan) | 82°F | 2026-08-09 |
| Green River (Emery) | 91°F | 2026-08-09 |
| Price (Carbon) | 85°F | 2026-08-09 |
| Morgan (Morgan) | 75°F | 2026-08-09 |
| Mountain Home (Duchesne) | 76°F | 2026-08-09 |
| Blue Creek (Box Elder) | 77°F | 2026-08-02 |
| Cache Junction (Cache) | 81°F | 2026-08-09 |
| Nephi (Juab) | 78°F | 2026-08-09 |
| Alkali Mesa (San Juan) | 84°F | 2026-08-09 |
| West Summit (San Juan) | 78°F | 2026-08-09 |
| Mccracken Mesa (San Juan) | 95°F | 2026-08-02 |
| Chicken Ridge (Morgan) | 68°F | 2026-08-09 |
| Buffalo Jump (Rich) | 74°F | 2026-08-09 |
| Grantsville (Tooele) | 87°F | 2026-08-09 |
| Park Valley (Box Elder) | 82°F | 2026-08-09 |
| Split Mountain (Uintah) | 86°F | 2026-08-09 |
| Little Red Fox (Duchesne) | 78°F | 2026-08-09 |
| Panguitch (Garfield) | 71°F | 2026-08-09 |
| Spooky (Kane) | 88°F | 2026-08-09 |
| Sand Hollow (Washington) | 99°F | 2026-08-09 |
| Grouse Creek (Box Elder) | 73°F | 2026-08-09 |
| Cave Valley (Washington) | 63°F | 2026-08-02 |
| Vermillion (Kane) | 80°F | 2026-08-09 |
| Tule Valley (Millard) | 89°F | 2026-08-09 |
| Hals Canyon (Millard) | 82°F | 2026-08-09 |
| Goshute (Tooele) | 77°F | 2026-08-09 |
| Harms Way (San Juan) | 78°F | 2026-08-09 |
| Dugway (Tooele) | 84°F | 2026-08-09 |
| Brigham City 28 WNW | 79°F | 2026-08-09 |
Cities in Utah (16)
| City | ZIP | Current Temp |
|---|---|---|
| Bountiful | 84010 | 75°F |
| Cedar City | 84720 | 63°F |
| Clearfield | 84015 | 75°F |
| Layton | 84040 | 75°F |
| Logan | 84321 | 81°F |
| Ogden | 84201 | 75°F |
| Orem | 84057 | 87°F |
| Park City | 84060 | 75°F |
| Provo | 84601 | 78°F |
| Saint George | 84770 | 99°F |
| Salt Lake City | 84101 | 75°F |
| Sandy | 84070 | 87°F |
| South Jordan | 84009 | 87°F |
| Vernal | 84078 | 86°F |
| West Jordan | 84081 | 87°F |
| West Valley City | — | 87°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 81°F, measured at 34 USDA and NOAA stations. Readings range from 63°F to 99°F depending on location and elevation. Soil across Utah is running 3°F above the seasonal normal of 78°F for mid-August, based on 34 of 34 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), or the live national soil temperature map.