Alaska soil temperature
Estimated 2–4 inch soil temperature, statewide average . Based on NOAA weather stations near representative Alaska locations.
Data details
What this soil temperature means for your Alaska lawn
The current Alaska reading loads from today's R2 snapshot. Use the live value above or enter your ZIP code for a location-specific recommendation.
Alaska soil is still cold. Grass seed will not germinate reliably below 50°F, and most lawn chemicals are on hold. The main job now is planning: spring pre-emergent goes down as soil approaches 55°F — in Alaska, typically late may to early june (if needed).
Track your exact ZIP above, and see when to apply pre-emergent in Alaska for the full spring playbook.
Alaska soil is in the 50–65°F action band — the range where the big timing decisions happen. Crabgrass germinates as soil holds 55°F and above, so spring pre-emergent is either due or already late. It is also the germination range for cool-season grass seed and the recovery range for core aeration.
Check pre-emergent timing for Alaska, or the state pages for overseeding and aeration to act on this window.
Alaska soil is warm (65–80°F). Spring pre-emergent windows have passed, and it is too warm to start cool-season seed. This is peak season for warm-season growth — and for soil-driven pest timing: grub eggs hatch in warm midsummer soil.
Check grub control timing for Alaska, and plan ahead for fall: overseeding and aeration open up as soil cools back through 72°F.
Alaska soil is hot (above 80°F). Skip seeding and aeration — heat stress makes establishment and recovery unreliable. Warm-season lawns (Kentucky Bluegrass, Perennial Ryegrass, Fine Fescue) are in peak growth; cool-season lawns are in survival mode and need height and water, not projects.
Use the wait to plan fall work: overseeding and aeration in Alaska start once soil falls back toward 72°F.
Estimated soil temperature at Alaska locations
| ZIP code | Est. soil temp | Data through |
|---|---|---|
| 99501 | — | Loading… |
| 99701 | — | Loading… |
| 99801 | — | Loading… |
Values load from each ZIP's nearest NOAA station in the current R2 snapshot. Enter your own ZIP above for a reading closer to home.
How Alaska compares to the rest of the country
Estimated 2–4 inch soil temperature by state . Tap a state for its detailed page.
About Alaska lawns
Alaska is in USDA Hardiness Zones 1a-7a, with a cool-season lawn climate. Common grass types include Kentucky Bluegrass, Perennial Ryegrass, Fine Fescue.
These estimates are modeled from air temperature (about ±5°F at 2–4 inch depth — methodology). For local agronomic guidance, see the University of Alaska Fairbanks Cooperative Extension Service.
Common Alaska soil temperature questions
What is the current soil temperature in Alaska?
This page shows a statewide estimated 2–4 inch soil temperature for Alaska, recomputed daily from NOAA weather station records, plus per-ZIP estimates for representative Alaska locations. Enter your ZIP code for the reading nearest you.
At what soil temperature should I apply pre-emergent in Alaska?
Apply pre-emergent when Alaska soil temperatures approach 55°F at a 2–4 inch depth in spring — crabgrass germinates as soil holds 55°F and above. In Alaska that typically happens late may to early june (if needed).
What soil temperature does grass seed need in Alaska?
Cool-season grasses germinate best in 50–65°F soil, while warm-season grasses want 65–80°F. Common Alaska lawns (Kentucky Bluegrass, Perennial Ryegrass, Fine Fescue) should be seeded when soil enters the right range for their type — check the current estimate above.
How accurate is this Alaska soil temperature estimate?
It is modeled from air temperatures with a published lag model, not measured by in-ground sensors, and is typically within about ±5°F at 2–4 inch depth. Shade, moisture, and snow cover shift real readings; for precise numbers use a soil thermometer or University of Alaska Fairbanks Cooperative Extension Service resources.