ZIP 99734 · Alaska · Nov 11, 2026

Soil temperature for ZIP code 99734

21°Faverage today, 0–4 in deep (modelled)
low 21°F · high 21°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 8.8 km from the ZIP centre point

On a week ago
4° cooler
25°F on Nov 4
5-day mean
22°F
what the verdicts use
Held 55°F last spring
–
crabgrass germination temperature

What the soil says today

  • Pre-emergentSeason over
  • Cool-season seedToo late in the season
  • Warm-season seedToo cold
  • TomatoesToo cold
  • Peas and lettuceToo cold

From the 5-day mean of the modelled 0–4 in layer.

Soil temperature, 0–4 in: last 7 days and next 7

°F, modelled. Dots and line: daily average (dashed = forecast); bars: low to high; green band: 50–55°F.

10°20°30°40°50°60°50–55°F windowNov 4Nov 6Nov 8TodayNov 14Nov 1625°21°23°
View as table
DayAverageLowHigh
Nov 424.7°F24.6°F24.8°Fanalysis
Nov 524.0°F23.7°F24.4°Fanalysis
Nov 624.8°F24.5°F24.9°Fanalysis
Nov 723.6°F22.9°F24.2°Fanalysis
Nov 822.1°F21.6°F22.6°Fanalysis
Nov 920.9°F20.7°F21.1°Fanalysis
Nov 1020.9°F20.8°F21.2°Fanalysis
Today21.2°F21.1°F21.3°Fanalysis
Nov 1220.9°F20.8°F21.0°Fforecast
Nov 1320.9°F20.8°F21.0°Fforecast
Nov 1421.1°F21.0°F21.1°Fforecast
Nov 1521.4°F21.1°F21.6°Fforecast
Nov 1622.0°F21.8°F22.3°Fforecast
Nov 1722.6°F22.4°F22.8°Fforecast
Source: NOAA NCEP GFS 0.25°, 0–10 cm soil temperature, run Nov 11, 12:00 UTC (7 am Eastern).

Spring 2026 threshold dates

From the 5-day mean held for 10 days or more.

SoilWhat it meansHeld from (spring 2026)
40°FPeas and lettuceJun 20
50°FPre-emergent window opensnot reached
55°FCrabgrass can germinatenot reached
60°FTomatoesnot reached
65°FWarm-season grass seednot reached

Nearby ZIP codes

Today's modelled average.

99519 21°F

More: crabgrass timing in Alaska · every Alaska city · how accurate the model is.

Questions

What is the soil temperature in ZIP code 99734 today?
About 21°F on average in the top 4 inches (0–10 cm), low 21°F and high 21°F, from NOAA's GFS model run of Nov 11, 12:00 UTC (7 am Eastern). It is a model value for a grid cell 8.8 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 99734?
The spring window is closed. It opens again when the soil holds 50°F.

Data: Global Forecast System (GFS) 0.25°, soil temperature 0–10 cm (TSOIL) (NOAA National Centers for Environmental Prediction (NCEP)); 2025 Gazetteer ZIP Code Tabulation Areas (ZCTA) and 2024 cartographic boundary state outlines (U.S. Census Bureau).