What is the soil temperature in ZIP code 30039 today?

About 63°F on average in the top 4 inches (0–10 cm), low 59°F and high 66°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 6.3 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 30039?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Mar 1 and 55°F from Mar 2.

ZIP 30039 · Snellville, GA · Nov 11, 2026

Soil temperature for ZIP code 30039

63°Faverage today, 0–4 in deep (modelled)
low 59°F · high 66°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 6.3 km from the ZIP centre point

On a week ago

4° cooler

66°F on Nov 4

5-day mean

62°F

what the verdicts use

Held 55°F last spring

Mar 2

crabgrass germination temperature

What the soil says today

Pre-emergentSeason over
Cool-season seedToo late in the season
Warm-season seedToo cold
TomatoesSoil warm enough
Peas and lettuceWarm enough

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.

View as table

Day	Average	Low	High
Nov 4	66.3°F	65.9°F	66.7°F	analysis
Nov 5	68.2°F	66.3°F	71.1°F	analysis
Nov 6	68.2°F	65.6°F	69.8°F	analysis
Nov 7	64.2°F	60.2°F	66.1°F	analysis
Nov 8	61.6°F	56.8°F	65.2°F	analysis
Nov 9	61.1°F	56.4°F	65.1°F	analysis
Nov 10	61.4°F	56.8°F	65.3°F	analysis
Today	62.6°F	59.1°F	65.6°F	analysis
Nov 12	63.1°F	61.6°F	64.4°F	forecast
Nov 13	55.7°F	53.9°F	58.2°F	forecast
Nov 14	50.5°F	47.1°F	52.9°F	forecast
Nov 15	48.8°F	44.5°F	52.2°F	forecast
Nov 16	50.1°F	47.1°F	52.3°F	forecast
Nov 17	49.9°F	46.0°F	53.4°F	forecast

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.

Soil	What it means	Held from (spring 2026)
40°F	Peas and lettuce	Feb 7
50°F	Pre-emergent window opens	Mar 1
55°F	Crabgrass can germinate	Mar 2
60°F	Tomatoes	Mar 24
65°F	Warm-season grass seed	May 9

Lawrenceville, GA, 18 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

30087 63°F · 30078 63°F · 30012 63°F · 30058 63°F · 30047 63°F · 30017 63°F · 30052 63°F · 30044 63°F

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

Questions

What is the soil temperature in ZIP code 30039 today?: About 63°F on average in the top 4 inches (0–10 cm), low 59°F and high 66°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 6.3 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 30039?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Mar 1 and 55°F from Mar 2.

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).