What is the soil temperature in ZIP code 29418 today?

About 67°F on average in the top 4 inches (0–10 cm), low 62°F and high 71°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 13.5 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 29418?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Feb 12 and 55°F from Mar 1.

ZIP 29418 · Hanahan, SC · Nov 11, 2026

Soil temperature for ZIP code 29418

67°Faverage today, 0–4 in deep (modelled)
low 62°F · high 71°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 13.5 km from the ZIP centre point

On a week ago

4° cooler

71°F on Nov 4

5-day mean

67°F

what the verdicts use

Held 55°F last spring

Mar 1

crabgrass germination temperature

What the soil says today

Pre-emergentSeason over
Cool-season seedToo late in the season
Warm-season seedWarm enough
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	71.4°F	67.2°F	75.1°F	analysis
Nov 5	74.2°F	69.8°F	77.9°F	analysis
Nov 6	74.3°F	71.4°F	77.1°F	analysis
Nov 7	70.3°F	67.4°F	72.1°F	analysis
Nov 8	66.2°F	61.6°F	68.6°F	analysis
Nov 9	65.5°F	60.5°F	69.5°F	analysis
Nov 10	66.2°F	60.8°F	70.2°F	analysis
Today	67.1°F	62.3°F	71.2°F	analysis
Nov 12	67.4°F	63.1°F	70.9°F	forecast
Nov 13	61.5°F	58.2°F	64.2°F	forecast
Nov 14	55.4°F	52.3°F	56.6°F	forecast
Nov 15	52.2°F	47.9°F	54.9°F	forecast
Nov 16	53.5°F	49.4°F	56.6°F	forecast
Nov 17	54.6°F	53.0°F	55.9°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	never below
50°F	Pre-emergent window opens	Feb 12
55°F	Crabgrass can germinate	Mar 1
60°F	Tomatoes	Mar 4
65°F	Warm-season grass seed	Mar 30

Summerville, SC, 14 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

29420 67°F · 29404 67°F · 29406 67°F · 29414 66°F · 29410 67°F · 29456 67°F · 29485 64°F · 29405 66°F

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

Questions

What is the soil temperature in ZIP code 29418 today?: About 67°F on average in the top 4 inches (0–10 cm), low 62°F and high 71°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 13.5 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 29418?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Feb 12 and 55°F from Mar 1.

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).