What is the soil temperature in ZIP code 94549 today?

About 66°F on average in the top 4 inches (0–10 cm), low 61°F and high 72°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 15.2 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 94549?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Jan 14 and 55°F from Feb 4.

ZIP 94549 · Lafayette, CA · Nov 11, 2026

Soil temperature for ZIP code 94549

66°Faverage today, 0–4 in deep (modelled)
low 61°F · high 72°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 15.2 km from the ZIP centre point

On a week ago

5° warmer

60°F on Nov 4

5-day mean

64°F

what the verdicts use

Held 55°F last spring

Feb 4

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	60.2°F	55.9°F	68.1°F	analysis
Nov 5	63.2°F	58.6°F	71.1°F	analysis
Nov 6	63.4°F	59.3°F	69.8°F	analysis
Nov 7	63.5°F	59.3°F	70.6°F	analysis
Nov 8	63.8°F	59.3°F	70.7°F	analysis
Nov 9	64.0°F	60.0°F	70.3°F	analysis
Nov 10	65.6°F	61.1°F	73.2°F	analysis
Today	65.5°F	61.4°F	71.9°F	analysis
Nov 12	64.6°F	60.5°F	70.9°F	forecast
Nov 13	62.4°F	60.9°F	64.7°F	forecast
Nov 14	59.0°F	55.5°F	64.8°F	forecast
Nov 15	60.8°F	57.8°F	65.9°F	forecast
Nov 16	59.7°F	58.4°F	62.5°F	forecast
Nov 17	58.9°F	56.2°F	64.8°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	Jan 14
55°F	Crabgrass can germinate	Feb 4
60°F	Tomatoes	Mar 10
65°F	Warm-season grass seed	Mar 16

Concord, CA, 12 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

94597 66°F · 94595 63°F · 94575 63°F · 94523 66°F · 94596 66°F · 94556 63°F · 94563 63°F · 94516 63°F

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

Questions

What is the soil temperature in ZIP code 94549 today?: About 66°F on average in the top 4 inches (0–10 cm), low 61°F and high 72°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 15.2 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 94549?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Jan 14 and 55°F from Feb 4.

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).