What is the soil temperature in ZIP code 96028 today?

About 49°F on average in the top 4 inches (0–10 cm), low 46°F and high 53°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 3.7 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 96028?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Mar 16 and 55°F from May 3.

ZIP 96028 · California · Nov 11, 2026

Soil temperature for ZIP code 96028

49°Faverage today, 0–4 in deep (modelled)
low 46°F · high 53°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 3.7 km from the ZIP centre point

On a week ago

4° warmer

45°F on Nov 4

5-day mean

48°F

what the verdicts use

Held 55°F last spring

May 3

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 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	45.2°F	42.9°F	48.8°F	analysis
Nov 5	45.1°F	42.4°F	48.6°F	analysis
Nov 6	45.3°F	42.4°F	50.4°F	analysis
Nov 7	48.0°F	45.2°F	52.9°F	analysis
Nov 8	48.1°F	45.2°F	51.6°F	analysis
Nov 9	48.2°F	45.6°F	51.8°F	analysis
Nov 10	48.8°F	46.2°F	53.2°F	analysis
Today	48.9°F	45.6°F	53.0°F	analysis
Nov 12	48.0°F	44.9°F	51.8°F	forecast
Nov 13	47.2°F	46.2°F	49.4°F	forecast
Nov 14	43.6°F	42.3°F	44.7°F	forecast
Nov 15	42.0°F	40.7°F	43.5°F	forecast
Nov 16	42.5°F	42.3°F	42.7°F	forecast
Nov 17	41.9°F	41.6°F	42.2°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	Jan 31
50°F	Pre-emergent window opens	Mar 16
55°F	Crabgrass can germinate	May 3
60°F	Tomatoes	Jun 12
65°F	Warm-season grass seed	Jun 14

Nearby ZIP codes

Today's modelled average.

96016 49°F · 96056 49°F · 96013 50°F · 96068 49°F · 96040 51°F · 96071 51°F · 96011 54°F · 96009 48°F

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

Questions

What is the soil temperature in ZIP code 96028 today?: About 49°F on average in the top 4 inches (0–10 cm), low 46°F and high 53°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 3.7 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 96028?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Mar 16 and 55°F from May 3.

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).