What is the soil temperature in ZIP code 95046 today?

About 63°F on average in the top 4 inches (0–10 cm), low 60°F and high 69°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 14.1 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 95046?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Jan 15 and 55°F from Mar 11.

ZIP 95046 · San Martin, CA · Nov 11, 2026

Soil temperature for ZIP code 95046

63°Faverage today, 0–4 in deep (modelled)
low 60°F · high 69°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 14.1 km from the ZIP centre point

On a week ago

6° warmer

57°F on Nov 4

5-day mean

62°F

what the verdicts use

Held 55°F last spring

Mar 11

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	57.2°F	53.9°F	63.4°F	analysis
Nov 5	59.4°F	55.7°F	65.7°F	analysis
Nov 6	59.6°F	55.7°F	65.6°F	analysis
Nov 7	60.7°F	57.1°F	66.7°F	analysis
Nov 8	61.0°F	57.1°F	67.5°F	analysis
Nov 9	62.3°F	58.6°F	68.6°F	analysis
Nov 10	63.1°F	59.5°F	68.7°F	analysis
Today	63.4°F	60.2°F	68.6°F	analysis
Nov 12	62.2°F	59.1°F	66.4°F	forecast
Nov 13	59.1°F	57.2°F	62.2°F	forecast
Nov 14	55.7°F	53.0°F	59.9°F	forecast
Nov 15	55.5°F	53.0°F	59.4°F	forecast
Nov 16	55.0°F	54.1°F	56.4°F	forecast
Nov 17	54.4°F	53.0°F	57.2°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	never below
50°F	Pre-emergent window opens	Jan 15
55°F	Crabgrass can germinate	Mar 11
60°F	Tomatoes	Mar 17
65°F	Warm-season grass seed	Jun 12

Morgan Hill, CA, 6 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

95037 61°F · 95020 63°F · 95135 62°F · 95013 61°F · 95139 61°F · 95138 61°F · 95119 61°F · 95076 63°F

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

Questions

What is the soil temperature in ZIP code 95046 today?: About 63°F on average in the top 4 inches (0–10 cm), low 60°F and high 69°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 14.1 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 95046?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Jan 15 and 55°F from Mar 11.

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).