What is the soil temperature in ZIP code 95640 today?

About 61°F on average in the top 4 inches (0–10 cm), low 58°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 11.4 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 95640?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Jan 31 and 55°F from Mar 12.

ZIP 95640 · Ione, CA · Nov 11, 2026

Soil temperature for ZIP code 95640

61°Faverage today, 0–4 in deep (modelled)
low 58°F · high 66°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 11.4 km from the ZIP centre point

On a week ago

6° warmer

56°F on Nov 4

5-day mean

60°F

what the verdicts use

Held 55°F last spring

Mar 12

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	55.7°F	53.4°F	60.0°F	analysis
Nov 5	56.8°F	54.2°F	61.2°F	analysis
Nov 6	56.5°F	53.7°F	60.8°F	analysis
Nov 7	58.2°F	54.8°F	64.6°F	analysis
Nov 8	60.2°F	57.5°F	64.6°F	analysis
Nov 9	60.1°F	57.3°F	64.5°F	analysis
Nov 10	60.6°F	58.0°F	65.2°F	analysis
Today	61.3°F	58.4°F	66.2°F	analysis
Nov 12	61.9°F	58.9°F	66.9°F	forecast
Nov 13	60.6°F	58.6°F	63.8°F	forecast
Nov 14	55.9°F	53.6°F	58.5°F	forecast
Nov 15	56.0°F	54.1°F	59.7°F	forecast
Nov 16	56.0°F	55.2°F	57.7°F	forecast
Nov 17	54.8°F	53.6°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 31
55°F	Crabgrass can germinate	Mar 12
60°F	Tomatoes	Mar 18
65°F	Warm-season grass seed	May 12

Galt, CA, 33 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

95638 61°F · 95699 60°F · 95226 60°F · 95601 60°F · 95642 60°F · 95254 61°F · 95225 60°F · 95669 61°F

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

Questions

What is the soil temperature in ZIP code 95640 today?: About 61°F on average in the top 4 inches (0–10 cm), low 58°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 11.4 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 95640?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Jan 31 and 55°F from Mar 12.

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).