ZIP 93446 · Paso Robles, CA · Nov 11, 2026

Soil temperature for ZIP code 93446

63°Faverage today, 0–4 in deep (modelled)
low 58°F · high 71°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 10.5 km from the ZIP centre point

On a week ago
3° warmer
60°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.

40°50°60°70°80°50–55°F windowNov 4Nov 6Nov 8TodayNov 14Nov 1660°63°57°
View as table
DayAverageLowHigh
Nov 459.6°F55.0°F67.3°Fanalysis
Nov 560.7°F56.2°F67.9°Fanalysis
Nov 659.5°F54.6°F66.6°Fanalysis
Nov 760.5°F54.8°F69.8°Fanalysis
Nov 862.9°F58.0°F71.1°Fanalysis
Nov 963.0°F58.0°F70.9°Fanalysis
Nov 1063.0°F58.2°F70.7°Fanalysis
Today62.9°F57.7°F71.1°Fanalysis
Nov 1262.7°F58.6°F68.2°Fforecast
Nov 1360.6°F57.3°F63.4°Fforecast
Nov 1460.1°F57.2°F64.9°Fforecast
Nov 1558.0°F54.1°F63.7°Fforecast
Nov 1657.3°F56.1°F59.1°Fforecast
Nov 1757.3°F55.2°F61.3°Fforecast
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.

SoilWhat it meansHeld from (spring 2026)
40°FPeas and lettucenever below
50°FPre-emergent window opensJan 15
55°FCrabgrass can germinateMar 11
60°FTomatoesMar 16
65°FWarm-season grass seedMar 20

Paso Robles, CA, 4 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

This ZIP code area covers about 428 square miles; the reading is for the model grid cell nearest its Census centre point, which can be far from where you are. Try a neighbouring ZIP if it looks off.

Nearby ZIP codes

Today's modelled average.

93465 63°F · 93422 63°F · 93430 65°F · 93432 63°F · 93442 63°F · 93428 65°F · 93426 63°F · 93451 61°F

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

Questions

What is the soil temperature in ZIP code 93446 today?
About 63°F on average in the top 4 inches (0–10 cm), low 58°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 10.5 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 93446?
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).