What is the soil temperature in ZIP code 99163 today?

About 50°F on average in the top 4 inches (0–10 cm), low 48°F and high 54°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 3.2 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 99163?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 2 and 55°F from May 5.

ZIP 99163 · Pullman, WA · Nov 11, 2026

Soil temperature for ZIP code 99163

50°Faverage today, 0–4 in deep (modelled)
low 48°F · high 54°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 3.2 km from the ZIP centre point

On a week ago

6° warmer

44°F on Nov 4

5-day mean

48°F

what the verdicts use

Held 55°F last spring

May 5

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	44.2°F	40.9°F	48.9°F	analysis
Nov 5	43.3°F	41.3°F	47.0°F	analysis
Nov 6	42.3°F	40.0°F	45.4°F	analysis
Nov 7	46.0°F	43.3°F	51.3°F	analysis
Nov 8	49.5°F	48.5°F	51.1°F	analysis
Nov 9	47.7°F	44.9°F	52.3°F	analysis
Nov 10	49.0°F	48.0°F	50.5°F	analysis
Today	50.3°F	48.3°F	54.2°F	analysis
Nov 12	49.9°F	47.8°F	53.0°F	forecast
Nov 13	49.5°F	47.6°F	52.4°F	forecast
Nov 14	49.6°F	48.0°F	51.2°F	forecast
Nov 15	45.4°F	43.4°F	47.9°F	forecast
Nov 16	47.2°F	46.3°F	48.8°F	forecast
Nov 17	44.6°F	42.9°F	46.8°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	Mar 3
50°F	Pre-emergent window opens	May 2
55°F	Crabgrass can germinate	May 5
60°F	Tomatoes	Jun 17
65°F	Warm-season grass seed	not reached

Pullman, WA, 3 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

99102 50°F · 83844 48°F · 99113 50°F · 99161 50°F · 83843 48°F · 99111 52°F · 83872 48°F · 99179 50°F

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

Questions

What is the soil temperature in ZIP code 99163 today?: About 50°F on average in the top 4 inches (0–10 cm), low 48°F and high 54°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 3.2 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 99163?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 2 and 55°F from May 5.

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).