What is the soil temperature in ZIP code 89439 today?

About 45°F on average in the top 4 inches (0–10 cm), low 40°F and high 52°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 2.7 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 89439?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Mar 18 and 55°F from May 9.

ZIP 89439 · Reno, NV · Nov 11, 2026

Soil temperature for ZIP code 89439

45°Faverage today, 0–4 in deep (modelled)
low 40°F · high 52°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 2.7 km from the ZIP centre point

On a week ago

4° warmer

42°F on Nov 4

5-day mean

45°F

what the verdicts use

Held 55°F last spring

May 9

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	41.5°F	38.2°F	47.7°F	analysis
Nov 5	42.5°F	38.8°F	48.1°F	analysis
Nov 6	40.4°F	36.1°F	46.2°F	analysis
Nov 7	41.5°F	37.9°F	49.7°F	analysis
Nov 8	45.6°F	42.0°F	51.5°F	analysis
Nov 9	46.1°F	43.1°F	50.7°F	analysis
Nov 10	45.3°F	40.9°F	52.1°F	analysis
Today	45.0°F	40.4°F	52.5°F	analysis
Nov 12	45.5°F	41.7°F	51.6°F	forecast
Nov 13	43.4°F	41.7°F	46.0°F	forecast
Nov 14	40.0°F	38.8°F	41.8°F	forecast
Nov 15	37.6°F	36.6°F	38.8°F	forecast
Nov 16	37.8°F	36.2°F	41.2°F	forecast
Nov 17	40.6°F	39.3°F	43.0°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 10
50°F	Pre-emergent window opens	Mar 18
55°F	Crabgrass can germinate	May 9
60°F	Tomatoes	Jun 4
65°F	Warm-season grass seed	Jun 14

Reno, NV, 15 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

89523 45°F · 96111 45°F · 89519 53°F · 89503 53°F · 89509 53°F · 89511 53°F · 89557 53°F · 89501 53°F

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

Questions

What is the soil temperature in ZIP code 89439 today?: About 45°F on average in the top 4 inches (0–10 cm), low 40°F and high 52°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 2.7 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 89439?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Mar 18 and 55°F from May 9.

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).