What is the soil temperature in ZIP code 16239 today?

About 45°F on average in the top 4 inches (0–10 cm), low 42°F and high 48°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 9.4 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 16239?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 18 and 55°F from May 28.

ZIP 16239 · Clarion, PA · Nov 11, 2026

Soil temperature for ZIP code 16239

45°Faverage today, 0–4 in deep (modelled)
low 42°F · high 48°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 9.4 km from the ZIP centre point

On a week ago

12° cooler

57°F on Nov 4

5-day mean

45°F

what the verdicts use

Held 55°F last spring

May 28

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	57.0°F	53.5°F	60.4°F	analysis
Nov 5	59.5°F	59.1°F	60.2°F	analysis
Nov 6	51.8°F	49.2°F	55.0°F	analysis
Nov 7	43.5°F	42.8°F	44.7°F	analysis
Nov 8	44.7°F	43.2°F	46.7°F	analysis
Nov 9	45.5°F	45.2°F	45.8°F	analysis
Nov 10	44.7°F	41.3°F	48.3°F	analysis
Today	45.2°F	42.2°F	47.6°F	analysis
Nov 12	45.2°F	43.7°F	46.5°F	forecast
Nov 13	39.1°F	37.6°F	41.5°F	forecast
Nov 14	36.8°F	36.3°F	37.5°F	forecast
Nov 15	35.9°F	35.8°F	35.9°F	forecast
Nov 16	37.5°F	35.9°F	39.6°F	forecast
Nov 17	39.3°F	37.9°F	40.8°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 30
50°F	Pre-emergent window opens	May 18
55°F	Crabgrass can germinate	May 28
60°F	Tomatoes	Jun 7
65°F	Warm-season grass seed	not reached

Jamestown, NY, 67 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

15828 45°F · 16260 45°F · 16220 45°F · 16217 46°F · 15860 45°F · 16233 46°F · 16347 45°F · 16361 45°F

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

Questions

What is the soil temperature in ZIP code 16239 today?: About 45°F on average in the top 4 inches (0–10 cm), low 42°F and high 48°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 9.4 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 16239?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 18 and 55°F from May 28.

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).