What is the soil temperature in ZIP code 15922 today?

About 47°F on average in the top 4 inches (0–10 cm), low 43°F and high 50°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 15922?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 17 and 55°F from May 27.

ZIP 15922 · Johnstown, PA · Nov 11, 2026

Soil temperature for ZIP code 15922

47°Faverage today, 0–4 in deep (modelled)
low 43°F · high 50°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

11° cooler

58°F on Nov 4

5-day mean

45°F

what the verdicts use

Held 55°F last spring

May 27

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	57.5°F	54.4°F	60.5°F	analysis
Nov 5	59.7°F	59.1°F	60.2°F	analysis
Nov 6	54.7°F	53.2°F	56.8°F	analysis
Nov 7	45.7°F	44.1°F	48.9°F	analysis
Nov 8	44.7°F	43.1°F	46.8°F	analysis
Nov 9	45.7°F	44.9°F	46.2°F	analysis
Nov 10	44.6°F	41.3°F	48.1°F	analysis
Today	46.7°F	43.2°F	49.9°F	analysis
Nov 12	48.5°F	47.1°F	49.8°F	forecast
Nov 13	42.1°F	40.0°F	44.9°F	forecast
Nov 14	37.7°F	37.0°F	38.6°F	forecast
Nov 15	36.8°F	36.2°F	37.9°F	forecast
Nov 16	39.5°F	38.0°F	41.5°F	forecast
Nov 17	40.0°F	38.2°F	41.6°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 6
50°F	Pre-emergent window opens	May 17
55°F	Crabgrass can germinate	May 27
60°F	Tomatoes	Jun 7
65°F	Warm-season grass seed	not reached

Johnstown, PA, 22 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

15960 46°F · 15957 47°F · 15943 46°F · 15931 46°F · 15961 47°F · 15927 46°F · 15762 46°F · 15948 46°F

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

Questions

What is the soil temperature in ZIP code 15922 today?: About 47°F on average in the top 4 inches (0–10 cm), low 43°F and high 50°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 15922?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 17 and 55°F from May 27.

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).