What is the soil temperature in ZIP code 16623 today?

About 49°F on average in the top 4 inches (0–10 cm), low 45°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 4.8 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 16623?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 7 and 55°F from May 27.

ZIP 16623 · Huntingdon, PA · Nov 11, 2026

Soil temperature for ZIP code 16623

49°Faverage today, 0–4 in deep (modelled)
low 45°F · high 52°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 4.8 km from the ZIP centre point

On a week ago

6° cooler

55°F on Nov 4

5-day mean

49°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	55.1°F	52.1°F	58.3°F	analysis
Nov 5	60.0°F	58.2°F	62.1°F	analysis
Nov 6	58.9°F	57.7°F	59.8°F	analysis
Nov 7	51.3°F	49.2°F	55.3°F	analysis
Nov 8	48.6°F	47.2°F	50.3°F	analysis
Nov 9	49.6°F	48.5°F	50.1°F	analysis
Nov 10	47.7°F	44.4°F	50.8°F	analysis
Today	48.9°F	45.4°F	52.0°F	analysis
Nov 12	50.0°F	48.7°F	50.5°F	forecast
Nov 13	45.6°F	44.2°F	48.0°F	forecast
Nov 14	40.1°F	38.4°F	41.7°F	forecast
Nov 15	39.6°F	37.7°F	41.4°F	forecast
Nov 16	40.7°F	38.2°F	42.4°F	forecast
Nov 17	39.6°F	36.6°F	41.8°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 7
50°F	Pre-emergent window opens	May 7
55°F	Crabgrass can germinate	May 27
60°F	Tomatoes	Jun 6
65°F	Warm-season grass seed	not reached

Altoona, PA, 40 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

16685 49°F · 17052 49°F · 16621 49°F · 16622 49°F · 17253 49°F · 16674 49°F · 17264 49°F · 16657 48°F

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

Questions

What is the soil temperature in ZIP code 16623 today?: About 49°F on average in the top 4 inches (0–10 cm), low 45°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 4.8 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 16623?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 7 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).