What is the soil temperature in ZIP code 06413 today?

About 52°F on average in the top 4 inches (0–10 cm), low 50°F and high 53°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 19.1 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 06413?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 5 and 55°F from May 18.

ZIP 06413 · Madison, CT · Nov 11, 2026

Soil temperature for ZIP code 06413

52°Faverage today, 0–4 in deep (modelled)
low 50°F · high 53°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 19.1 km from the ZIP centre point

On a week ago

7° cooler

58°F on Nov 4

5-day mean

54°F

what the verdicts use

Held 55°F last spring

May 18

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	58.4°F	56.1°F	60.8°F	analysis
Nov 5	60.9°F	58.9°F	63.1°F	analysis
Nov 6	62.5°F	62.2°F	62.9°F	analysis
Nov 7	59.8°F	58.1°F	61.3°F	analysis
Nov 8	53.9°F	52.4°F	54.6°F	analysis
Nov 9	52.1°F	51.0°F	52.8°F	analysis
Nov 10	50.0°F	47.4°F	52.7°F	analysis
Today	51.8°F	49.7°F	53.0°F	analysis
Nov 12	50.8°F	49.6°F	51.8°F	forecast
Nov 13	46.2°F	43.8°F	49.0°F	forecast
Nov 14	42.5°F	41.5°F	42.9°F	forecast
Nov 15	41.1°F	39.1°F	42.3°F	forecast
Nov 16	41.2°F	38.2°F	43.8°F	forecast
Nov 17	41.5°F	38.8°F	43.9°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 24
50°F	Pre-emergent window opens	May 5
55°F	Crabgrass can germinate	May 18
60°F	Tomatoes	Jun 6
65°F	Warm-season grass seed	Jun 9

Madison, CT, 6 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

06498 49°F · 06417 49°F · 06442 49°F · 06443 52°F · 06419 49°F · 06409 49°F · 06475 49°F · 06426 49°F

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

Questions

What is the soil temperature in ZIP code 06413 today?: About 52°F on average in the top 4 inches (0–10 cm), low 50°F and high 53°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 19.1 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 06413?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 5 and 55°F from May 18.

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).