What is the soil temperature in ZIP code 06258 today?

About 48°F on average in the top 4 inches (0–10 cm), low 46°F and high 49°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 13.1 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 06258?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 14 and 55°F from Jun 5.

ZIP 06258 · Putnam, CT · Nov 11, 2026

Soil temperature for ZIP code 06258

48°Faverage today, 0–4 in deep (modelled)
low 46°F · high 49°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 13.1 km from the ZIP centre point

On a week ago

8° cooler

56°F on Nov 4

5-day mean

50°F

what the verdicts use

Held 55°F last spring

Jun 5

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	56.5°F	53.9°F	59.3°F	analysis
Nov 5	58.8°F	56.8°F	60.9°F	analysis
Nov 6	61.3°F	61.1°F	61.7°F	analysis
Nov 7	58.1°F	55.8°F	60.4°F	analysis
Nov 8	50.0°F	49.2°F	51.8°F	analysis
Nov 9	47.3°F	46.5°F	47.8°F	analysis
Nov 10	46.7°F	45.1°F	48.0°F	analysis
Today	48.1°F	46.5°F	49.2°F	analysis
Nov 12	46.6°F	45.6°F	47.6°F	forecast
Nov 13	43.1°F	41.0°F	45.4°F	forecast
Nov 14	39.7°F	39.3°F	40.4°F	forecast
Nov 15	38.5°F	38.2°F	39.0°F	forecast
Nov 16	38.6°F	37.7°F	39.8°F	forecast
Nov 17	38.8°F	38.2°F	39.8°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 31
50°F	Pre-emergent window opens	May 14
55°F	Crabgrass can germinate	Jun 5
60°F	Tomatoes	Jun 7
65°F	Warm-season grass seed	not reached

Southbridge, MA, 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.

06259 49°F · 06263 49°F · 06260 49°F · 06234 49°F · 06241 48°F · 06281 48°F · 06242 48°F · 06282 48°F

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

Questions

What is the soil temperature in ZIP code 06258 today?: About 48°F on average in the top 4 inches (0–10 cm), low 46°F and high 49°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 13.1 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 06258?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from May 14 and 55°F from Jun 5.

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).