What is the soil temperature in ZIP code 20045 today?

About 59°F on average in the top 4 inches (0–10 cm), low 53°F and high 63°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 11.8 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 20045?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Mar 23 and 55°F from Apr 13.

ZIP 20045 · Washington, DC · Nov 11, 2026

Soil temperature for ZIP code 20045

59°Faverage today, 0–4 in deep (modelled)
low 53°F · high 63°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 11.8 km from the ZIP centre point

On a week ago

4° cooler

63°F on Nov 4

5-day mean

57°F

what the verdicts use

Held 55°F last spring

Apr 13

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	63.0°F	56.8°F	68.2°F	analysis
Nov 5	65.3°F	63.8°F	66.9°F	analysis
Nov 6	64.8°F	64.2°F	65.8°F	analysis
Nov 7	57.6°F	55.0°F	60.8°F	analysis
Nov 8	54.4°F	49.2°F	58.3°F	analysis
Nov 9	56.3°F	52.8°F	60.2°F	analysis
Nov 10	55.9°F	50.1°F	61.1°F	analysis
Today	58.8°F	52.8°F	63.4°F	analysis
Nov 12	57.1°F	55.3°F	58.6°F	forecast
Nov 13	51.3°F	50.3°F	52.8°F	forecast
Nov 14	45.5°F	41.5°F	48.3°F	forecast
Nov 15	45.3°F	40.9°F	48.9°F	forecast
Nov 16	46.1°F	41.1°F	50.1°F	forecast
Nov 17	46.9°F	42.0°F	50.5°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	Feb 28
50°F	Pre-emergent window opens	Mar 23
55°F	Crabgrass can germinate	Apr 13
60°F	Tomatoes	May 27
65°F	Warm-season grass seed	Jun 4

Washington, DC, 1 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

20220 59°F · 20004 59°F · 20230 59°F · 20535 59°F · 20530 59°F · 20560 59°F · 20408 59°F · 20005 59°F

More: crabgrass timing in District of Columbia · how accurate the model is.

Questions

What is the soil temperature in ZIP code 20045 today?: About 59°F on average in the top 4 inches (0–10 cm), low 53°F and high 63°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 11.8 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 20045?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Mar 23 and 55°F from Apr 13.

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).