ZIP 80436 · Evergreen, CO · Nov 11, 2026

Soil temperature for ZIP code 80436

34°Faverage today, 0–4 in deep (modelled)
low 33°F · high 37°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 10 km from the ZIP centre point

On a week ago
4° warmer
31°F on Nov 4
5-day mean
34°F
what the verdicts use
Held 55°F last spring
–
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 lettuceToo cold

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.

20°30°40°50°60°50–55°F windowNov 4Nov 6Nov 8TodayNov 14Nov 1631°34°35°
View as table
DayAverageLowHigh
Nov 430.9°F29.6°F33.0°Fanalysis
Nov 530.0°F29.1°F30.3°Fanalysis
Nov 630.2°F29.8°F30.6°Fanalysis
Nov 730.2°F29.4°F30.7°Fanalysis
Nov 830.4°F29.6°F31.3°Fanalysis
Nov 936.1°F35.0°F37.4°Fanalysis
Nov 1036.5°F35.8°F37.5°Fanalysis
Today34.4°F33.0°F36.6°Fanalysis
Nov 1233.9°F33.0°F35.9°Fforecast
Nov 1334.9°F34.1°F35.9°Fforecast
Nov 1434.2°F33.9°F34.5°Fforecast
Nov 1532.0°F30.6°F33.9°Fforecast
Nov 1632.1°F31.0°F35.1°Fforecast
Nov 1734.8°F34.1°F35.0°Fforecast
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.

SoilWhat it meansHeld from (spring 2026)
40°FPeas and lettuceMay 28
50°FPre-emergent window opensJun 18
55°FCrabgrass can germinatenot reached
60°FTomatoesnot reached
65°FWarm-season grass seednot reached

Boulder, CO, 41 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

80452 41°F · 80427 41°F · 80422 41°F · 80438 34°F · 80474 39°F · 80482 35°F · 80444 34°F · 80476 34°F

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

Questions

What is the soil temperature in ZIP code 80436 today?
About 34°F on average in the top 4 inches (0–10 cm), low 33°F and high 37°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 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 80436?
The spring window is closed. It opens again when the soil holds 50°F.

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).