ZIP 73442 · Duncan, OK · Nov 11, 2026
Soil temperature for ZIP code 73442
low 62°F · high 68°F
Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 9.9 km from the ZIP centre point
What the soil says today
- Pre-emergentSeason over
- Cool-season seedToo late in the season
- Warm-season seedToo cold
- TomatoesSoil warm enough
- 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 | 61.8°F | 58.8°F | 64.9°F | analysis |
| Nov 5 | 62.3°F | 59.1°F | 65.9°F | analysis |
| Nov 6 | 61.7°F | 60.4°F | 62.6°F | analysis |
| Nov 7 | 57.3°F | 54.6°F | 60.0°F | analysis |
| Nov 8 | 58.5°F | 55.7°F | 62.2°F | analysis |
| Nov 9 | 59.6°F | 56.2°F | 63.4°F | analysis |
| Nov 10 | 63.0°F | 60.2°F | 66.8°F | analysis |
| Today | 64.9°F | 62.0°F | 67.7°F | analysis |
| Nov 12 | 62.4°F | 59.1°F | 65.5°F | forecast |
| Nov 13 | 60.0°F | 57.7°F | 61.8°F | forecast |
| Nov 14 | 56.5°F | 54.2°F | 58.3°F | forecast |
| Nov 15 | 54.3°F | 50.6°F | 57.5°F | forecast |
| Nov 16 | 51.7°F | 49.2°F | 55.7°F | forecast |
| Nov 17 | 53.6°F | 51.4°F | 56.9°F | forecast |
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 4 |
| 50°F | Pre-emergent window opens | Feb 7 |
| 55°F | Crabgrass can germinate | Feb 9 |
| 60°F | Tomatoes | Feb 28 |
| 65°F | Warm-season grass seed | Mar 22 |
Nearby ZIP codes
Today's modelled average.
73491 64°F · 73438 65°F · 73435 65°F · 73481 64°F · 73425 64°F · 73488 64°F · 73529 65°F · 73456 65°F
More: crabgrass timing in Oklahoma · every Oklahoma city · how accurate the model is.
Questions
- What is the soil temperature in ZIP code 73442 today?
- About 65°F on average in the top 4 inches (0–10 cm), low 62°F and high 68°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 9.9 km from the ZIP centre, not a reading from your yard.
- Is it time for crabgrass preventer in 73442?
- The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Feb 7 and 55°F from Feb 9.
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).