ZIP 86438 · Lake Havasu City, AZ · Nov 11, 2026
Soil temperature for ZIP code 86438
low 60°F · high 74°F
Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 7.5 km from the ZIP centre point
What the soil says today
- Pre-emergentSeason over
- Cool-season seedToo late in the season
- Warm-season seedWarm enough
- 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 | 63.5°F | 58.0°F | 70.7°F | analysis |
| Nov 5 | 63.2°F | 57.3°F | 71.2°F | analysis |
| Nov 6 | 63.7°F | 57.7°F | 72.1°F | analysis |
| Nov 7 | 65.1°F | 59.3°F | 73.9°F | analysis |
| Nov 8 | 66.4°F | 60.5°F | 74.3°F | analysis |
| Nov 9 | 66.7°F | 60.2°F | 75.2°F | analysis |
| Nov 10 | 66.4°F | 60.2°F | 74.7°F | analysis |
| Today | 65.9°F | 59.8°F | 73.8°F | analysis |
| Nov 12 | 66.1°F | 59.8°F | 74.6°F | forecast |
| Nov 13 | 66.1°F | 62.0°F | 70.8°F | forecast |
| Nov 14 | 63.7°F | 59.8°F | 68.7°F | forecast |
| Nov 15 | 63.4°F | 58.0°F | 70.9°F | forecast |
| Nov 16 | 64.0°F | 58.8°F | 71.1°F | forecast |
| Nov 17 | 65.4°F | 62.7°F | 68.2°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 | never below |
| 50°F | Pre-emergent window opens | Jan 14 |
| 55°F | Crabgrass can germinate | Feb 1 |
| 60°F | Tomatoes | Feb 5 |
| 65°F | Warm-season grass seed | Mar 11 |
This ZIP code area covers about 961 square miles; the reading is for the model grid cell nearest its Census centre point, which can be far from where you are. Try a neighbouring ZIP if it looks off.
Nearby ZIP codes
Today's modelled average.
86404 70°F · 86406 69°F · 86436 71°F · 86403 70°F · 85360 68°F · 86433 66°F · 92267 73°F · 86401 60°F
More: crabgrass timing in Arizona · every Arizona city · how accurate the model is.
Questions
- What is the soil temperature in ZIP code 86438 today?
- About 66°F on average in the top 4 inches (0–10 cm), low 60°F and high 74°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 7.5 km from the ZIP centre, not a reading from your yard.
- Is it time for crabgrass preventer in 86438?
- The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Jan 14 and 55°F from Feb 1.
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).