A broad favorable soil-temperature range for cool-season grass seed germination and establishment.
Soil Temperature Lookup
See your current soil temperature, 5-day average, and local trend.
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5-Day Average
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Current Soil Temperature
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Trend
Use the 5-day average for lawn-care timing. It smooths out short-term temperature swings and is the value used for the recommendations on this page.
What This Means Right Now
Based on your 5-day soil temperature average
Modeled local soil-temperature data via Open-Meteo. Values are estimates for your ZIP-code area and may differ from a physical soil thermometer at your property.
Soil Temperature — Last 30 Days
See whether your local soil is warming, cooling, or holding steady.
Enter your ZIP code above to load the 30-day trend.
Quick Reference
Common Soil Temperature Targets
Use these common soil-temperature benchmarks as a starting point for lawn-care timing.
Bermuda can be seeded once soils reach about 65°F, with strongest germination around 70–80°F.
Apply before soil temperatures reach about 55°F consistently. Do not wait until soil is at 55°F. Earlier is best.
Apply before soil temperatures fall to about 70°F consistently. Applying early is best.
Lawn Recommendations
Choose your grass type to personalize lawn-care timing.
Your lawn:
What Your Soil Temperature Means
Personalized timing based on your lawn type and local soil conditions.
Enter your ZIP code above to see local recommendations.
When Should I Apply Pre-Emergent?
Apply pre-emergent before target weeds begin germinating. In spring, do not wait for soil to reach the main crabgrass germination threshold. Getting the barrier down early gives it time to be watered in and ready.
What Soil Temperature Is Best for Grass Seed?
Grass seed timing depends on the species. Cool-season grasses establish best as soils cool in fall, while Bermuda seed needs consistently warm soil in late spring and summer.
Why Soil Temperature Matters
Soil temperature changes more slowly than air temperature, making it a useful signal for weed germination, seed establishment, and seasonal lawn timing.
Spring vs. Fall Pre-Emergent
Spring applications target summer annual weeds such as crabgrass. Fall applications target winter annual weeds such as annual bluegrass. Your local soil trend helps show when each window is approaching.
Soil Temperature
Frequently Asked Questions
Apply before the main weed-germination window. For spring crabgrass prevention, earlier is better than waiting until soils reach the typical mid-50s threshold.
It depends on the grass. Cool-season lawns are typically seeded as soils cool in fall. Bermuda seed needs warmer soil in late spring and summer.
Yes. Soil warms and cools more slowly than the air, which is why soil temperature can be a better seasonal timing signal for lawn care.
The lookup uses modeled local soil data for your ZIP code and calculates a 5-day average to smooth out short-term temperature swings.
Many traditional pre-emergents can prevent grass seed from germinating. If you are installing seed, follow the product label and avoid incompatible pre-emergent applications.