Soilclock

Huntsville 65°F soil temperature

4 inches down: 66°F · 7-day change +6° · Measured at a sensor 9 miles away: 66°F

Updated Nov 4, 2026, 7:39 AM EST · Alabama

Huntsville, Alabama. Estimated 2-inch daily average for Nov 3, 7° above normal, falling to 54° by Nov 10.

What to do in Huntsville now

Huntsville is in the transition zone, where both cool- and warm-season lawns grow. Dates are typical for this spot, worked out from 23 years of weather at Huntsville Intnl Ap; each status uses this year's soil estimates.

Warm-season: bermudagrass, zoysia, St. Augustine, centipede, bahia

  • Crabgrass pre-emergent Closed Mar 5 Typical: Feb 15 – Mar 132-inch soil held 55°F for a week from Mar 5, so crabgrass was sprouting. Next window: about Feb 15 – Mar 13, 2027.
  • Seed or sod Wait for late spring Typical: Apr 19 – Oct 13Warm-season seed needs 4-inch soil at 65°F or more, and seedlings need the rest of summer to establish. Next window opens about Apr 19.
  • Fall pre-emergent (Poa annua) Germinating since Oct 19 Typical: By Oct 84-inch soil fell below 70°F on Oct 19, when annual bluegrass begins to sprout. A pre-emergent now only stops later flushes; plan to apply by about Oct 8 next year.
  • Dormancy and last feeding Expected about Nov 12 Typical: Around Nov 12Warm-season grass slows and browns once 4-inch soil stays under 55°F, typically Nov 12. Make the last nitrogen feeding at least a month before that.

The last 60 days and the week ahead

Huntsville soil is 7° warmer than normal for Nov 3, warmer than on 82% of those dates since 2005, and 4° cooler than a year ago.

The green line is our estimate of the daily average soil temperature 2 inches down, driven by temperatures at Huntsville Intnl Ap, 11.7 km from the city center. The dashed part runs the National Weather Service forecast through the same model. Hover or tap for any day.

2-inch soil, estimated From the NWS forecast Normal Normal range (8 years in 10)

40°50°60°70°80°90° 50°F55°F Nov 3 Sep 15Oct 1Oct 15Nov 1
Show the numbers
Date2-inch soil4-inch soilAir high / lowNormal (2 in)
Oct 2160°63°79° / 41°62°
Oct 2260°63°79° / 41°61°
Oct 2360°62°77° / 40°61°
Oct 2461°62°75° / 50°61°
Oct 2561°62°74° / 48°61°
Oct 2660°62°73° / 44°61°
Oct 2760°61°75° / 43°60°
Oct 2861°62°76° / 50°60°
Oct 2961°63°79° / 48°60°
Oct 3062°63°82° / 47°59°
Oct 3164°64°75° / 58°59°
Nov 162°63°65° / 53°58°
Nov 264°65°78° / 58°58°
Nov 365°66°75° / 62°58°
Nov 4 (forecast)64°65°74° / 52°58°
Nov 5 (forecast)63°65°73° / 48°58°
Nov 6 (forecast)61°63°72° / 43°58°
Nov 7 (forecast)58°60°63° / 37°57°
Nov 8 (forecast)55°58°62° / 36°57°
Nov 9 (forecast)54°57°65° / 37°57°
Nov 10 (forecast)54°56°69° / 39°56°
A low mat of bermudagrass with fine blades and seed heads
Bermudagrass, the warm-season grass behind most lawns from the Carolinas to Texas.

Which grass grows in Huntsville

With January averaging 43°F, Huntsville sits in the transition zone. Tall fescue is the common cool-season choice; bermudagrass and zoysia are the common warm-season ones. Use the switch above to see the calendar for yours.

Huntsville soil through the year

Weekly 2-inch estimates for 2026 so far against 2025 and the normal for each week. The red lines mark 50°F, when crabgrass pre-emergent should be down, and 65°F, when warm-season seed sprouts well.

2026 2025 Normal (2005–2025) 8 years in 10

30°40°50°60°70°80°90° 50°F65°F 2026 JanFebMarAprMayJunJulAugSepOctNovDec

Normal by month

Month2 in4 inAir
Jan42°44°43°
Feb45°46°47°
Mar54°55°54°
Apr62°63°63°
May71°72°71°
Jun80°81°79°
Jul83°84°81°
Aug82°84°81°
Sep77°78°75°
Oct65°67°64°
Nov53°55°53°
Dec46°47°46°

Soil: average of our daily estimates, 2005–2025. Air: NOAA 1991–2020 normals for the station.

Typical lawn dates in Huntsville

Each date is when the soil estimate (or the air, for freezes) crossed the threshold, year by year since 2005. “Early” and “late” are the 10th and 90th percentile years, so 8 years in 10 fall between them.

EventEarly yearTypicalLate year2026
Last spring freeze (32°F) Mar 7Mar 21Apr 8 Mar 17
Crabgrass model: 250 growing degree days Jan 14Jan 27Feb 3 Jan 17
Pre-emergent window opens (2-inch soil 50°F) Feb 5Feb 15Mar 12 Feb 18
Crabgrass begins to sprout (2-inch soil 55°F) Feb 24Mar 13Apr 3 Mar 5
Cool-season lawns start growing (4-inch soil 55°F) Feb 23Mar 12Apr 2 Mar 5
Warm-season seeding opens (4-inch soil 65°F) Apr 1Apr 19May 4 Apr 4
Cool-season seeding opens (4-inch soil under 70°F) Sep 29Oct 13Oct 19 Oct 20
Cool-season seeding ends (4-inch soil under 55°F) Nov 1Nov 12Nov 26 not yet
Warm-season grass goes dormant (4-inch under 55°F) Nov 1Nov 12Nov 26 not yet
First fall freeze (32°F) Oct 26Nov 6Nov 21 not yet
Large crabgrass with its spreading finger-like seed heads
Large crabgrass in seed. Each plant can drop thousands of seeds that wait for warm spring soil.
A dug soil profile showing layers of silt, loam and clay
A soil profile. The top few inches warm and cool fastest; that is where seeds sprout.

Checked against a real sensor

Measured nearby: 66°F at 2 inches on Nov 3, at the USDA SCAN site “AAMU-JTG”, 9 miles away.

Our estimate for Huntsville on Nov 3 is 65°F; the sensor read 65°F at 4 inches against our 66°F. Sensor sites sit in open, unwatered ground outside town, so they often run a few degrees apart from city lawns; use them as a check on the trend.

There is no soil sensor in most cities, so we estimate it. Shallow soil follows air temperature with a lag of a few days, and runs a little warmer than the air in fall. We fitted that relationship to 190 USDA soil-sensor stations; on years held out of the fit, the estimate was off by 3.3°F on an average day, and it put the spring 55°F date within a median of 3 days. Read the methodology.

Weather: RCC ACIS station KHSV (HUNTSVILLE INTNL AP), daily data since 1937. Forecast: National Weather Service, HUN office, issued Nov 4, 2026, 6:50 AM EST. Last observed day: Nov 3, 2026.

Huntsville questions

Botanical line drawing of slender crabgrass from 1913
Slender crabgrass, from Britton and Brown, An Illustrated Flora of the Northern United States, 1913.

What is the soil temperature in Huntsville today? Our estimate for Nov 3 is 65°F at 2 inches and 66°F at 4 inches, as a daily average. Early-morning soil runs a few degrees cooler than that, and afternoon soil warmer.

When should I put down crabgrass pre-emergent in Huntsville? Apply when 2-inch soil holds about 50°F and before it holds 55°F. That has typically been Feb 15 to Mar 13 in Huntsville. For 2026 the window closed on Mar 5.

When can I seed bermudagrass in Huntsville? Wait for late spring. Warm-season seed needs 4-inch soil at 65°F or more, and seedlings need the rest of summer to establish. Next window opens about Apr 19.

Is it too late to fertilize in Huntsville? Expected about Nov 12. Warm-season grass slows and browns once 4-inch soil stays under 55°F, typically Nov 12. Make the last nitrogen feeding at least a month before that.

When is the last frost in Huntsville? The last 32°F night of spring has typically come around Mar 21, and as late as Apr 8 in 1 year in 10. The first fall freeze typically arrives around Nov 6.

Why 2 inches and 4 inches? Crabgrass and most weed seeds sprout in the top inch or two, so pre-emergent timing follows 2-inch soil. Grass seed and roots respond to the slightly steadier soil at about 4 inches.

How accurate is this? It is a model, not a probe in your yard. Expect about 3–4°F of difference on a given day; shade, slope, mulch and irrigation all move real soil. The dates and trends are more reliable than any single day.

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