Soilclock

Tuscaloosa 68°F soil temperature

4 inches down: 68°F · 7-day change +7°

Updated Nov 4, 2026, 7:40 AM EST · Alabama

Tuscaloosa, Alabama. Estimated 2-inch daily average for Nov 3, 9° above normal, falling to 57° by Nov 10.

What to do in Tuscaloosa now

Tuscaloosa 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 Tuscaloosa Arpt Asos; each status uses this year's soil estimates.

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

  • Crabgrass pre-emergent Closed Feb 19 Typical: Feb 10 – Mar 12-inch soil held 55°F for a week from Feb 19, so crabgrass was sprouting. Next window: about Feb 10 – Mar 1, 2027.
  • Seed or sod Wait for late spring Typical: Apr 8 – Oct 17Warm-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 8.
  • Fall pre-emergent (Poa annua) Germinating since Oct 20 Typical: By Oct 164-inch soil fell below 70°F on Oct 20, when annual bluegrass begins to sprout. A pre-emergent now only stops later flushes; plan to apply by about Oct 16 next year.
  • Dormancy and last feeding Expected about Nov 18 Typical: Around Nov 18Warm-season grass slows and browns once 4-inch soil stays under 55°F, typically Nov 18. Make the last nitrogen feeding at least a month before that.

The last 60 days and the week ahead

Tuscaloosa soil is 9° warmer than normal for Nov 3, warmer than on 90% of those dates since 2005, and 16° warmer than a year ago.

The green line is our estimate of the daily average soil temperature 2 inches down, driven by temperatures at Tuscaloosa Arpt Asos, 8.5 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°100° 50°F55°F Nov 3 Sep 15Oct 1Oct 15Nov 1
Show the numbers
Date2-inch soil4-inch soilAir high / lowNormal (2 in)
Oct 2162°64°80° / 44°63°
Oct 2262°64°80° / 45°63°
Oct 2362°64°79° / 46°62°
Oct 2462°64°76° / 46°62°
Oct 2562°63°76° / 46°62°
Oct 2661°63°74° / 47°62°
Oct 2761°63°77° / 46°62°
Oct 2862°64°79° / 50°61°
Oct 2962°64°80° / 46°61°
Oct 3063°64°80° / 50°60°
Oct 3165°66°78° / 60°60°
Nov 165°66°70° / 64°59°
Nov 267°67°80° / 60°59°
Nov 368°68°75° / 66°59°
Nov 4 (forecast)67°68°77° / 55°59°
Nov 5 (forecast)66°67°77° / 52°59°
Nov 6 (forecast)65°66°76° / 47°59°
Nov 7 (forecast)61°64°67° / 41°59°
Nov 8 (forecast)59°62°66° / 40°59°
Nov 9 (forecast)57°60°68° / 40°58°
Nov 10 (forecast)57°59°71° / 42°58°
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 Tuscaloosa

With January averaging 46°F, Tuscaloosa 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.

Tuscaloosa 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°100° 50°F65°F 2026 JanFebMarAprMayJunJulAugSepOctNovDec

Normal by month

Month2 in4 inAir
Jan46°47°46°
Feb49°50°50°
Mar57°58°57°
Apr64°65°64°
May73°74°72°
Jun81°82°79°
Jul84°85°82°
Aug83°85°81°
Sep78°80°76°
Oct67°69°65°
Nov55°57°54°
Dec49°50°48°

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

Typical lawn dates in Tuscaloosa

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 1Mar 19Apr 8 Mar 17
Crabgrass model: 250 growing degree days Jan 12Jan 18Jan 29 Jan 13
Pre-emergent window opens (2-inch soil 50°F) early FebFeb 10Feb 27 Feb 13
Crabgrass begins to sprout (2-inch soil 55°F) Feb 22Mar 1Mar 20 Feb 19
Cool-season lawns start growing (4-inch soil 55°F) Feb 9Feb 26Mar 17 Feb 19
Warm-season seeding opens (4-inch soil 65°F) Mar 18Apr 8Apr 19 Mar 9
Cool-season seeding opens (4-inch soil under 70°F) Oct 6Oct 17Oct 23 Oct 21
Cool-season seeding ends (4-inch soil under 55°F) Nov 11Nov 18Nov 29 not yet
Warm-season grass goes dormant (4-inch under 55°F) Nov 11Nov 18Nov 29 not yet
First fall freeze (32°F) Oct 29Nov 10Nov 25 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.

Where these numbers come from

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 KTCL (TUSCALOOSA ARPT ASOS), daily data since 1948. Forecast: National Weather Service, BMX office, issued Nov 4, 2026, 6:06 AM EST. Last observed day: Nov 3, 2026.

Tuscaloosa 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 Tuscaloosa today? Our estimate for Nov 3 is 68°F at 2 inches and 68°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 Tuscaloosa? Apply when 2-inch soil holds about 50°F and before it holds 55°F. That has typically been Feb 10 to Mar 1 in Tuscaloosa. For 2026 the window closed on Feb 19.

When can I seed bermudagrass in Tuscaloosa? 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 8.

Is it too late to fertilize in Tuscaloosa? Expected about Nov 18. Warm-season grass slows and browns once 4-inch soil stays under 55°F, typically Nov 18. Make the last nitrogen feeding at least a month before that.

When is the last frost in Tuscaloosa? The last 32°F night of spring has typically come around Mar 19, and as late as Apr 8 in 1 year in 10. The first fall freeze typically arrives around Nov 10.

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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