Soilclock

Oklahoma 65°F soil temperature

Updated Nov 4, 2026, 7:41 AM EST

The middle reading of 3 Oklahoma cities, 2 inches down, on Nov 3. Pick a city for its forecast and lawn calendar.

Oklahoma cities today

Estimated daily average soil temperature at 2 inches, the difference from normal for the date, and the change over the last week. Oklahoma spans the transition zone, where both cool- and warm-season lawns grow.

City2 in4 invs normal7 daysCrabgrass windowFall seeding ends
Oklahoma City 63°65° +8°−2° Mar 2 – Mar 17 Nov 15
Tulsa 66°67° +9°−1° Mar 3 – Mar 15 Nov 15
Lawton 65°67° +8°−1° Feb 24 – Mar 17 Nov 18

When to apply pre-emergent in Oklahoma

Crabgrass pre-emergent goes down when 2-inch soil holds about 50°F. Across Oklahoma that has typically happened first in Lawton, around Feb 24, and last in Tulsa, around Mar 3. The window closes when soil holds 55°F and crabgrass starts sprouting.

A low mat of bermudagrass with fine blades and seed heads
Bermudagrass, the warm-season grass behind most lawns from the Carolinas to Texas.

Last good week to seed in Oklahoma

Tall fescue and bluegrass seed sprouts best while 4-inch soil is between 55 and 70°F. The typical last day above 55°F:

What grows in Oklahoma lawns

Crabgrass is the weed spring pre-emergents are timed for. Lawns here are mostly a mix of tall fescue, bermudagrass and zoysia.

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.
Close view of a Kentucky bluegrass lawn
Kentucky bluegrass, the most common cool-season lawn grass in the northern US.
A low mat of bermudagrass with fine blades and seed heads
Bermudagrass, the warm-season grass behind most lawns from the Carolinas to Texas.

Other states