FrostDateCheck

Terral, OK 73569 Frost Dates

Frost dates for Terral, OK, ZIP 73569

Zone 8a

Typically, the last spring freeze lands around 03/24, roughly 208 days out. The first fall frost typically arrives around 11/08, about 229 frost-free days later.

Terral sits in USDA Zone 8a (10 to 15°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.

What to do before the first frost

Zone 8a around Terral has about 10 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.

Why 03/24 isn't a guarantee

03/24 is the middle of 30 years of NOAA records, not a promise. Plant by 03/05 and you're betting against frost in roughly 9 years out of 10. 04/13 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Terral compares

Terral's growing season runs about 229 days, ranking 10,660 of 40,283 US ZIP codes measured here, longest to shortest. Within OK, it ranks 45 of 764.

Learn more

the frost range explains how to read the range around Terral's dates instead of trusting one, and local microclimates explains what one yard in Terral can differ from the 73569 normal.