FrostDateCheck

Carrier, OK 73727 Frost Dates

When can you plant in Carrier, OK?

Zone 7a

Typically, the last spring freeze lands around 04/09, roughly 224 days out. The first fall frost typically arrives around 10/31, about 205 frost-free days later.

Carrier sits in USDA Zone 7a (0 to 5°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

About 9 weeks of growing season left in Carrier before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

Why 04/09 isn't a guarantee

04/09 is the middle of 30 years of NOAA records, not a promise. Plant by 03/25 and you're betting against frost in roughly 9 years out of 10. 04/23 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Carrier compares

Carrier's growing season runs about 205 days, ranking 16,427 of 40,283 US ZIP codes measured here, longest to shortest. Within OK, it ranks 592 of 764.

Learn more

zone vs. frost date covers why Zone 7a and Carrier's frost date answer different questions. the frost range covers how to read the range around Carrier's dates instead of trusting one.