FrostDateCheck

Oklahoma City, OK 73105 Frost Dates

When can you plant in Oklahoma City, OK?

Zone 7b

The last spring frost here typically falls around 04/02, about 217 days from today. The first fall frost typically arrives around 11/04, about 216 frost-free days later.

Oklahoma City sits in USDA Zone 7b (5 to 10°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 10 weeks of growing season left in Oklahoma City before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

How much risk comes with planting early here

04/02 is the middle of 30 years of NOAA records, not a promise. Plant by 03/14 and you're betting against frost in roughly 9 years out of 10. 04/18 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Oklahoma City compares

At roughly 216 frost-free days, Oklahoma City places 13,666 of 40,283 ZIP codes in this dataset. Within OK, it ranks 303 of 764.

Learn more

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