Oakland, OK 73440 Frost Dates
Frost dates for Oakland, OK, ZIP 73440
Typically, the last spring freeze lands around 04/06, roughly 221 days out. The first fall frost typically arrives around 11/02, about 211 frost-free days later.
The USDA Plant Hardiness Zone Map puts Oakland in Zone 8a (10 to 15°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
Zone 8a around Oakland has about 9 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 04/06 isn't a guarantee
04/06 is the middle of 30 years of NOAA records, not a promise. Plant by 03/16 and you're betting against frost in roughly 9 years out of 10. 04/24 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Oakland compares
Oakland's growing season runs about 211 days, ranking 14,816 of 40,283 US ZIP codes measured here, longest to shortest. Within OK, it ranks 447 of 764.
Learn more
local microclimates explains what one yard in Oakland can differ from the 73440 normal, and zone vs. frost date explains why Zone 8a and Oakland's frost date answer different questions.