Milburn, OK 73432 Frost Dates
When can you plant in Milburn, OK?
The last spring frost here typically falls around 03/31, about 215 days from today. The first fall frost typically arrives around 11/05, about 221 frost-free days later.
Zone 8a (10 to 15°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Milburn, not a forecast for this year.
What to do before the first frost
About 10 weeks of growing season left in Milburn before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 03/31 isn't a guarantee
03/31 is the middle of 30 years of NOAA records, not a promise. Plant by 03/12 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 Milburn compares
Milburn's growing season runs about 221 days, ranking 12,595 of 40,283 US ZIP codes measured here, longest to shortest. Within OK, it ranks 135 of 764.
Learn more
local microclimates covers what one yard in Milburn can differ from the 73432 normal. zone vs. frost date covers why Zone 8a and Milburn's frost date answer different questions.