Osyka, MS 39632 Frost Dates
When can you plant in Osyka, MS?
Around 03/11 is the usual last spring frost, about 195 days away. The first fall frost typically arrives around 11/18, about 253 frost-free days later.
The USDA Plant Hardiness Zone Map puts Osyka in Zone 8b (15 to 20°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
About 12 weeks of growing season left in Osyka before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 03/11 isn't a guarantee
03/11 is the middle of 30 years of NOAA records, not a promise. Plant by 02/17 and you're betting against frost in roughly 9 years out of 10. 04/02 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Osyka compares
About 253 days separate Osyka's last and first frost, putting it 7,185 of 40,283 ZIP codes nationally. Within MS, it ranks 116 of 523.
Learn more
local microclimates covers what one yard in Osyka can differ from the 39632 normal. zone vs. frost date covers why Zone 8b and Osyka's frost date answer different questions.