Diamondhead, MS 39525 Frost Dates
Frost dates for Diamondhead, MS, ZIP 39525
The last spring frost here typically falls around 02/21, about 177 days from today. The first fall frost typically arrives around 12/03, about 287 frost-free days later.
The USDA Plant Hardiness Zone Map puts Diamondhead in Zone 9a (20 to 25°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 9a around Diamondhead has about 14 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.
The actual range around Diamondhead's last frost
02/21 is the middle of 30 years of NOAA records, not a promise. Plant by 01/25 and you're betting against frost in roughly 9 years out of 10. 03/18 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Diamondhead compares
Diamondhead's growing season runs about 287 days, ranking 4,590 of 40,283 US ZIP codes measured here, longest to shortest. Within MS, it ranks 16 of 523.
Learn more
local microclimates explains what one yard in Diamondhead can differ from the 39525 normal, and zone vs. frost date explains why Zone 9a and Diamondhead's frost date answer different questions.