Biloxi, MS 39531 Frost Dates
When can you plant in Biloxi, MS?
Around 02/12 is the usual last spring frost, about 168 days away. The first fall frost typically arrives around 12/14, about 301 frost-free days later.
Biloxi sits in USDA Zone 9a (20 to 25°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 15 weeks of growing season left in Biloxi before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 02/12 isn't a guarantee
02/12 is the middle of 30 years of NOAA records, not a promise. Plant by 01/18 and you're betting against frost in roughly 9 years out of 10. 03/11 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Biloxi compares
Biloxi's growing season runs about 301 days, ranking 3,933 of 40,283 US ZIP codes measured here, longest to shortest. Within MS, it ranks 2 of 523.
Learn more
zone vs. frost date covers why Zone 9a and Biloxi's frost date answer different questions. the frost range covers how to read the range around Biloxi's dates instead of trusting one.