When to plant in Biloxi, MS
USDA Zone 9aEverything below — frost dates, hardiness zone, and what to plant when in Biloxi, Mississippi — is derived from the closest NOAA station with complete climate normals.
Biloxi enjoys a long ~305-day frost-free season — you can succession-sow, fit in a second crop, and grow long-season heat-lovers with room to spare. In zone 9a, frost is a minor factor for Biloxi — most perennials thrive, and annual vegetables can go out early and stay late.
The average last spring frost in Biloxi is now 7 days earlier than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
BILOXI · 1991–2020The date the last spring and first fall frost occur, by threshold and probability. A 90% date is later in spring — and earlier in fall — than a 10% date; the 50% · 32°F row is what most gardeners plan around. These are Biloxi’s own odds, recorded at BILOXI.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Mar 20 | Mar 1 | Feb 6 | Nov 6 | Nov 26 | Dec 23 |
| 32°F | Mar 11 | Feb 12 | Jan 18 | Nov 16 | Dec 14 | Jan 11 |
| 28°F | Feb 28 | Jan 27 | Jan 2 | Dec 2 | Jan 2 | Jan 27 |
Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.
What to plant now
TODAY · JULY 19Nothing new to sow or transplant outdoors in the next few weeks — a seasonal lull. Check the full-year calendar below for the next window.
Full-year planting calendar
Each bar is the exact window to take a planting action in Biloxi, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 19 km · complete 32°F normalsWhen stations disagree by more than a few days, that spread is real microclimate variation — elevation, water, urban heat. Judge which station best matches your own yard.
Biloxi planting FAQ
When is the last spring frost in Biloxi, MS?
Plan for the last spring frost in Biloxi around February 12 (the date it has a 50% chance of a 32°F freeze). Anything frost-sensitive should go out after it.
When is the first fall frost in Biloxi, MS?
In Biloxi, the first 32°F freeze of fall lands around December 14 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Biloxi in?
Biloxi is in USDA hardiness zone 9a. In zone 9a, winters are mild — many tender perennials overwinter here.
How long is the growing season in Biloxi?
Biloxi has about 305 frost-free days — a long growing season — between the average last spring frost (February 12) and first fall frost (December 14).
When should I plant tomatoes in Biloxi?
For Biloxi, sow tomatoes indoors about December 18–January 1 and move the seedlings out around February 19, after the last spring frost.
Never miss a window in Biloxi
An email when it’s time to start seeds, transplant, and sow — timed to Biloxi’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- D'Iberville · 4 km
- Gulfport · 13 km
- Ocean Springs · 14 km
- Long Beach · 23 km
- Gautier · 27 km
- Pascagoula · 37 km
- Moss Point · 39 km
- Bay St. Louis · 42 km
Frost dates recorded at BILOXI, 7 km from the city center · 1991–2020 NOAA climate normals · zone from the USDA/PRISM 2023 map. How we compute this.
BlissGarden. "When to Plant in Biloxi, MS — Frost Dates & Zone 9a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00220792. Retrieved from https://blissgarden.com/mississippi/biloxi.