Frost dates · USDA zone 9a
Frost dates for Biloxi, MS
Biloxi, MS sees its last 32 °F night of spring around February 12 and its first of fall around December 14 — a 301-day freeze-free season in a typical year.
Pick a sauce; the Plan Builder runs this station's dates and hands back the calendar, plant count and gear list.
Freeze odds, by date
| Odds | Last spring freeze after | First fall freeze before |
|---|---|---|
| 9 years in 10 | Jan 18 | Jan 11 (next year) |
| Median — 1 year in 2 | Feb 12 | Dec 14 |
| 1 year in 10 | Mar 11 | Nov 16 |
The top row is the risky edge: in 9 years of 10 a spring freeze still comes after it, so tender transplants set out then need cover. The bottom row is the cautious date — only 1 year in 10 freezes after it — and the one to plan uncovered tender transplants against. Freeze-free season: 301 days median, at least 265 in 9 years of 10, at least 336 days in 1 year of 10. NOAA ranks season length year by year, so it is not the gap between two rows above. A hard freeze (28 °F) has a median last date of Jan 27 and first of Jan 2 (next year).
Biloxi planting calendar, 2027
Every row runs from the median last frost (Feb 12) and median first frost (Dec 14) above, using each cultivar's days to maturity. Same engine as the Plan Builder.
| Crop | Start indoors | Transplant / plant | First harvest | Days |
|---|---|---|---|---|
| Hardneck GarlicSiberian (porcelain hardneck) | — | Oct 15prior fall | Jun 12 | 240 from sow |
| Spanish OnionYellow Sweet Spanish (long-day) | Nov 20 | Jan 15 | May 5 | 110 from transplant |
| Mustard greensGarnet Giant (Brassica juncea) | Direct sow | Feb 12 | Mar 14 | 30 from sow |
| CilantroSlow Bolt (Coriandrum sativum) | Jan 29 | Jan 29 | Mar 15 | 45 from sow |
| Genovese BasilGenovese | Jan 15 | Feb 26 | Apr 27 | 60 from transplant |
| CayenneLong Slim Cayenne (Capsicum annuum) | Dec 18 | Feb 19 | May 5 | 75 from transplant |
| HabaneroOrange Habanero (Capsicum chinense) | Dec 4 | Feb 26 | Jun 1 | 95 from transplant |
| JalapeñoEarly Jalapeño (Capsicum annuum) | Dec 18 | Feb 19 | May 5 | 75 from transplant |
| Marconi Red PepperMarconi Red (Capsicum annuum) | Dec 18 | Feb 19 | May 10 | 80 from transplant |
| SerranoSerrano Tampiqueño (Capsicum annuum) | Dec 18 | Feb 19 | May 10 | 80 from transplant |
| Nantes CarrotScarlet Nantes | Jan 29 | Jan 29 | Apr 9 | 70 from sow |
| TomatilloToma Verde | Jan 1 | Feb 19 | Apr 30 | 70 from transplant |
| Roma TomatoRoma VF (determinate paste) | Jan 1 | Feb 19 | May 5 | 75 from transplant |
| San Marzano TomatoSan Marzano (indeterminate paste) | Jan 1 | Feb 19 | May 10 | 80 from transplant |
Tight means first harvest lands within two weeks of the median first fall frost: start that crop indoors on time or cover it in fall.
What sauce can Biloxi grow?
Each sauce, scheduled for a Biloxi container garden: when the first seeds go in and when enough fruit has ripened for one batch.
Biloxi frost questions
When is the last frost in Biloxi, MS?
The median last 32 °F freeze at BILOXI, MS is February 12: half of years see a later one. One year in ten, a freeze still comes after March 11; nine years in ten, it comes after January 18. Source: NOAA NCEI 1991–2020 U.S. Climate Normals.
When is the first frost in Biloxi, MS?
The median first 32 °F freeze of fall is December 14. One year in ten it arrives before November 16; nine years in ten, before January 11 (next year).
How long is the growing season in Biloxi, MS?
301 days between the last spring and first fall 32 °F freeze in a median year. Nine years in ten the season runs at least 265 days; one year in ten, at least 336 days.
What growing zone is Biloxi, MS?
USDA hardiness zone 9a, per the 2023 USDA Plant Hardiness Zone Map for ZIP 39534. A zone describes the coldest winter night, not when frost ends, so it is the wrong number for a planting calendar — the frost dates on this page are the right one.
When should I plant tomatoes in Biloxi, MS?
Start Roma VF (determinate paste) seeds indoors around Jan 1 and transplant around Feb 19, 1 week after the median last frost. To cut the freeze risk to one year in ten, wait for Mar 11. First ripe fruit lands around May 5.
When should I plant peppers in Biloxi, MS?
Sow jalapeño indoors on a heat mat around Dec 18; transplant no earlier than Feb 19, and wait past it until nights hold above 50 °F — that can run weeks later. First green pods around May 5.
Nearby in Mississippi
- Gulfportlast frost Feb 12
- Hattiesburglast frost Mar 7
- Jacksonlast frost Mar 6
- Olive Branchlast frost Mar 26
- Southavenlast frost Mar 16
All Mississippi frost dates → · How frost-date math drives a sowing calendar →