Frost dates · USDA zone 9b

Frost dates for Deltona, FL

Deltona, FL sees its last 32 °F night of spring around January 26 and its first of fall around January 12 (next year) — a 359-day freeze-free season in a typical year.

Jan 26Last spring frostmedian · 1 in 10 years after Feb 24
Jan 12First fall frostmedian · 1 in 10 years before Dec 20
359Freeze-free daysmedian year · ≥318 in 9 of 10
9bUSDA zone2023 map · ZIP 32738
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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

OddsLast spring freeze afterFirst fall freeze before
9 years in 10Dec 31 (prior winter)Feb 10 (next year)
Median — 1 year in 2Jan 26Jan 12 (next year)
1 year in 10Feb 24Dec 20

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: 359 days median, at least 318 in 9 years of 10, no freeze at all 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 13 and first of Jan 11 (next year).

Deltona planting calendar, 2027

Every row runs from the median last frost (Jan 26) and median first frost (Jan 12) above, using each cultivar's days to maturity. Same engine as the Plan Builder.

CropStart indoorsTransplant / plantFirst harvestDays
Hardneck GarlicSiberian (porcelain hardneck)—Oct 15prior fallJun 12240 from sow
Spanish OnionYellow Sweet Spanish (long-day)Nov 3Dec 29Apr 18110 from transplant
Mustard greensGarnet Giant (Brassica juncea)Direct sowJan 26Feb 2530 from sow
CilantroSlow Bolt (Coriandrum sativum)Jan 12Jan 12Feb 2645 from sow
Genovese BasilGenoveseDec 29Feb 9Apr 1060 from transplant
CayenneLong Slim Cayenne (Capsicum annuum)Dec 1Feb 2Apr 1875 from transplant
HabaneroOrange Habanero (Capsicum chinense)Nov 17Feb 9May 1595 from transplant
JalapeñoEarly Jalapeño (Capsicum annuum)Dec 1Feb 2Apr 1875 from transplant
Marconi Red PepperMarconi Red (Capsicum annuum)Dec 1Feb 2Apr 2380 from transplant
SerranoSerrano Tampiqueño (Capsicum annuum)Dec 1Feb 2Apr 2380 from transplant
Nantes CarrotScarlet NantesJan 12Jan 12Mar 2370 from sow
TomatilloToma VerdeDec 15Feb 2Apr 1370 from transplant
Roma TomatoRoma VF (determinate paste)Dec 15Feb 2Apr 1875 from transplant
San Marzano TomatoSan Marzano (indeterminate paste)Dec 15Feb 2Apr 2380 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.

Deltona frost questions

When is the last frost in Deltona, FL?

The median last 32 °F freeze at SANFORD, FL is January 26: half of years see a later one. One year in ten, a freeze still comes after February 24; nine years in ten, it comes after December 31 (prior winter). Source: NOAA NCEI 1991–2020 U.S. Climate Normals.

When is the first frost in Deltona, FL?

The median first 32 °F freeze of fall is January 12 (next year). One year in ten it arrives before December 20; nine years in ten, before February 10 (next year).

How long is the growing season in Deltona, FL?

359 days between the last spring and first fall 32 °F freeze in a median year. Nine years in ten the season runs at least 318 days; one year in ten, no freeze at all.

What growing zone is Deltona, FL?

USDA hardiness zone 9b, per the 2023 USDA Plant Hardiness Zone Map for ZIP 32738. 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 Deltona, FL?

Start Roma VF (determinate paste) seeds indoors around Dec 15 and transplant around Feb 2, 1 week after the median last frost. To cut the freeze risk to one year in ten, wait for Feb 24. First ripe fruit lands around Apr 18.

When should I plant peppers in Deltona, FL?

Sow jalapeño indoors on a heat mat around Dec 1; transplant no earlier than Feb 2, and wait past it until nights hold above 50 °F — that can run weeks later. First green pods around Apr 18.

Nearby in Florida

All Florida frost dates → · How frost-date math drives a sowing calendar →