Frost dates · USDA zone 8b

Frost dates for Lewisville, TX

Lewisville, TX sees its last 32 °F night of spring around March 14 and its first of fall around November 17 — a 249-day freeze-free season in a typical year.

Mar 14Last spring frostmedian · 1 in 10 years after Apr 3
Nov 17First fall frostmedian · 1 in 10 years before Nov 2
249Freeze-free daysmedian year · ≥223 in 9 of 10
8bUSDA zone2023 map · ZIP 75057
Build a Lewisville sauce plan →

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 10Feb 23Dec 4
Median — 1 year in 2Mar 14Nov 17
1 year in 10Apr 3Nov 2

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: 249 days median, at least 223 in 9 years of 10, at least 275 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 Mar 1 and first of Nov 29.

Lewisville planting calendar, 2027

Every row runs from the median last frost (Mar 14) and median first frost (Nov 17) 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)Dec 20Feb 14Jun 4110 from transplant
Mustard greensGarnet Giant (Brassica juncea)Direct sowMar 14Apr 1330 from sow
CilantroSlow Bolt (Coriandrum sativum)Feb 28Feb 28Apr 1445 from sow
Genovese BasilGenoveseFeb 14Mar 28May 2760 from transplant
CayenneLong Slim Cayenne (Capsicum annuum)Jan 17Mar 21Jun 475 from transplant
HabaneroOrange Habanero (Capsicum chinense)Jan 3Mar 28Jul 195 from transplant
JalapeñoEarly Jalapeño (Capsicum annuum)Jan 17Mar 21Jun 475 from transplant
Marconi Red PepperMarconi Red (Capsicum annuum)Jan 17Mar 21Jun 980 from transplant
SerranoSerrano Tampiqueño (Capsicum annuum)Jan 17Mar 21Jun 980 from transplant
Nantes CarrotScarlet NantesFeb 28Feb 28May 970 from sow
TomatilloToma VerdeJan 31Mar 21May 3070 from transplant
Roma TomatoRoma VF (determinate paste)Jan 31Mar 21Jun 475 from transplant
San Marzano TomatoSan Marzano (indeterminate paste)Jan 31Mar 21Jun 980 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.

Lewisville frost questions

When is the last frost in Lewisville, TX?

The median last 32 °F freeze at GRAPEVINE DAM, TX is March 14: half of years see a later one. One year in ten, a freeze still comes after April 3; nine years in ten, it comes after February 23. Source: NOAA NCEI 1991–2020 U.S. Climate Normals.

When is the first frost in Lewisville, TX?

The median first 32 °F freeze of fall is November 17. One year in ten it arrives before November 2; nine years in ten, before December 4.

How long is the growing season in Lewisville, TX?

249 days between the last spring and first fall 32 °F freeze in a median year. Nine years in ten the season runs at least 223 days; one year in ten, at least 275 days.

What growing zone is Lewisville, TX?

USDA hardiness zone 8b, per the 2023 USDA Plant Hardiness Zone Map for ZIP 75057. 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 Lewisville, TX?

Start Roma VF (determinate paste) seeds indoors around Jan 31 and transplant around Mar 21, 1 week after the median last frost. To cut the freeze risk to one year in ten, wait for Apr 3. First ripe fruit lands around Jun 4.

When should I plant peppers in Lewisville, TX?

Sow jalapeño indoors on a heat mat around Jan 17; transplant no earlier than Mar 21, and wait past it until nights hold above 50 °F — that can run weeks later. First green pods around Jun 4.

Nearby in Texas

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