Frost dates · USDA zone 8b

Frost dates for Bossier City, LA

Bossier City, LA sees its last 32 °F night of spring around March 6 and its first of fall around November 18 — a 256-day freeze-free season in a typical year.

Mar 6Last spring frostmedian · 1 in 10 years after Mar 26
Nov 18First fall frostmedian · 1 in 10 years before Nov 1
256Freeze-free daysmedian year · ≥231 in 9 of 10
8bUSDA zone2023 map · ZIP 71110
Build a Bossier City 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 15Dec 6
Median — 1 year in 2Mar 6Nov 18
1 year in 10Mar 26Nov 1

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: 256 days median, at least 231 in 9 years of 10, at least 284 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 Feb 22 and first of Dec 1.

Bossier City planting calendar, 2027

Every row runs from the median last frost (Mar 6) and median first frost (Nov 18) 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 12Feb 6May 27110 from transplant
Mustard greensGarnet Giant (Brassica juncea)Direct sowMar 6Apr 530 from sow
CilantroSlow Bolt (Coriandrum sativum)Feb 20Feb 20Apr 645 from sow
Genovese BasilGenoveseFeb 6Mar 20May 1960 from transplant
CayenneLong Slim Cayenne (Capsicum annuum)Jan 9Mar 13May 2775 from transplant
HabaneroOrange Habanero (Capsicum chinense)Dec 26Mar 20Jun 2395 from transplant
JalapeñoEarly Jalapeño (Capsicum annuum)Jan 9Mar 13May 2775 from transplant
Marconi Red PepperMarconi Red (Capsicum annuum)Jan 9Mar 13Jun 180 from transplant
SerranoSerrano Tampiqueño (Capsicum annuum)Jan 9Mar 13Jun 180 from transplant
Nantes CarrotScarlet NantesFeb 20Feb 20May 170 from sow
TomatilloToma VerdeJan 23Mar 13May 2270 from transplant
Roma TomatoRoma VF (determinate paste)Jan 23Mar 13May 2775 from transplant
San Marzano TomatoSan Marzano (indeterminate paste)Jan 23Mar 13Jun 180 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.

Bossier City frost questions

When is the last frost in Bossier City, LA?

The median last 32 °F freeze at RED RIVER RSCH STN, LA is March 6: half of years see a later one. One year in ten, a freeze still comes after March 26; nine years in ten, it comes after February 15. Source: NOAA NCEI 1991–2020 U.S. Climate Normals.

When is the first frost in Bossier City, LA?

The median first 32 °F freeze of fall is November 18. One year in ten it arrives before November 1; nine years in ten, before December 6.

How long is the growing season in Bossier City, LA?

256 days between the last spring and first fall 32 °F freeze in a median year. Nine years in ten the season runs at least 231 days; one year in ten, at least 284 days.

What growing zone is Bossier City, LA?

USDA hardiness zone 8b, per the 2023 USDA Plant Hardiness Zone Map for ZIP 71110. 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 Bossier City, LA?

Start Roma VF (determinate paste) seeds indoors around Jan 23 and transplant around Mar 13, 1 week after the median last frost. To cut the freeze risk to one year in ten, wait for Mar 26. First ripe fruit lands around May 27.

When should I plant peppers in Bossier City, LA?

Sow jalapeño indoors on a heat mat around Jan 9; transplant no earlier than Mar 13, and wait past it until nights hold above 50 °F — that can run weeks later. First green pods around May 27.

Nearby in Louisiana

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