Frost dates · USDA zone 9b

Frost dates for Laredo, TX

Laredo, TX sees its last 32 °F night of spring around January 25 and its first of fall around December 17 — a 329-day freeze-free season in a typical year.

Jan 25Last spring frostmedian · 1 in 10 years after Feb 25
Dec 17First fall frostmedian · 1 in 10 years before Nov 23
329Freeze-free daysmedian year · ≥288 in 9 of 10
9bUSDA zone2023 map · ZIP 78041
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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 25 (prior winter)Jan 19 (next year)
Median — 1 year in 2Jan 25Dec 17
1 year in 10Feb 25Nov 23

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: 329 days median, at least 288 in 9 years of 10, at least 362 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 8 and first of Dec 30.

Laredo planting calendar, 2027

Every row runs from the median last frost (Jan 25) and median first frost (Dec 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)Nov 2Dec 28Apr 17110 from transplant
Mustard greensGarnet Giant (Brassica juncea)Direct sowJan 25Feb 2430 from sow
CilantroSlow Bolt (Coriandrum sativum)Jan 11Jan 11Feb 2545 from sow
Genovese BasilGenoveseDec 28Feb 8Apr 960 from transplant
CayenneLong Slim Cayenne (Capsicum annuum)Nov 30Feb 1Apr 1775 from transplant
HabaneroOrange Habanero (Capsicum chinense)Nov 16Feb 8May 1495 from transplant
JalapeñoEarly Jalapeño (Capsicum annuum)Nov 30Feb 1Apr 1775 from transplant
Marconi Red PepperMarconi Red (Capsicum annuum)Nov 30Feb 1Apr 2280 from transplant
SerranoSerrano Tampiqueño (Capsicum annuum)Nov 30Feb 1Apr 2280 from transplant
Nantes CarrotScarlet NantesJan 11Jan 11Mar 2270 from sow
TomatilloToma VerdeDec 14Feb 1Apr 1270 from transplant
Roma TomatoRoma VF (determinate paste)Dec 14Feb 1Apr 1775 from transplant
San Marzano TomatoSan Marzano (indeterminate paste)Dec 14Feb 1Apr 2280 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.

Laredo frost questions

When is the last frost in Laredo, TX?

The median last 32 °F freeze at LAREDO 2, TX is January 25: half of years see a later one. One year in ten, a freeze still comes after February 25; nine years in ten, it comes after December 25 (prior winter). Source: NOAA NCEI 1991–2020 U.S. Climate Normals.

When is the first frost in Laredo, TX?

The median first 32 °F freeze of fall is December 17. One year in ten it arrives before November 23; nine years in ten, before January 19 (next year).

How long is the growing season in Laredo, TX?

329 days between the last spring and first fall 32 °F freeze in a median year. Nine years in ten the season runs at least 288 days; one year in ten, at least 362 days.

What growing zone is Laredo, TX?

USDA hardiness zone 9b, per the 2023 USDA Plant Hardiness Zone Map for ZIP 78041. 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 Laredo, TX?

Start Roma VF (determinate paste) seeds indoors around Dec 14 and transplant around Feb 1, 1 week after the median last frost. To cut the freeze risk to one year in ten, wait for Feb 25. First ripe fruit lands around Apr 17.

When should I plant peppers in Laredo, TX?

Sow jalapeño indoors on a heat mat around Nov 30; transplant no earlier than Feb 1, and wait past it until nights hold above 50 °F — that can run weeks later. First green pods around Apr 17.

Nearby in Texas

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