Frost dates · USDA zone 9b

Frost dates for West Sacramento, CA

West Sacramento, CA sees its last 32 °F night of spring around February 2 and its first of fall around December 2 — a 301-day freeze-free season in a typical year.

Feb 2Last spring frostmedian · 1 in 10 years after Mar 5
Dec 2First fall frostmedian · 1 in 10 years before Nov 16
301Freeze-free daysmedian year · ≥266 in 9 of 10
9bUSDA zone2023 map · ZIP 95605
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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 10Jan 2Jan 2 (next year)
Median — 1 year in 2Feb 2Dec 2
1 year in 10Mar 5Nov 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 266 in 9 years of 10, at least 338 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 4 and first of Dec 16.

West Sacramento planting calendar, 2027

Every row runs from the median last frost (Feb 2) and median first frost (Dec 2) 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 10Jan 5Apr 25110 from transplant
Mustard greensGarnet Giant (Brassica juncea)Direct sowFeb 2Mar 430 from sow
CilantroSlow Bolt (Coriandrum sativum)Jan 19Jan 19Mar 545 from sow
Genovese BasilGenoveseJan 5Feb 16Apr 1760 from transplant
CayenneLong Slim Cayenne (Capsicum annuum)Dec 8Feb 9Apr 2575 from transplant
HabaneroOrange Habanero (Capsicum chinense)Nov 24Feb 16May 2295 from transplant
JalapeñoEarly Jalapeño (Capsicum annuum)Dec 8Feb 9Apr 2575 from transplant
Marconi Red PepperMarconi Red (Capsicum annuum)Dec 8Feb 9Apr 3080 from transplant
SerranoSerrano Tampiqueño (Capsicum annuum)Dec 8Feb 9Apr 3080 from transplant
Nantes CarrotScarlet NantesJan 19Jan 19Mar 3070 from sow
TomatilloToma VerdeDec 22Feb 9Apr 2070 from transplant
Roma TomatoRoma VF (determinate paste)Dec 22Feb 9Apr 2575 from transplant
San Marzano TomatoSan Marzano (indeterminate paste)Dec 22Feb 9Apr 3080 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.

West Sacramento frost questions

When is the last frost in West Sacramento, CA?

The median last 32 °F freeze at SACRAMENTO EXECUTIVE AP, CA is February 2: half of years see a later one. One year in ten, a freeze still comes after March 5; nine years in ten, it comes after January 2. Source: NOAA NCEI 1991–2020 U.S. Climate Normals.

When is the first frost in West Sacramento, CA?

The median first 32 °F freeze of fall is December 2. One year in ten it arrives before November 16; nine years in ten, before January 2 (next year).

How long is the growing season in West Sacramento, CA?

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 266 days; one year in ten, at least 338 days.

What growing zone is West Sacramento, CA?

USDA hardiness zone 9b, per the 2023 USDA Plant Hardiness Zone Map for ZIP 95605. 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 West Sacramento, CA?

Start Roma VF (determinate paste) seeds indoors around Dec 22 and transplant around Feb 9, 1 week after the median last frost. To cut the freeze risk to one year in ten, wait for Mar 5. First ripe fruit lands around Apr 25.

When should I plant peppers in West Sacramento, CA?

Sow jalapeño indoors on a heat mat around Dec 8; transplant no earlier than Feb 9, and wait past it until nights hold above 50 °F — that can run weeks later. First green pods around Apr 25.

Nearby in California

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