Frost dates · USDA zone 9b

Frost dates for Fresno, CA

Fresno, CA sees its last 32 °F night of spring around January 14 and its first of fall around December 14 — a 337-day freeze-free season in a typical year.

Jan 14Last spring frostmedian · 1 in 10 years after Feb 11
Dec 14First fall frostmedian · 1 in 10 years before Nov 29
337Freeze-free daysmedian year · ≥305 in 9 of 10
9bUSDA zone2023 map · ZIP 93704
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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 22 (prior winter)Jan 12 (next year)
Median — 1 year in 2Jan 14Dec 14
1 year in 10Feb 11Nov 29

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: 337 days median, at least 305 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 1 and first of Dec 24.

Fresno planting calendar, 2027

Every row runs from the median last frost (Jan 14) and median first frost (Dec 14) 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)Oct 22Dec 17Apr 6110 from transplant
Mustard greensGarnet Giant (Brassica juncea)Direct sowJan 14Feb 1330 from sow
CilantroSlow Bolt (Coriandrum sativum)Dec 31Dec 31Feb 1445 from sow
Genovese BasilGenoveseDec 17Jan 28Mar 2960 from transplant
CayenneLong Slim Cayenne (Capsicum annuum)Nov 19Jan 21Apr 675 from transplant
HabaneroOrange Habanero (Capsicum chinense)Nov 5Jan 28May 395 from transplant
JalapeñoEarly Jalapeño (Capsicum annuum)Nov 19Jan 21Apr 675 from transplant
Marconi Red PepperMarconi Red (Capsicum annuum)Nov 19Jan 21Apr 1180 from transplant
SerranoSerrano Tampiqueño (Capsicum annuum)Nov 19Jan 21Apr 1180 from transplant
Nantes CarrotScarlet NantesDec 31Dec 31Mar 1170 from sow
TomatilloToma VerdeDec 3Jan 21Apr 170 from transplant
Roma TomatoRoma VF (determinate paste)Dec 3Jan 21Apr 675 from transplant
San Marzano TomatoSan Marzano (indeterminate paste)Dec 3Jan 21Apr 1180 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.

Fresno frost questions

When is the last frost in Fresno, CA?

The median last 32 °F freeze at FRESNO YOSEMITE INTL AP, CA is January 14: half of years see a later one. One year in ten, a freeze still comes after February 11; nine years in ten, it comes after December 22 (prior winter). Source: NOAA NCEI 1991–2020 U.S. Climate Normals.

When is the first frost in Fresno, CA?

The median first 32 °F freeze of fall is December 14. One year in ten it arrives before November 29; nine years in ten, before January 12 (next year).

How long is the growing season in Fresno, CA?

337 days between the last spring and first fall 32 °F freeze in a median year. Nine years in ten the season runs at least 305 days; one year in ten, no freeze at all.

What growing zone is Fresno, CA?

USDA hardiness zone 9b, per the 2023 USDA Plant Hardiness Zone Map for ZIP 93704. 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 Fresno, CA?

Start Roma VF (determinate paste) seeds indoors around Dec 3 and transplant around Jan 21, 1 week after the median last frost. To cut the freeze risk to one year in ten, wait for Feb 11. First ripe fruit lands around Apr 6.

When should I plant peppers in Fresno, CA?

Sow jalapeño indoors on a heat mat around Nov 19; transplant no earlier than Jan 21, and wait past it until nights hold above 50 °F — that can run weeks later. First green pods around Apr 6.

Nearby in California

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