Frost dates · USDA zone 7b

Frost dates for Passaic, NJ

Passaic, NJ sees its last 32 °F night of spring around April 3 and its first of fall around November 4 — a 215-day freeze-free season in a typical year.

Apr 3Last spring frostmedian · 1 in 10 years after Apr 16
Nov 4First fall frostmedian · 1 in 10 years before Oct 21
215Freeze-free daysmedian year · ≥195 in 9 of 10
7bUSDA zone2023 map · ZIP 07055
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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 10Mar 20Nov 20
Median — 1 year in 2Apr 3Nov 4
1 year in 10Apr 16Oct 21

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: 215 days median, at least 195 in 9 years of 10, at least 233 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 23 and first of Nov 16.

Passaic planting calendar, 2027

Every row runs from the median last frost (Apr 3) and median first frost (Nov 4) 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)Jan 9Mar 6Jun 24110 from transplant
Mustard greensGarnet Giant (Brassica juncea)Direct sowApr 3May 330 from sow
CilantroSlow Bolt (Coriandrum sativum)Mar 20Mar 20May 445 from sow
Genovese BasilGenoveseMar 6Apr 17Jun 1660 from transplant
CayenneLong Slim Cayenne (Capsicum annuum)Feb 6Apr 10Jun 2475 from transplant
HabaneroOrange Habanero (Capsicum chinense)Jan 23Apr 17Jul 2195 from transplant
JalapeñoEarly Jalapeño (Capsicum annuum)Feb 6Apr 10Jun 2475 from transplant
Marconi Red PepperMarconi Red (Capsicum annuum)Feb 6Apr 10Jun 2980 from transplant
SerranoSerrano Tampiqueño (Capsicum annuum)Feb 6Apr 10Jun 2980 from transplant
Nantes CarrotScarlet NantesMar 20Mar 20May 2970 from sow
TomatilloToma VerdeFeb 20Apr 10Jun 1970 from transplant
Roma TomatoRoma VF (determinate paste)Feb 20Apr 10Jun 2475 from transplant
San Marzano TomatoSan Marzano (indeterminate paste)Feb 20Apr 10Jun 2980 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.

Passaic frost questions

When is the last frost in Passaic, NJ?

The median last 32 °F freeze at TETERBORO AP, NJ is April 3: half of years see a later one. One year in ten, a freeze still comes after April 16; nine years in ten, it comes after March 20. Source: NOAA NCEI 1991–2020 U.S. Climate Normals.

When is the first frost in Passaic, NJ?

The median first 32 °F freeze of fall is November 4. One year in ten it arrives before October 21; nine years in ten, before November 20.

How long is the growing season in Passaic, NJ?

215 days between the last spring and first fall 32 °F freeze in a median year. Nine years in ten the season runs at least 195 days; one year in ten, at least 233 days.

What growing zone is Passaic, NJ?

USDA hardiness zone 7b, per the 2023 USDA Plant Hardiness Zone Map for ZIP 07055. 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 Passaic, NJ?

Start Roma VF (determinate paste) seeds indoors around Feb 20 and transplant around Apr 10, 1 week after the median last frost. To cut the freeze risk to one year in ten, wait for Apr 16. First ripe fruit lands around Jun 24.

When should I plant peppers in Passaic, NJ?

Sow jalapeño indoors on a heat mat around Feb 6; transplant no earlier than Apr 10, and wait past it until nights hold above 50 °F — that can run weeks later. First green pods around Jun 24.

Nearby in New Jersey

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