Frost dates · USDA zone 7b

Frost dates for Yonkers, NY

Yonkers, NY sees its last 32 °F night of spring around April 20 and its first of fall around October 26 — a 189-day freeze-free season in a typical year.

Apr 20Last spring frostmedian · 1 in 10 years after May 6
Oct 26First fall frostmedian · 1 in 10 years before Oct 10
189Freeze-free daysmedian year · ≥168 in 9 of 10
7bUSDA zone2023 map · ZIP 10701
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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 10Apr 4Nov 10
Median — 1 year in 2Apr 20Oct 26
1 year in 10May 6Oct 10

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: 189 days median, at least 168 in 9 years of 10, at least 210 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 Apr 4 and first of Nov 7.

Yonkers planting calendar, 2027

Every row runs from the median last frost (Apr 20) and median first frost (Oct 26) 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 26Mar 23Jul 11110 from transplant
Mustard greensGarnet Giant (Brassica juncea)Direct sowApr 20May 2030 from sow
CilantroSlow Bolt (Coriandrum sativum)Apr 6Apr 6May 2145 from sow
Genovese BasilGenoveseMar 23May 4Jul 360 from transplant
CayenneLong Slim Cayenne (Capsicum annuum)Feb 23Apr 27Jul 1175 from transplant
HabaneroOrange Habanero (Capsicum chinense)Feb 9May 4Aug 795 from transplant
JalapeñoEarly Jalapeño (Capsicum annuum)Feb 23Apr 27Jul 1175 from transplant
Marconi Red PepperMarconi Red (Capsicum annuum)Feb 23Apr 27Jul 1680 from transplant
SerranoSerrano Tampiqueño (Capsicum annuum)Feb 23Apr 27Jul 1680 from transplant
Nantes CarrotScarlet NantesApr 6Apr 6Jun 1570 from sow
TomatilloToma VerdeMar 9Apr 27Jul 670 from transplant
Roma TomatoRoma VF (determinate paste)Mar 9Apr 27Jul 1175 from transplant
San Marzano TomatoSan Marzano (indeterminate paste)Mar 9Apr 27Jul 1680 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.

Yonkers frost questions

When is the last frost in Yonkers, NY?

The median last 32 °F freeze at DOBBS FERRY-ARDSLEY, NY is April 20: half of years see a later one. One year in ten, a freeze still comes after May 6; nine years in ten, it comes after April 4. Source: NOAA NCEI 1991–2020 U.S. Climate Normals.

When is the first frost in Yonkers, NY?

The median first 32 °F freeze of fall is October 26. One year in ten it arrives before October 10; nine years in ten, before November 10.

How long is the growing season in Yonkers, NY?

189 days between the last spring and first fall 32 °F freeze in a median year. Nine years in ten the season runs at least 168 days; one year in ten, at least 210 days.

What growing zone is Yonkers, NY?

USDA hardiness zone 7b, per the 2023 USDA Plant Hardiness Zone Map for ZIP 10701. 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 Yonkers, NY?

Start Roma VF (determinate paste) seeds indoors around Mar 9 and transplant around Apr 27, 1 week after the median last frost. To cut the freeze risk to one year in ten, wait for May 6. First ripe fruit lands around Jul 11.

When should I plant peppers in Yonkers, NY?

Sow jalapeño indoors on a heat mat around Feb 23; transplant no earlier than Apr 27, and wait past it until nights hold above 50 °F — that can run weeks later. First green pods around Jul 11.

Nearby in New York

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