Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated

Planting zone for 10709 — Eastchester, NY

ZIP code 10709 (Eastchester, Westchester County) is in USDA zone 7b: the coldest winter night averages 5 to 10 °F. The median last spring frost is April 20 and the first fall frost October 26.

Where ZIP 10709 is

Outlined: the ZIP code area · tap the map for the zone at any spot · scroll or pinch to zoom

Not the official USDA Plant Hardiness Zone Map. Zones come from the 2023 USDA hardiness-zone data by the PRISM Group, Oregon State University; we re-mapped and recolored them. The official map is at planthardiness.ars.usda.gov.

Zone7b5 to 10 °F
Coldest night−15 to −12.2 °C
Last frostApr 20
First frostOct 26
2012 zone7a

Was 7a on the 2012 map — half a zone warmer now. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 7b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Eastchester, NY…

Forecast data: National Weather Service (api.weather.gov), public domain. This is not a warning service — for official frost and freeze warnings see weather.gov.

Frost dates in Eastchester, NY

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 20median — 50% chance of a later frost
Safe for tender plantsMay 6only 10% chance of frost after
First fall frostOctober 26median — 10% chance by Oct 10
Growing season189 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 4 and returns around November 7.

From the NOAA station Dobbs Ferry-Ardsley, NY — 4 miles away, elevation 200 ft. NOAA NCEI U.S. Climate Normals 1991–2020, 32 °F threshold. Low spots and valleys can freeze later in spring than the station.

When to plant vegetables in 10709

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 9 – Mar 23
SpinachSow outdoors · Mar 9 – Mar 30
Broccoli, cabbageStart indoors · Feb 9 – Feb 23
Broccoli, cabbageTransplant · Mar 30 – Apr 13
Onion setsPlant outdoors · Mar 23 – Apr 6
PotatoesPlant outdoors · Mar 30 – Apr 13
LettuceSow outdoors · Mar 23 – Apr 6
Carrots, beetsSow outdoors · Mar 30 – Apr 13
TomatoesStart indoors · Feb 23 – Mar 9
TomatoesTransplant · Apr 27 – May 11
Peppers, eggplantStart indoors · Feb 9 – Feb 23
Peppers, eggplantTransplant · May 4 – May 18
BeansSow outdoors · Apr 27 – May 11
Sweet cornSow outdoors · Apr 27 – May 11
Cucumbers, squashSow outdoors · Apr 27 – May 11
Fall lettuce, spinachSow outdoors · Aug 31 – Sep 14
GarlicPlant cloves · Oct 12 – Nov 16
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 20) and first fall frost (Oct 26) with the rules of thumb U.S. extension services publish. Cool-season crops take a light frost; warm-season crops do best once the soil is above about 60 °F.

When spring arrived in 2026

In 2026, spring leaf-out near 10709 came on Apr 1 — 5 days later than the 1991–2020 average (Mar 27).

JanFebMarAprMayJun

The Spring Index marks the day when accumulated warmth is enough for lilac and honeysuckle to leaf out — a widely used signal that the growing season has started. Source: USA National Phenology Network, www.usanpn.org — Spring Indices, first leaf, 2026 (data as of 2026-09-08) and 30-year average 1991–2020 (CC BY 4.0).

Native plants for zone 7b in New York

660 plants native to the lower 48 states, recorded in New York, and rated by the USDA to survive 5 °F or colder — the bottom of zone 7b. Each links to its USDA PLANTS profile.

Trees 78

American basswood100 ft · blooms late spring · low shade tolerance · to −46 °FAmerican beech80 ft · blooms mid spring · low shade tolerance · to −44 °FAmerican chestnut115 ft · blooms early summer · high shade tolerance · to −33 °FAmerican elm120 ft · blooms early spring · medium shade tolerance · to −46 °FAmerican sycamore100 ft · blooms spring · medium shade tolerance · to −34 °Farborvitae50 ft · blooms mid spring · medium shade tolerance · to −33 °F

Shrubs 131

alderleaf buckthorn3 ft · blooms late spring · low shade tolerance · to −33 °FAllegheny serviceberry35 ft · blooms early spring · low shade tolerance · to −38 °Falternateleaf dogwood25 ft · blooms mid spring · low shade tolerance · to −47 °FAmerican black currant3 ft · blooms early spring · to −46 °FAmerican hazelnut10 ft · blooms spring · medium shade tolerance · to −33 °FAmerican holly40 ft · blooms mid spring · low shade tolerance · to −20 °F

Wildflowers & perennials 224

alkali buttercup1 ft · blooms late spring · low shade tolerance · to −38 °FAmerican bur-reed3 ft · blooms indeterminate · medium shade tolerance · to −33 °FAmerican eelgrass1 ft · blooms mid summer · high shade tolerance · to −33 °FAmerican licorice4 ft · blooms late spring · medium shade tolerance · to −38 °FAmerican lotus3 ft · blooms mid summer · high shade tolerance · to −36 °FAmerican pokeweed7 ft · blooms mid summer · low shade tolerance · to −33 °F

Grasses 201

alkali sacaton3 ft · blooms mid summer · high shade tolerance · to −38 °FAmerican beachgrass2.5 ft · blooms spring · high shade tolerance · to −28 °Farctic brome3 ft · blooms early summer · low shade tolerance · to −33 °FAtlantic mannagrass3 ft · blooms summer · low shade tolerance · to −8 °Fawlfruit sedge4 ft · blooms mid spring · low shade tolerance · to −38 °FBailey's sedge2.1 ft · blooms late spring · low shade tolerance · to −33 °F

Vines 9

American bittersweet15 ft · blooms spring · low shade tolerance · to −38 °FAmerican wisteria50 ft · blooms spring · low shade tolerance · to −3 °Fdevil's darning needles15 ft · blooms mid summer · medium shade tolerance · to −38 °Ffrost grape83 ft · blooms late spring · medium shade tolerance · to −23 °Friverbank grape45 ft · blooms late spring · medium shade tolerance · to −33 °Fsummer grape30 ft · blooms late spring · low shade tolerance · to −23 °F

Source: USDA, NRCS. 2026. The PLANTS Database (plants.usda.gov), National Plant Data Team — state distribution, native status and the “Temperature, Minimum” characteristic. Check light, moisture and soil needs before buying; local nurseries and your state native plant society can confirm what thrives in Eastchester, NY.

Soil in Eastchester, NY

The soil mapped at the center of ZIP 10709 is Udorthents — gravelly loam, moderately well drained.

TextureGravelly loama good balance for most vegetables
pH5.9moderately acidic; most vegetables like 6.0–7.0
DrainageModerately well drainednatural drainage class
Organic matter2.5%moderate
Hydrologic groupBwater soaks in moderately
Farmland classNot prime farmlandUSDA classification

Map unit: Udorthents, smoothed.

Soil Survey Staff, Natural Resources Conservation Service, USDA. Soil Survey Geographic (SSURGO) Database, via Soil Data Access, accessed 2026-10-29. The soil at the center point of ZIP 10709; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Eastchester, NY

Summer high86 °Faverage high, July
Winter low23 °Faverage low, January
Hot days19days a year at 90 °F or more
Freezing nights109nights a year at 32 °F or less
Growing degree days3,333base 50 °F — the season’s usable heat
Longest day15 h 07 mindaylight on June 21
Shortest day9 h 14 mindaylight on December 21
Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)
Precipitation51.2 inper year, rain and melted snow
Snowfall33 inper year; 39 days with snow on the ground

Average high and low, by month

10°20°30°40°50°60°70°80°90°100°32 °FJanuary: average high 40 °F, low 23 °F 40°23° JanFebruary: average high 43 °F, low 25 °F 43°25° FebMarch: average high 51 °F, low 31 °F 51°31° MarApril: average high 63 °F, low 40 °F 63°40° AprMay: average high 73 °F, low 50 °F 73°50° MayJune: average high 81 °F, low 59 °F 81°59° JunJuly: average high 86 °F, low 64 °F 86°64° JulAugust: average high 84 °F, low 63 °F 84°63° AugSeptember: average high 77 °F, low 56 °F 77°56° SepOctober: average high 65 °F, low 45 °F 65°45° OctNovember: average high 54 °F, low 36 °F 54°36° NovDecember: average high 45 °F, low 29 °F 45°29° Dec

Precipitation by month inches · ❄ = snowfall

0″1″2″3″4″5″January: 3.87 in precipitation, 9.4 in snowfall 3.9❄9 JanFebruary: 3.30 in precipitation, 10.9 in snowfall 3.3❄11 FebMarch: 4.37 in precipitation, 5.8 in snowfall 4.4❄6 MarApril: 4.26 in precipitation, 0.7 in snowfall 4.3❄1 AprMay: 4.27 in precipitation 4.3 MayJune: 4.58 in precipitation 4.6 JunJuly: 4.53 in precipitation 4.5 JulAugust: 4.44 in precipitation 4.4 AugSeptember: 4.61 in precipitation 4.6 SepOctober: 4.43 in precipitation 4.4 OctNovember: 3.88 in precipitation, 0.3 in snowfall 3.9 NovDecember: 4.70 in precipitation, 5.6 in snowfall 4.7❄6 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Dobbs Ferry-Ardsley, NY (4 mi away); precipitation: Dobbs Ferry-Ardsley, NY (4 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

1 of the 8 nearest ZIP codes are in a different zone — elevation and distance from water change winter lows quickly.

107077b
Tuckahoe, NY · <1 mi
108047b
New Rochelle, NY · 1 mi
107087b
Bronxville, NY · 2 mi
107107b
Yonkers, NY · 2 mi
105527b
Mount Vernon, NY · 2 mi
105837a
Scarsdale, NY · 3 mi
108017b
New Rochelle, NY · 3 mi
105387b
Larchmont, NY · 3 mi

New York planting zones →

Questions about 10709

What planting zone is ZIP code 10709?

ZIP code 10709 (Eastchester, NY) is in USDA hardiness zone 7b on the 2023 map: the coldest night of an average winter reaches 5 to 10 °F (−15 to −12.2 °C).

When is the last frost in Eastchester, NY?

The median last spring frost (32 °F) near 10709 is April 20; after May 6 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Dobbs Ferry-Ardsley station.

When is the first frost in Eastchester, NY?

The median first fall frost near 10709 is October 26, giving a median frost-free growing season of 189 days.

When should I plant tomatoes in 10709?

Start tomato seeds indoors around Feb 23 – Mar 9 and set transplants outside around Apr 27 – May 11, one to three weeks after the median last frost.

How much rain and snow does 10709 get?

About 51.2 inches of precipitation a year and 33 inches of snowfall (NOAA 1991–2020 normals, Dobbs Ferry-Ardsley station).

How hot do summers get in Eastchester, NY?

The average high peaks at 86 °F in July, with about 19 days a year at 90 °F or more.

What kind of soil does 10709 have?

The USDA soil survey maps Udorthents at the center of ZIP 10709: gravelly loam, moderately well drained, pH about 5.9 (moderately acidic).

Did spring come early in Eastchester, NY in 2026?

Spring leaf-out near 10709 came on Apr 1 in 2026, 5 days later than the 1991–2020 average (Mar 27), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Eastchester, NY?

Long-day onions: the longest day near 10709 is 15 h 07 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).

Did the zone for 10709 change?

Yes. The 2012 USDA map put 10709 in zone 7a; the 2023 map puts it in zone 7b. The newer map uses 1991–2020 data and more weather stations.