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

Planting zone for 11949 — Manorville, NY

ZIP code 11949 (Manorville, Suffolk County) is in USDA zone 7a: the coldest winter night averages 0 to 5 °F. The median last spring frost is April 21 and the first fall frost October 24.

Where ZIP 11949 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.

Zone7a0 to 5 °F
Coldest night−17.8 to −15 °C
Last frostApr 21
First frostOct 24
2012 zone7a

Same zone as on the 2012 map. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 7a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Manorville, 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 Manorville, NY

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 21median — 50% chance of a later frost
Safe for tender plantsMay 6only 10% chance of frost after
First fall frostOctober 24median — 10% chance by Oct 9
Growing season184 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 7 and returns around November 3.

From the NOAA station Upton Coop - Nwsfo New York, NY — 3 miles away, elevation 79 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 11949

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 10 – Mar 24
SpinachSow outdoors · Mar 10 – Mar 31
Broccoli, cabbageStart indoors · Feb 10 – Feb 24
Broccoli, cabbageTransplant · Mar 31 – Apr 14
Onion setsPlant outdoors · Mar 24 – Apr 7
PotatoesPlant outdoors · Mar 31 – Apr 14
LettuceSow outdoors · Mar 24 – Apr 7
Carrots, beetsSow outdoors · Mar 31 – Apr 14
TomatoesStart indoors · Feb 24 – Mar 10
TomatoesTransplant · Apr 28 – May 12
Peppers, eggplantStart indoors · Feb 10 – Feb 24
Peppers, eggplantTransplant · May 5 – May 19
BeansSow outdoors · Apr 28 – May 12
Sweet cornSow outdoors · Apr 28 – May 12
Cucumbers, squashSow outdoors · Apr 28 – May 12
Fall lettuce, spinachSow outdoors · Aug 29 – Sep 12
GarlicPlant cloves · Oct 10 – Nov 14
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 21) and first fall frost (Oct 24) 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 11949 came on Apr 2 — about the same time as the 1991–2020 average (Mar 31).

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 7a in New York

656 plants native to the lower 48 states, recorded in New York, and rated by the USDA to survive 0 °F or colder — the bottom of zone 7a. 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 221

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 200

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 Manorville, NY.

Soil in Manorville, NY

The soil mapped at the center of ZIP 11949 is Plymouth — slightly decomposed plant material, excessively drained.

TextureSlightly decomposed plant materialtop layer
DrainageExcessively drainednatural drainage class
Organic matter80%high
Hydrologic groupAwater soaks in fast
Farmland classFarmland of statewide importanceUSDA classification

Map unit: Plymouth loamy coarse sand, 0 to 3 percent slopes.

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 11949; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Manorville, NY

Summer high82 °Faverage high, July
Winter low21 °Faverage low, January
Hot days5days a year at 90 °F or more
Freezing nights118nights a year at 32 °F or less
Growing degree days2,876base 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)
Precipitation50 inper year, rain and melted snow

Average high and low, by month

10°20°30°40°50°60°70°80°90°32 °FJanuary: average high 38 °F, low 21 °F 38°21° JanFebruary: average high 40 °F, low 22 °F 40°22° FebMarch: average high 47 °F, low 29 °F 47°29° MarApril: average high 58 °F, low 38 °F 58°38° AprMay: average high 68 °F, low 48 °F 68°48° MayJune: average high 76 °F, low 58 °F 76°58° JunJuly: average high 82 °F, low 65 °F 82°65° JulAugust: average high 81 °F, low 63 °F 81°63° AugSeptember: average high 74 °F, low 56 °F 74°56° SepOctober: average high 63 °F, low 44 °F 63°44° OctNovember: average high 53 °F, low 34 °F 53°34° NovDecember: average high 44 °F, low 27 °F 44°27° Dec

Precipitation by month inches

0″1″2″3″4″5″January: 4.04 in precipitation 4.0 JanFebruary: 3.86 in precipitation 3.9 FebMarch: 4.94 in precipitation 4.9 MarApril: 4.19 in precipitation 4.2 AprMay: 3.65 in precipitation 3.6 MayJune: 3.94 in precipitation 3.9 JunJuly: 3.71 in precipitation 3.7 JulAugust: 4.52 in precipitation 4.5 AugSeptember: 4.20 in precipitation 4.2 SepOctober: 4.30 in precipitation 4.3 OctNovember: 3.76 in precipitation 3.8 NovDecember: 4.86 in precipitation 4.9 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Upton Coop - Nwsfo New York, NY (3 mi away); precipitation: Upton Coop - Nwsfo New York, NY (3 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 7a.

119557a
Moriches, NY · 4 mi
119737a
Upton, NY · 4 mi
119347a
Center Moriches, NY · 4 mi
119407a
East Moriches, NY · 5 mi
119507a
Mastic, NY · 5 mi
119417a
Eastport, NY · 5 mi
119617a
Ridge, NY · 5 mi
119337a
Calverton, NY · 6 mi

New York planting zones →

Questions about 11949

What planting zone is ZIP code 11949?

ZIP code 11949 (Manorville, NY) is in USDA hardiness zone 7a on the 2023 map: the coldest night of an average winter reaches 0 to 5 °F (−17.8 to −15 °C).

When is the last frost in Manorville, NY?

The median last spring frost (32 °F) near 11949 is April 21; after May 6 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Upton Coop - Nwsfo New York station.

When is the first frost in Manorville, NY?

The median first fall frost near 11949 is October 24, giving a median frost-free growing season of 184 days.

When should I plant tomatoes in 11949?

Start tomato seeds indoors around Feb 24 – Mar 10 and set transplants outside around Apr 28 – May 12, one to three weeks after the median last frost.

How much rain and snow does 11949 get?

About 50 inches of precipitation a year (NOAA 1991–2020 normals, Upton Coop - Nwsfo New York station).

How hot do summers get in Manorville, NY?

The average high peaks at 82 °F in July, with about 5 days a year at 90 °F or more.

What kind of soil does 11949 have?

The USDA soil survey maps Plymouth at the center of ZIP 11949: slightly decomposed plant material, excessively drained.

Did spring come early in Manorville, NY in 2026?

Spring leaf-out near 11949 came on Apr 2 in 2026, about the same as the 1991–2020 average (Mar 31), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Manorville, NY?

Long-day onions: the longest day near 11949 is 15 h 07 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).