Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated Oct 29, 2026

Planting zone for 13403 — Marcy, NY

ZIP code 13403 (Marcy, Oneida County) is in USDA zone 5b: the coldest winter night averages −15 to −10 °F. The median last spring frost is May 1 and the first fall frost October 13.

Where ZIP 13403 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.

Zone5b−15 to −10 °F

Coldest night−26.1 to −23.3 °C

Last frostMay 1

First frostOct 13

2012 zone5a

Was 5a 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 5b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Marcy, 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 Marcy, NY

JanFebMarAprMayJunJulAugSepOctNovDec

Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free

Last spring frostMay 1median — 50% chance of a later frost

Safe for tender plantsMay 17only 10% chance of frost after

First fall frostOctober 13median — 10% chance by Sep 29

Growing season164 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 20 and returns around October 27.

From the NOAA station Utica Oneida Co. Airport, NY — 6 miles away, elevation 712 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 13403

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Mar 20 – Apr 3

SpinachSow outdoors · Mar 20 – Apr 10

Broccoli, cabbageStart indoors · Feb 20 – Mar 6

Broccoli, cabbageTransplant · Apr 10 – Apr 24

Onion setsPlant outdoors · Apr 3 – Apr 17

PotatoesPlant outdoors · Apr 10 – Apr 24

LettuceSow outdoors · Apr 3 – Apr 17

Carrots, beetsSow outdoors · Apr 10 – Apr 24

TomatoesStart indoors · Mar 6 – Mar 20

TomatoesTransplant · May 8 – May 22

Peppers, eggplantStart indoors · Feb 20 – Mar 6

Peppers, eggplantTransplant · May 15 – May 29

BeansSow outdoors · May 8 – May 22

Sweet cornSow outdoors · May 8 – May 22

Cucumbers, squashSow outdoors · May 8 – May 22

Fall lettuce, spinachSow outdoors · Aug 18 – Sep 1

GarlicPlant cloves · Sep 29 – Nov 3

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (May 1) and first fall frost (Oct 13) 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 13403 came on Apr 9 — 8 days earlier than the 1991–2020 average (Apr 17).

average
Apr 172026
Apr 9

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).

Soil in Marcy, NY

The soil mapped at the center of ZIP 13403 is Kendaia — silt loam, somewhat poorly drained.

TextureSilt loama good balance for most vegetables

pH6.3slightly acidic; most vegetables like 6.0–7.0

DrainageSomewhat poorly drainedconsider raised beds

Organic matter5%high

Hydrologic groupB/Dmoderate when drained; wet otherwise

Farmland classPrime farmland if drainedUSDA classification

Map unit: Kendaia silt loam, 3 to 8 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 13403; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Marcy, NY

Summer high81 °Faverage high, July

Winter low14 °Faverage low, January

Hot days5days a year at 90 °F or more

Freezing nights140nights a year at 32 °F or less

Growing degree days2,414base 50 °F — the season’s usable heat

Longest day15 h 23 mindaylight on June 21

Shortest day8 h 59 mindaylight on December 21

Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)

Precipitation51.8 inper year, rain and melted snow

Average high and low, by month

Precipitation by month inches

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Utica Oneida Co. Airport, NY (6 mi away); precipitation: Holland Patent 1.5 Wsw, NY (5 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 5b.

134955b

Yorkville, NY · 4 mi

134695b

Stittville, NY · 4 mi

134175b

New York Mills, NY · 5 mi

New York planting zones →

Questions about 13403

What planting zone is ZIP code 13403?

ZIP code 13403 (Marcy, NY) is in USDA hardiness zone 5b on the 2023 map: the coldest night of an average winter reaches −15 to −10 °F (−26.1 to −23.3 °C).

When is the last frost in Marcy, NY?

The median last spring frost (32 °F) near 13403 is May 1; after May 17 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Utica Oneida Co. Airport station.

When is the first frost in Marcy, NY?

The median first fall frost near 13403 is October 13, giving a median frost-free growing season of 164 days.

When should I plant tomatoes in 13403?

Start tomato seeds indoors around Mar 6 – Mar 20 and set transplants outside around May 8 – May 22, one to three weeks after the median last frost.

How much rain and snow does 13403 get?

About 51.8 inches of precipitation a year (NOAA 1991–2020 normals, Holland Patent 1.5 Wsw station).

How hot do summers get in Marcy, NY?

The average high peaks at 81 °F in July, with about 5 days a year at 90 °F or more.

What kind of soil does 13403 have?

The USDA soil survey maps Kendaia at the center of ZIP 13403: silt loam, somewhat poorly drained, pH about 6.3 (slightly acidic).

Did spring come early in Marcy, NY in 2026?

Spring leaf-out near 13403 came on Apr 9 in 2026, 8 days earlier than the 1991–2020 average (Apr 17), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Marcy, NY?

Long-day onions: the longest day near 13403 is 15 h 23 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).

Did the zone for 13403 change?

Yes. The 2012 USDA map put 13403 in zone 5a; the 2023 map puts it in zone 5b. The newer map uses 1991–2020 data and more weather stations.