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

Planting zone for 18335 — Marshalls Creek, PA

ZIP code 18335 (Marshalls Creek, Monroe County) is in USDA zone 6b: the coldest winter night averages −5 to 0 °F. The median last spring frost is May 1 and the first fall frost October 12.

Where ZIP 18335 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.

Zone6b−5 to 0 °F

Coldest night−20.6 to −17.8 °C

Last frostMay 1

First frostOct 12

2012 zone6a

Was 6a 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 6b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Marshalls Creek, PA…

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 Marshalls Creek, PA

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 18only 10% chance of frost after

First fall frostOctober 12median — 10% chance by Oct 1

Growing season163 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 19 and returns around October 23.

From the NOAA station E Stroudsburg, PA — 6 miles away, elevation 472 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 18335

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 17 – Aug 31

GarlicPlant cloves · Sep 28 – Nov 2

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (May 1) and first fall frost (Oct 12) 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 18335 came on Apr 1 — 5 days earlier than the 1991–2020 average (Apr 6).

average
Apr 62026
Apr 1

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 Marshalls Creek, PA

The soil mapped at the center of ZIP 18335 is Lordstown — channery silt loam, well drained.

TextureChannery silt loama good balance for most vegetables

pH5.5moderately acidic; most vegetables like 6.0–7.0

DrainageWell drainednatural drainage class

Organic matter5%high

Hydrologic groupCwater soaks in slowly

Farmland classNot prime farmlandUSDA classification

Map unit: Lordstown channery silt loam, 15 to 25 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 18335; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Marshalls Creek, PA

Summer high84 °Faverage high, July

Winter low19 °Faverage low, January

Hot days17days a year at 90 °F or more

Freezing nights137nights a year at 32 °F or less

Growing degree days2,873base 50 °F — the season’s usable heat

Longest day15 h 08 mindaylight on June 21

Shortest day9 h 13 mindaylight on December 21

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

Precipitation53.5 inper year, rain and melted snow

Snowfall42 inper year; 47 days with snow on the ground

Average high and low, by month

Precipitation by month inches · ❄ = snowfall

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: E Stroudsburg, PA (6 mi away); precipitation: E Stroudsburg, PA (6 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 6b.

183026b

East Stroudsburg, PA · 3 mi

183566b

Shawnee On Delaware, PA · 3 mi

183016b

East Stroudsburg, PA · 4 mi

183416b

Minisink Hills, PA · 4 mi

183276b

Delaware Water Gap, PA · 6 mi

Pennsylvania planting zones →

Questions about 18335

What planting zone is ZIP code 18335?

ZIP code 18335 (Marshalls Creek, PA) is in USDA hardiness zone 6b on the 2023 map: the coldest night of an average winter reaches −5 to 0 °F (−20.6 to −17.8 °C).

When is the last frost in Marshalls Creek, PA?

The median last spring frost (32 °F) near 18335 is May 1; after May 18 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, E Stroudsburg station.

When is the first frost in Marshalls Creek, PA?

The median first fall frost near 18335 is October 12, giving a median frost-free growing season of 163 days.

When should I plant tomatoes in 18335?

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 18335 get?

About 53.5 inches of precipitation a year and 42 inches of snowfall (NOAA 1991–2020 normals, E Stroudsburg station).

How hot do summers get in Marshalls Creek, PA?

The average high peaks at 84 °F in July, with about 17 days a year at 90 °F or more.

What kind of soil does 18335 have?

The USDA soil survey maps Lordstown at the center of ZIP 18335: channery silt loam, well drained, pH about 5.5 (moderately acidic).

Did spring come early in Marshalls Creek, PA in 2026?

Spring leaf-out near 18335 came on Apr 1 in 2026, 5 days earlier than the 1991–2020 average (Apr 6), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Marshalls Creek, PA?

Long-day onions: the longest day near 18335 is 15 h 08 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).

Did the zone for 18335 change?

Yes. The 2012 USDA map put 18335 in zone 6a; the 2023 map puts it in zone 6b. The newer map uses 1991–2020 data and more weather stations.