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

Planting zone for 18443 — Milanville, PA

ZIP code 18443 (Milanville, Wayne County) is in USDA zone 6a: the coldest winter night averages −10 to −5 °F. The median last spring frost is May 3 and the first fall frost October 9.

Where ZIP 18443 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.

Zone6a−10 to −5 °F
Coldest night−23.3 to −20.6 °C
Last frostMay 3
First frostOct 9
2012 zone5b

Was 5b 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 6a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Milanville, 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 Milanville, PA

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMay 3median — 50% chance of a later frost
Safe for tender plantsMay 21only 10% chance of frost after
First fall frostOctober 9median — 10% chance by Sep 27
Growing season156 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 20 and returns around October 23.

From the NOAA station Milanville, PA — 2 miles away, elevation 761 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 18443

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 22 – Apr 5
SpinachSow outdoors · Mar 22 – Apr 12
Broccoli, cabbageStart indoors · Feb 22 – Mar 8
Broccoli, cabbageTransplant · Apr 12 – Apr 26
Onion setsPlant outdoors · Apr 5 – Apr 19
PotatoesPlant outdoors · Apr 12 – Apr 26
LettuceSow outdoors · Apr 5 – Apr 19
Carrots, beetsSow outdoors · Apr 12 – Apr 26
TomatoesStart indoors · Mar 8 – Mar 22
TomatoesTransplant · May 10 – May 24
Peppers, eggplantStart indoors · Feb 22 – Mar 8
Peppers, eggplantTransplant · May 17 – May 31
BeansSow outdoors · May 10 – May 24
Sweet cornSow outdoors · May 10 – May 24
Cucumbers, squashSow outdoors · May 10 – May 24
Fall lettuce, spinachSow outdoors · Aug 14 – Aug 28
GarlicPlant cloves · Sep 25 – Oct 30
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (May 3) and first fall frost (Oct 9) 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 18443 came on Apr 3 — 10 days earlier than the 1991–2020 average (Apr 13).

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 6a in Pennsylvania

598 plants native to the lower 48 states, recorded in Pennsylvania, and rated by the USDA to survive −10 °F or colder — the bottom of zone 6a. Each links to its USDA PLANTS profile.

Trees 76

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 121

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 207

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 170

American beachgrass2.5 ft · blooms spring · high shade tolerance · to −28 °Farctic brome3 ft · blooms early summer · low shade tolerance · to −33 °Fawlfruit sedge4 ft · blooms mid spring · low shade tolerance · to −38 °FBailey's sedge2.1 ft · blooms late spring · low shade tolerance · to −33 °Fbeaked spikerush3 ft · blooms late spring · high shade tolerance · to −28 °FBebb's sedge3 ft · blooms late spring · low shade tolerance · to −38 °F

Vines 9

American bittersweet15 ft · blooms spring · low shade tolerance · to −38 °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 °Ftrumpet creeper2 ft · blooms summer · high shade tolerance · to −13 °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 Milanville, PA.

Soil in Milanville, PA

The soil mapped at the center of ZIP 18443 is Oquaga — channery loam, well drained.

TextureChannery 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 classFarmland of statewide importanceUSDA classification

Map unit: Oquaga channery 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 18443; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Milanville, PA

Summer high82 °Faverage high, July
Winter low15 °Faverage low, January
Hot days8days a year at 90 °F or more
Freezing nights152nights a year at 32 °F or less
Growing degree days2,484base 50 °F — the season’s usable heat
Longest day15 h 12 mindaylight on June 21
Shortest day9 h 09 mindaylight on December 21
Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)
Precipitation46.9 inper year, rain and melted snow

Average high and low, by month

0°10°20°30°40°50°60°70°80°90°32 °FJanuary: average high 33 °F, low 15 °F 33°15° JanFebruary: average high 37 °F, low 17 °F 37°17° FebMarch: average high 46 °F, low 24 °F 46°24° MarApril: average high 59 °F, low 35 °F 59°35° AprMay: average high 71 °F, low 45 °F 71°45° MayJune: average high 78 °F, low 54 °F 78°54° JunJuly: average high 82 °F, low 59 °F 82°59° JulAugust: average high 80 °F, low 57 °F 80°57° AugSeptember: average high 74 °F, low 49 °F 74°49° SepOctober: average high 62 °F, low 39 °F 62°39° OctNovember: average high 49 °F, low 29 °F 49°29° NovDecember: average high 38 °F, low 21 °F 38°21° Dec

Precipitation by month inches

0″1″2″3″4″5″6″January: 3.70 in precipitation 3.7 JanFebruary: 2.91 in precipitation 2.9 FebMarch: 3.74 in precipitation 3.7 MarApril: 3.54 in precipitation 3.5 AprMay: 3.76 in precipitation 3.8 MayJune: 5.01 in precipitation 5.0 JunJuly: 4.37 in precipitation 4.4 JulAugust: 4.69 in precipitation 4.7 AugSeptember: 4.82 in precipitation 4.8 SepOctober: 3.56 in precipitation 3.6 OctNovember: 2.97 in precipitation 3.0 NovDecember: 3.86 in precipitation 3.9 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Milanville, PA (2 mi away); precipitation: Damascus - 9, PA (within 1 mile). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 6a.

184696a
Tyler Hill, PA · 4 mi
184056a
Beach Lake, PA · 4 mi
127526a
Lake Huntington, NY · 6 mi
127276a
Cochecton Center, NY · 6 mi
184156a
Damascus, PA · 6 mi
127266a
Cochecton, NY · 7 mi
127646a
Narrowsburg, NY · 7 mi
127236a
Callicoon, NY · 9 mi

Pennsylvania planting zones →

Questions about 18443

What planting zone is ZIP code 18443?

ZIP code 18443 (Milanville, PA) is in USDA hardiness zone 6a on the 2023 map: the coldest night of an average winter reaches −10 to −5 °F (−23.3 to −20.6 °C).

When is the last frost in Milanville, PA?

The median last spring frost (32 °F) near 18443 is May 3; after May 21 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Milanville station.

When is the first frost in Milanville, PA?

The median first fall frost near 18443 is October 9, giving a median frost-free growing season of 156 days.

When should I plant tomatoes in 18443?

Start tomato seeds indoors around Mar 8 – Mar 22 and set transplants outside around May 10 – May 24, one to three weeks after the median last frost.

How much rain and snow does 18443 get?

About 46.9 inches of precipitation a year (NOAA 1991–2020 normals, Damascus - 9 station).

How hot do summers get in Milanville, PA?

The average high peaks at 82 °F in July, with about 8 days a year at 90 °F or more.

What kind of soil does 18443 have?

The USDA soil survey maps Oquaga at the center of ZIP 18443: channery loam, well drained, pH about 5.5 (moderately acidic).

Did spring come early in Milanville, PA in 2026?

Spring leaf-out near 18443 came on Apr 3 in 2026, 10 days earlier than the 1991–2020 average (Apr 13), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Milanville, PA?

Long-day onions: the longest day near 18443 is 15 h 12 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).

Did the zone for 18443 change?

Yes. The 2012 USDA map put 18443 in zone 5b; the 2023 map puts it in zone 6a. The newer map uses 1991–2020 data and more weather stations.