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

Planting zone for 18832 — Monroeton, PA

ZIP code 18832 (Monroeton, Bradford County) is in USDA zone 6a: the coldest winter night averages −10 to −5 °F. The median last spring frost is May 2 and the first fall frost October 15.

Where ZIP 18832 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 2

First frostOct 15

2012 zone6a

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 6a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Monroeton, 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 Monroeton, PA

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostMay 2median — 50% chance of a later frost

Safe for tender plantsMay 16only 10% chance of frost after

First fall frostOctober 15median — 10% chance by Oct 1

Growing season165 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 21 and returns around October 30.

From the NOAA station Towanda 1 S, PA — 8 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 18832

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Mar 21 – Apr 4

SpinachSow outdoors · Mar 21 – Apr 11

Broccoli, cabbageStart indoors · Feb 21 – Mar 7

Broccoli, cabbageTransplant · Apr 11 – Apr 25

Onion setsPlant outdoors · Apr 4 – Apr 18

PotatoesPlant outdoors · Apr 11 – Apr 25

LettuceSow outdoors · Apr 4 – Apr 18

Carrots, beetsSow outdoors · Apr 11 – Apr 25

TomatoesStart indoors · Mar 7 – Mar 21

TomatoesTransplant · May 9 – May 23

Peppers, eggplantStart indoors · Feb 21 – Mar 7

Peppers, eggplantTransplant · May 16 – May 30

BeansSow outdoors · May 9 – May 23

Sweet cornSow outdoors · May 9 – May 23

Cucumbers, squashSow outdoors · May 9 – May 23

Fall lettuce, spinachSow outdoors · Aug 20 – Sep 3

GarlicPlant cloves · Oct 1 – Nov 5

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (May 2) and first fall frost (Oct 15) 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 18832 came on Apr 5 — 9 days earlier than the 1991–2020 average (Apr 14).

average
Apr 142026
Apr 5

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.

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 Monroeton, PA.

Soil in Monroeton, PA

The soil mapped at the center of ZIP 18832 is Wellsboro — moderately decomposed plant material, moderately well drained.

TextureModerately decomposed plant materialtop layer

pH4.8strongly acidic; most vegetables like 6.0–7.0

DrainageModerately well drainednatural drainage class

Organic matter80%high

Hydrologic groupDwater soaks in very slowly

Farmland classNot prime farmlandUSDA classification

Map unit: Wellsboro channery silt loam, 3 to 8 percent slopes, extremely stony.

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 18832; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Monroeton, PA

Summer high84 °Faverage high, July

Winter low17 °Faverage low, January

Hot days11days a year at 90 °F or more

Freezing nights143nights a year at 32 °F or less

Growing degree days2,695base 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)

Precipitation38.6 inper year, rain and melted snow

Snowfall38 inper year; 50 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: Towanda 1 S, PA (8 mi away); precipitation: Towanda 1 S, PA (8 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 6a.

169266a

Granville Summit, PA · 7 mi

188146a

Burlington, PA · 7 mi

188486a

Towanda, PA · 8 mi

188336a

New Albany, PA · 8 mi

186166a

Forksville, PA · 12 mi

Pennsylvania planting zones →

Questions about 18832

What planting zone is ZIP code 18832?

ZIP code 18832 (Monroeton, 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 Monroeton, PA?

The median last spring frost (32 °F) near 18832 is May 2; after May 16 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Towanda 1 S station.

When is the first frost in Monroeton, PA?

The median first fall frost near 18832 is October 15, giving a median frost-free growing season of 165 days.

When should I plant tomatoes in 18832?

Start tomato seeds indoors around Mar 7 – Mar 21 and set transplants outside around May 9 – May 23, one to three weeks after the median last frost.

How much rain and snow does 18832 get?

About 38.6 inches of precipitation a year and 38 inches of snowfall (NOAA 1991–2020 normals, Towanda 1 S station).

How hot do summers get in Monroeton, PA?

The average high peaks at 84 °F in July, with about 11 days a year at 90 °F or more.

What kind of soil does 18832 have?

The USDA soil survey maps Wellsboro at the center of ZIP 18832: moderately decomposed plant material, moderately well drained, pH about 4.8 (strongly acidic).

Did spring come early in Monroeton, PA in 2026?

Spring leaf-out near 18832 came on Apr 5 in 2026, 9 days earlier than the 1991–2020 average (Apr 14), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Monroeton, PA?

Long-day onions: the longest day near 18832 is 15 h 12 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).