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

Planting zone for 15473 — Perryopolis, PA

ZIP code 15473 (Perryopolis, Fayette County) is in USDA zone 6b: the coldest winter night averages −5 to 0 °F. The median last spring frost is April 27 and the first fall frost October 22.

Where ZIP 15473 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 frostApr 27
First frostOct 22
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 Perryopolis, 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 Perryopolis, PA

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 27median — 50% chance of a later frost
Safe for tender plantsMay 15only 10% chance of frost after
First fall frostOctober 22median — 10% chance by Oct 8
Growing season177 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 14 and returns around November 1.

From the NOAA station Donora 1 Sw, 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 15473

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 16 – Mar 30
SpinachSow outdoors · Mar 16 – Apr 6
Broccoli, cabbageStart indoors · Feb 16 – Mar 2
Broccoli, cabbageTransplant · Apr 6 – Apr 20
Onion setsPlant outdoors · Mar 30 – Apr 13
PotatoesPlant outdoors · Apr 6 – Apr 20
LettuceSow outdoors · Mar 30 – Apr 13
Carrots, beetsSow outdoors · Apr 6 – Apr 20
TomatoesStart indoors · Mar 2 – Mar 16
TomatoesTransplant · May 4 – May 18
Peppers, eggplantStart indoors · Feb 16 – Mar 2
Peppers, eggplantTransplant · May 11 – May 25
BeansSow outdoors · May 4 – May 18
Sweet cornSow outdoors · May 4 – May 18
Cucumbers, squashSow outdoors · May 4 – May 18
Fall lettuce, spinachSow outdoors · Aug 27 – Sep 10
GarlicPlant cloves · Oct 8 – Nov 12
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 27) and first fall frost (Oct 22) 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 15473 came on Mar 10 — 15 days earlier than the 1991–2020 average (Mar 25).

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 6b in Pennsylvania

605 plants native to the lower 48 states, recorded in Pennsylvania, and rated by the USDA to survive −5 °F or colder — the bottom of zone 6b. 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 122

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 209

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 173

American 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 °Fautumn bluegrass1.5 ft · blooms late spring · medium 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 10

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 °Fgraybark grape50 ft · blooms late spring · medium shade tolerance · to −8 °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 Perryopolis, PA.

Soil in Perryopolis, PA

The soil mapped at the center of ZIP 15473 is Dormont — silt loam, moderately well drained.

TextureSilt loama good balance for most vegetables
pH6.2slightly acidic; most vegetables like 6.0–7.0
DrainageModerately well drainednatural drainage class
Organic matter2.6%moderate
Hydrologic groupDwater soaks in very slowly
Farmland classNot prime farmlandUSDA classification

Map unit: Dormont-Culleoka complex, 25 to 50 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 15473; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Perryopolis, PA

Summer high84 °Faverage high, July
Winter low21 °Faverage low, January
Hot days15days a year at 90 °F or more
Freezing nights116nights a year at 32 °F or less
Growing degree days3,212base 50 °F — the season’s usable heat
Longest day15 h 01 mindaylight on June 21
Shortest day9 h 19 mindaylight on December 21
Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)
Precipitation40.9 inper year, rain and melted snow
Snowfall21 inper year; 24 days with snow on the ground

Average high and low, by month

10°20°30°40°50°60°70°80°90°32 °FJanuary: average high 39 °F, low 21 °F 39°21° JanFebruary: average high 42 °F, low 22 °F 42°22° FebMarch: average high 51 °F, low 29 °F 51°29° MarApril: average high 64 °F, low 38 °F 64°38° AprMay: average high 73 °F, low 49 °F 73°49° MayJune: average high 81 °F, low 58 °F 81°58° JunJuly: average high 84 °F, low 62 °F 84°62° JulAugust: average high 84 °F, low 61 °F 84°61° AugSeptember: average high 78 °F, low 54 °F 78°54° SepOctober: average high 66 °F, low 42 °F 66°42° OctNovember: average high 54 °F, low 33 °F 54°33° NovDecember: average high 43 °F, low 26 °F 43°26° Dec

Precipitation by month inches · ❄ = snowfall

0″1″2″3″4″5″January: 2.90 in precipitation, 5.7 in snowfall 2.9❄6 JanFebruary: 2.43 in precipitation, 7.2 in snowfall 2.4❄7 FebMarch: 3.14 in precipitation, 4.6 in snowfall 3.1❄5 MarApril: 3.40 in precipitation, 0.1 in snowfall 3.4 AprMay: 4.30 in precipitation 4.3 MayJune: 4.39 in precipitation 4.4 JunJuly: 4.31 in precipitation 4.3 JulAugust: 3.64 in precipitation 3.6 AugSeptember: 3.55 in precipitation 3.5 SepOctober: 3.05 in precipitation 3.0 OctNovember: 2.84 in precipitation, 0.5 in snowfall 2.8❄1 NovDecember: 2.90 in precipitation, 3.3 in snowfall 2.9❄3 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Donora 1 Sw, PA (8 mi away); precipitation: Donora 1 Sw, PA (8 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 6b.

154826b
Star Junction, PA · <1 mi
154926b
Wickhaven, PA · 3 mi
154836b
Stockdale, PA · 4 mi
154866b
Vanderbilt, PA · 5 mi
154286b
Dawson, PA · 5 mi
154486b
Jacobs Creek, PA · 5 mi
154386b
Fayette City, PA · 5 mi
154126b
Allenport, PA · 5 mi

Pennsylvania planting zones →

Questions about 15473

What planting zone is ZIP code 15473?

ZIP code 15473 (Perryopolis, 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 Perryopolis, PA?

The median last spring frost (32 °F) near 15473 is April 27; after May 15 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Donora 1 Sw station.

When is the first frost in Perryopolis, PA?

The median first fall frost near 15473 is October 22, giving a median frost-free growing season of 177 days.

When should I plant tomatoes in 15473?

Start tomato seeds indoors around Mar 2 – Mar 16 and set transplants outside around May 4 – May 18, one to three weeks after the median last frost.

How much rain and snow does 15473 get?

About 40.9 inches of precipitation a year and 21 inches of snowfall (NOAA 1991–2020 normals, Donora 1 Sw station).

How hot do summers get in Perryopolis, PA?

The average high peaks at 84 °F in July, with about 15 days a year at 90 °F or more.

What kind of soil does 15473 have?

The USDA soil survey maps Dormont at the center of ZIP 15473: silt loam, moderately well drained, pH about 6.2 (slightly acidic).

Did spring come early in Perryopolis, PA in 2026?

Spring leaf-out near 15473 came on Mar 10 in 2026, 15 days earlier than the 1991–2020 average (Mar 25), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Perryopolis, PA?

Long-day onions: the longest day near 15473 is 15 h 01 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).

Did the zone for 15473 change?

Yes. The 2012 USDA map put 15473 in zone 6a; the 2023 map puts it in zone 6b. The newer map uses 1991–2020 data and more weather stations.