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

Planting zone for Frackville, PA

Frackville, PA is in USDA zone 6b across its 2 ZIP codes. The median last spring frost is April 30 and the first fall frost October 22.

Frackville on the zone map

Outlined: its 1 ZIP code areas · 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
ZIP codes2
Last frostApr 30
First frostOct 22
Growing season175 days

6b 2 ZIPs

Frost forecast — next 7 nights

live from the National Weather Service

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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 Frackville, PA

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 30median — 50% chance of a later frost
Safe for tender plantsMay 18only 10% chance of frost after
First fall frostOctober 22median — 10% chance by Oct 7
Growing season175 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 16 and returns around November 1.

From the NOAA station Mahanoy City 2 N, PA, elevation 1,709 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 Frackville

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 19 – Apr 2
SpinachSow outdoors · Mar 19 – Apr 9
Broccoli, cabbageStart indoors · Feb 19 – Mar 5
Broccoli, cabbageTransplant · Apr 9 – Apr 23
Onion setsPlant outdoors · Apr 2 – Apr 16
PotatoesPlant outdoors · Apr 9 – Apr 23
LettuceSow outdoors · Apr 2 – Apr 16
Carrots, beetsSow outdoors · Apr 9 – Apr 23
TomatoesStart indoors · Mar 5 – Mar 19
TomatoesTransplant · May 7 – May 21
Peppers, eggplantStart indoors · Feb 19 – Mar 5
Peppers, eggplantTransplant · May 14 – May 28
BeansSow outdoors · May 7 – May 21
Sweet cornSow outdoors · May 7 – May 21
Cucumbers, squashSow outdoors · May 7 – May 21
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 30) 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 17931 came on Apr 2 — 9 days earlier than the 1991–2020 average (Apr 11).

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 Frackville, PA.

Soil in Frackville, PA

The soil mapped at the center of ZIP 17931 is Hazleton — very channery sandy loam, well drained.

TextureVery channery sandy loamdrains and warms fast; dries out and needs more feeding
pH5.4strongly acidic; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter3%moderate
Hydrologic groupAwater soaks in fast
Farmland classNot prime farmlandUSDA classification

Map unit: Hazleton-Clymer association, gently sloping.

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 17931; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Frackville, PA

Summer high80 °Faverage high, July
Winter low18 °Faverage low, January
Hot days2days a year at 90 °F or more
Freezing nights139nights a year at 32 °F or less
Growing degree days2,499base 50 °F — the season’s usable heat
Longest day15 h 06 mindaylight on June 21
Shortest day9 h 15 mindaylight on December 21
Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)
Precipitation53.6 inper year, rain and melted snow
Snowfall48 inper year; 59 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 33 °F, low 18 °F 33°18° JanFebruary: average high 35 °F, low 18 °F 35°18° FebMarch: average high 44 °F, low 25 °F 44°25° MarApril: average high 57 °F, low 37 °F 57°37° AprMay: average high 67 °F, low 47 °F 67°47° MayJune: average high 76 °F, low 56 °F 76°56° JunJuly: average high 80 °F, low 61 °F 80°61° JulAugust: average high 78 °F, low 58 °F 78°58° AugSeptember: average high 72 °F, low 52 °F 72°52° SepOctober: average high 60 °F, low 41 °F 60°41° OctNovember: average high 48 °F, low 31 °F 48°31° NovDecember: average high 37 °F, low 23 °F 37°23° Dec

Precipitation by month inches · ❄ = snowfall

0″1″2″3″4″5″6″January: 3.89 in precipitation, 12.3 in snowfall 3.9❄12 JanFebruary: 3.00 in precipitation, 12.7 in snowfall 3.0❄13 FebMarch: 4.21 in precipitation, 9.2 in snowfall 4.2❄9 MarApril: 4.39 in precipitation, 2.1 in snowfall 4.4❄2 AprMay: 4.65 in precipitation 4.7 MayJune: 5.07 in precipitation 5.1 JunJuly: 5.20 in precipitation 5.2 JulAugust: 4.68 in precipitation 4.7 AugSeptember: 5.24 in precipitation 5.2 SepOctober: 4.85 in precipitation, 0.5 in snowfall 4.8❄1 OctNovember: 4.12 in precipitation, 2.2 in snowfall 4.1❄2 NovDecember: 4.29 in precipitation, 9 in snowfall 4.3❄9 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Mahanoy City 2 N, PA (5 mi away); precipitation: Mahanoy City 2 N, PA (5 mi away). Daylight is calculated from latitude.

ZIP codes in Frackville

179316b
−5 to 0 °F
179326b
−5 to 0 °F

Pennsylvania planting zones →

Questions about Frackville

What planting zone is Frackville, PA?

Frackville, PA is in USDA hardiness zone 6b on the 2023 map (6b: −5 to 0 °F).

When is the last frost in Frackville, PA?

The median last spring frost is April 30 and the median first fall frost is October 22 (NOAA 1991–2020 normals, Mahanoy City 2 N station).

When can I plant a garden in Frackville, PA?

Cool-season crops like peas and spinach go in around Mar 19 – Apr 9; tomatoes, peppers, beans and squash after about May 7, once frost risk has passed.

What kind of onions grow in Frackville, PA?

Long-day onions: the longest day is 15 h 06 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).

How much rain and snow does Frackville, PA get?

About 53.6 inches of precipitation a year and 48 inches of snowfall (NOAA 1991–2020 normals).