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

Planting zone for 16667 — Osterburg, PA

ZIP code 16667 (Osterburg, Bedford County) is in USDA zone 6b: the coldest winter night averages −5 to 0 °F. The median last spring frost is April 29 and the first fall frost October 13.

Where ZIP 16667 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 29
First frostOct 13
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 Osterburg, 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 Osterburg, PA

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 29median — 50% chance of a later frost
Safe for tender plantsMay 18only 10% chance of frost after
First fall frostOctober 13median — 10% chance by Sep 29
Growing season167 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 13 and returns around October 27.

From the NOAA station Wolfsburg, PA — 10 miles away, elevation 1,184 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 16667

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 18 – Apr 1
SpinachSow outdoors · Mar 18 – Apr 8
Broccoli, cabbageStart indoors · Feb 18 – Mar 4
Broccoli, cabbageTransplant · Apr 8 – Apr 22
Onion setsPlant outdoors · Apr 1 – Apr 15
PotatoesPlant outdoors · Apr 8 – Apr 22
LettuceSow outdoors · Apr 1 – Apr 15
Carrots, beetsSow outdoors · Apr 8 – Apr 22
TomatoesStart indoors · Mar 4 – Mar 18
TomatoesTransplant · May 6 – May 20
Peppers, eggplantStart indoors · Feb 18 – Mar 4
Peppers, eggplantTransplant · May 13 – May 27
BeansSow outdoors · May 6 – May 20
Sweet cornSow outdoors · May 6 – May 20
Cucumbers, squashSow outdoors · May 6 – May 20
Fall lettuce, spinachSow outdoors · Aug 18 – Sep 1
GarlicPlant cloves · Sep 29 – Nov 3
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 29) and first fall frost (Oct 13) 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 16667 came on Mar 19 — 15 days earlier than the 1991–2020 average (Apr 3).

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 Osterburg, PA.

Soil in Osterburg, PA

The soil mapped at the center of ZIP 16667 is Laidig — cobbly loam, well drained.

TextureCobbly loama good balance for most vegetables
pH5.6moderately acidic; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter2.5%moderate
Hydrologic groupBwater soaks in moderately
Farmland classFarmland of statewide importanceUSDA classification

Map unit: Laidig cobbly loam, 8 to 15 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 16667; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Osterburg, PA

Summer high86 °Faverage high, July
Winter low19 °Faverage low, January
Hot days20days a year at 90 °F or more
Freezing nights142nights a year at 32 °F or less
Growing degree days2,881base 50 °F — the season’s usable heat
Longest day15 h 02 mindaylight on June 21
Shortest day9 h 18 mindaylight on December 21
Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)
Precipitation40.5 inper year, rain and melted snow
Snowfall38 inper year; 40 days with snow on the ground

Average high and low, by month

10°20°30°40°50°60°70°80°90°100°32 °FJanuary: average high 37 °F, low 19 °F 37°19° JanFebruary: average high 41 °F, low 21 °F 41°21° FebMarch: average high 50 °F, low 27 °F 50°27° MarApril: average high 63 °F, low 37 °F 63°37° AprMay: average high 72 °F, low 46 °F 72°46° MayJune: average high 80 °F, low 56 °F 80°56° JunJuly: average high 86 °F, low 60 °F 86°60° JulAugust: average high 83 °F, low 58 °F 83°58° AugSeptember: average high 77 °F, low 50 °F 77°50° SepOctober: average high 65 °F, low 39 °F 65°39° OctNovember: average high 52 °F, low 30 °F 52°30° NovDecember: average high 41 °F, low 24 °F 41°24° Dec

Precipitation by month inches · ❄ = snowfall

0″1″2″3″4″5″January: 2.79 in precipitation, 10.3 in snowfall 2.8❄10 JanFebruary: 2.29 in precipitation, 10.3 in snowfall 2.3❄10 FebMarch: 3.36 in precipitation, 8 in snowfall 3.4❄8 MarApril: 3.60 in precipitation, 0.5 in snowfall 3.6❄1 AprMay: 4.37 in precipitation 4.4 MayJune: 4.02 in precipitation 4.0 JunJuly: 3.75 in precipitation 3.8 JulAugust: 3.31 in precipitation 3.3 AugSeptember: 3.81 in precipitation 3.8 SepOctober: 3.12 in precipitation, 0.1 in snowfall 3.1 OctNovember: 3.00 in precipitation, 1.7 in snowfall 3.0❄2 NovDecember: 3.06 in precipitation, 6.7 in snowfall 3.1❄7 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Wolfsburg, PA (10 mi away); precipitation: Wolfsburg, PA (10 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 6b.

166556b
Imler, PA · 3 mi
155396b
Fishertown, PA · 5 mi
166706b
Queen, PA · 5 mi
166646b
New Enterprise, PA · 6 mi
155216b
Alum Bank, PA · 6 mi
155546b
New Paris, PA · 7 mi
166256b
Claysburg, PA · 7 mi
166596b
Loysburg, PA · 7 mi

Pennsylvania planting zones →

Questions about 16667

What planting zone is ZIP code 16667?

ZIP code 16667 (Osterburg, 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 Osterburg, PA?

The median last spring frost (32 °F) near 16667 is April 29; after May 18 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Wolfsburg station.

When is the first frost in Osterburg, PA?

The median first fall frost near 16667 is October 13, giving a median frost-free growing season of 167 days.

When should I plant tomatoes in 16667?

Start tomato seeds indoors around Mar 4 – Mar 18 and set transplants outside around May 6 – May 20, one to three weeks after the median last frost.

How much rain and snow does 16667 get?

About 40.5 inches of precipitation a year and 38 inches of snowfall (NOAA 1991–2020 normals, Wolfsburg station).

How hot do summers get in Osterburg, PA?

The average high peaks at 86 °F in July, with about 20 days a year at 90 °F or more.

What kind of soil does 16667 have?

The USDA soil survey maps Laidig at the center of ZIP 16667: cobbly loam, well drained, pH about 5.6 (moderately acidic).

Did spring come early in Osterburg, PA in 2026?

Spring leaf-out near 16667 came on Mar 19 in 2026, 15 days earlier than the 1991–2020 average (Apr 3), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Osterburg, PA?

Long-day onions: the longest day near 16667 is 15 h 02 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).

Did the zone for 16667 change?

Yes. The 2012 USDA map put 16667 in zone 6a; the 2023 map puts it in zone 6b. The newer map uses 1991–2020 data and more weather stations.