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

Planting zone for 17557 — New Holland, PA

ZIP code 17557 (New Holland, Lancaster County) is in USDA zone 7a: the coldest winter night averages 0 to 5 °F. The median last spring frost is April 14 and the first fall frost November 1.

Where ZIP 17557 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.

Zone7a0 to 5 °F
Coldest night−17.8 to −15 °C
Last frostApr 14
First frostNov 1
2012 zone6b

Was 6b 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 7a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for New Holland, 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 New Holland, PA

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 14median — 50% chance of a later frost
Safe for tender plantsApril 30only 10% chance of frost after
First fall frostNovember 1median — 10% chance by Oct 17
Growing season198 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 3 and returns around November 11.

From the NOAA station New Holland 2 Se, PA — 2 miles away, elevation 604 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 17557

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 3 – Mar 17
SpinachSow outdoors · Mar 3 – Mar 24
Broccoli, cabbageStart indoors · Feb 3 – Feb 17
Broccoli, cabbageTransplant · Mar 24 – Apr 7
Onion setsPlant outdoors · Mar 17 – Mar 31
PotatoesPlant outdoors · Mar 24 – Apr 7
LettuceSow outdoors · Mar 17 – Mar 31
Carrots, beetsSow outdoors · Mar 24 – Apr 7
TomatoesStart indoors · Feb 17 – Mar 3
TomatoesTransplant · Apr 21 – May 5
Peppers, eggplantStart indoors · Feb 3 – Feb 17
Peppers, eggplantTransplant · Apr 28 – May 12
BeansSow outdoors · Apr 21 – May 5
Sweet cornSow outdoors · Apr 21 – May 5
Cucumbers, squashSow outdoors · Apr 21 – May 5
Fall lettuce, spinachSow outdoors · Sep 6 – Sep 20
GarlicPlant cloves · Oct 18 – Nov 22
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 14) and first fall frost (Nov 1) 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 17557 came on Mar 22 — 4 days earlier than the 1991–2020 average (Mar 26).

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 7a in Pennsylvania

620 plants native to the lower 48 states, recorded in Pennsylvania, and rated by the USDA to survive 0 °F or colder — the bottom of zone 7a. Each links to its USDA PLANTS profile.

Trees 78

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 123

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 212

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 181

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 11

American bittersweet15 ft · blooms spring · low shade tolerance · to −38 °FAmerican wisteria50 ft · blooms spring · low shade tolerance · to −3 °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 °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 New Holland, PA.

Soil in New Holland, PA

The soil mapped at the center of ZIP 17557 is Hagerstown — silt loam, well drained.

TextureSilt loama good balance for most vegetables
pH6.0slightly acidic; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter3%moderate
Hydrologic groupBwater soaks in moderately
Farmland classprime farmlandUSDA classification

Map unit: Hagerstown silt 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 17557; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in New Holland, PA

Summer high86 °Faverage high, July
Winter low24 °Faverage low, January
Hot days20days a year at 90 °F or more
Freezing nights97nights a year at 32 °F or less
Growing degree days3,607base 50 °F — the season’s usable heat
Longest day15 h 02 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)
Precipitation46.8 inper year, rain and melted snow
Snowfall34 inper year; 29 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 39 °F, low 24 °F 39°24° JanFebruary: average high 42 °F, low 25 °F 42°25° FebMarch: average high 51 °F, low 32 °F 51°32° MarApril: average high 63 °F, low 42 °F 63°42° AprMay: average high 73 °F, low 53 °F 73°53° MayJune: average high 81 °F, low 62 °F 81°62° JunJuly: average high 86 °F, low 66 °F 86°66° JulAugust: average high 84 °F, low 65 °F 84°65° AugSeptember: average high 77 °F, low 58 °F 77°58° SepOctober: average high 65 °F, low 47 °F 65°47° OctNovember: average high 54 °F, low 37 °F 54°37° NovDecember: average high 43 °F, low 29 °F 43°29° Dec

Precipitation by month inches · ❄ = snowfall

0″1″2″3″4″5″January: 3.34 in precipitation, 10.3 in snowfall 3.3❄10 JanFebruary: 2.78 in precipitation, 10.6 in snowfall 2.8❄11 FebMarch: 4.11 in precipitation, 5.5 in snowfall 4.1❄6 MarApril: 3.56 in precipitation, 1.2 in snowfall 3.6❄1 AprMay: 3.52 in precipitation 3.5 MayJune: 4.50 in precipitation 4.5 JunJuly: 4.43 in precipitation 4.4 JulAugust: 4.27 in precipitation 4.3 AugSeptember: 4.90 in precipitation 4.9 SepOctober: 4.56 in precipitation, 0.3 in snowfall 4.6 OctNovember: 3.18 in precipitation, 1 in snowfall 3.2❄1 NovDecember: 3.69 in precipitation, 4.6 in snowfall 3.7❄5 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: New Holland 2 Se, PA (2 mi away); precipitation: New Holland 2 Se, PA (2 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 7a.

175067a
Blue Ball, PA · 2 mi
175497a
Martindale, PA · 4 mi
175817a
Terre Hill, PA · 4 mi
175197a
East Earl, PA · 4 mi
175287a
Goodville, PA · 4 mi
175297a
Gordonville, PA · 4 mi
175347a
Intercourse, PA · 5 mi
175407a
Leola, PA · 6 mi

Pennsylvania planting zones →

Questions about 17557

What planting zone is ZIP code 17557?

ZIP code 17557 (New Holland, PA) is in USDA hardiness zone 7a on the 2023 map: the coldest night of an average winter reaches 0 to 5 °F (−17.8 to −15 °C).

When is the last frost in New Holland, PA?

The median last spring frost (32 °F) near 17557 is April 14; after April 30 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, New Holland 2 Se station.

When is the first frost in New Holland, PA?

The median first fall frost near 17557 is November 1, giving a median frost-free growing season of 198 days.

When should I plant tomatoes in 17557?

Start tomato seeds indoors around Feb 17 – Mar 3 and set transplants outside around Apr 21 – May 5, one to three weeks after the median last frost.

How much rain and snow does 17557 get?

About 46.8 inches of precipitation a year and 34 inches of snowfall (NOAA 1991–2020 normals, New Holland 2 Se station).

How hot do summers get in New Holland, 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 17557 have?

The USDA soil survey maps Hagerstown at the center of ZIP 17557: silt loam, well drained, pH about 6.0 (slightly acidic).

Did spring come early in New Holland, PA in 2026?

Spring leaf-out near 17557 came on Mar 22 in 2026, 4 days earlier than the 1991–2020 average (Mar 26), according to the USA National Phenology Network Spring Index.

What kind of onions grow in New Holland, PA?

Long-day onions: the longest day near 17557 is 15 h 02 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).

Did the zone for 17557 change?

Yes. The 2012 USDA map put 17557 in zone 6b; the 2023 map puts it in zone 7a. The newer map uses 1991–2020 data and more weather stations.